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Page 1 SEL SEL-351S-5 Protection and Breaker Control Relay In Stock Used and in Excellent Condition Buy Today! https://www.artisantg.com/90974-1 A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
Page 2 SEL-351S Relay Relay, Meter, Control, Fault Locator Instruction Manual 20080103 *PM351S-01-NB* Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 3 © 1999–2008 by Schweitzer Engineering Laboratories, Inc. All rights reserved. All brand or product names appearing in this document are the trademark or registered trademark of their respective holders. No SEL trademarks may be used without written permission. SEL products appearing in this document may be covered by US and Foreign patents.
Page 4: Table Of Contents
Front-Panel and Rear-Panel Connection Diagrams..................2.3 User-Configurable Label Option for the Front Panel ..................2.9 Making Rear-Panel Connections ........................2.14 SEL-351S AC/DC Connection Diagrams for Various Applications ............. 2.25 Circuit Board Connections ..........................2.40 Section 3: Overcurrent, Voltage, Synchronism Check, Frequency, and Power Elements Instantaneous/Definite-Time Overcurrent Elements ..................
Page 5 Section 9: Setting the Relay Introduction..............................9.1 Settings Changes via the Front Panel.......................9.3 Settings Changes via the Serial Port ........................9.4 Time-Overcurrent Curves ..........................9.5 Relay Word Bits (Used in SEL Control Equations)................9.27 OGIC Settings Explanations.............................9.48 Settings Sheets ...............................9.57 Section 10: Serial Port Communications and Commands Introduction..............................10.1...
Page 6 Factory Assistance............................13.14 Appendix A: Firmware and Manual Versions Firmware................................. A.1 Instruction Manual............................A.6 Appendix B: SEL-300 Series Relays Firmware Upgrade Instructions Overview .................................B.1 Relay Firmware Upgrade Instructions......................B.1 Ethernet Port Firmware Upgrade Instructions....................B.18 Appendix C: SEL Distributed Port Switch Protocol Settings ................................C.2...
Page 7 Operation ................................. I.3 Protocol for the Pulsar 9600 Baud Modem ................I.6 IRRORED Settings................................I.7 Appendix J: SEL-351S Fast SER Protocol Introduction..............................J.1 Make Sequential Events Recorder (SER) Settings With Care................. J.2 Recommended Message Usage ........................J.3 Functions and Function Codes......................... J.4...
Page 8: List Of Tables
SEL-351S Firmware Versions ....................1.3 Table 2.1 Options and Explanations for the User-Configurable Front-Panel Labels......2.13 Table 2.2 Communication Cables to Connect the SEL-351S to Other Devices ........2.24 Table 2.3 Output Contact Jumpers and Corresponding Output Contacts ..........2.45 Table 2.4 “Extra Alarm”...
Page 9 Serial Port Automatic Messages...................10.9 Table 10.5 Serial Port Command Summary ..................10.12 Table 10.6 SEL-351S Word and Its Correspondence to TAR Command..........10.35 Table 10.7 SEL-351S Control Subcommand ..................10.41 Table 10.8 Factory Default Passwords for Access Levels 1, B, and 2 ..........10.42 Table 10.9...
Page 10 SEL-351S Serial Port Settings for Synchrophasors ...............L.8 Table L.7 Time Synchronization Relay Word Bits................L.11 Table L.8 SEL Fast Message Voltage and Current Selections Based on PHDATAV and PHDATAI...L.14 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 12: List Of Figures
Horizontal Rack-Mount Example, (Connectorized, With Additional I/O Board)....2.8 Figure 2.7 SEL-351S (Horizontal) With User-Configurable Default Labels.......... 2.9 Figure 2.8 SEL-351S (Horizontal) Blank Slide-In Label Set and Label Removal Tool ....... 2.10 Figure 2.9 SEL-351S (Vertical) With User-Configurable Default Labels ..........2.11 Figure 2.10 SEL-351S (Vertical) Blank Slide-In Label Set and Label Removal Tool ......
Page 13 SEL-351S Example Wiring Diagram Using the Auxiliary {TRIP}/{CLOSE} Pushbuttons for 0351Sxxx5/6/A/B Models ..............2.39 Figure 2.32 Jumper, Connector, and Major Component Locations on the SEL-351S Main Board ..2.41 Figure 2.33 Jumper, Connector, and Major Component Locations on the SEL-351SxY Extra I/O Board (Plug-In Connector Version) ................2.42 Figure 2.34...
Page 14 POTT Logic.......................... 5.18 Figure 5.7 Permissive Input Logic Routing to Trip Logic..............5.19 Figure 5.8 SEL-351S Connections to Communications Equipment for a Two-Terminal Line POTT Scheme..........................5.20 Figure 5.9 SEL-351S Connections to Communications Equipment for a Three-Terminal Line POTT Scheme..........................5.20 Figure 5.10...
Page 15 Figure 6.6 Reclose Supervision Limit Timer Operation (Refer to Bottom of Figure 6.5).......6.8 Figure 6.7 SEL-351S Relays Installed at Both Ends of a Transmission Line in a High-Speed Reclose Scheme ..........................6.11 Figure 6.8 Reclosing Relay States and General Operation ..............6.15 Figure 6.9...
Page 16 Figure 8.1 Plotted Breaker Maintenance Points for a 25 kV Circuit Breaker ......... 8.3 Figure 8.2 SEL-351S Breaker Maintenance Curve for a 25 kV Circuit Breaker ........8.5 Figure 8.3 Operation of SEL Control Equation Breaker Monitor Initiation Setting ....... 8.6 OGIC Figure 8.4...
Page 17 Correcting the Port Setting ....................B.6 Figure B.7 Correcting the Communications Parameters ................. B.6 Figure B.8 Preparing HyperTerminal for ID Command Display ............B.8 Figure B.9 List of Commands Available in SEL ................B.9 BOOT Figure B.10 Matching Computer to Relay Parameters................B.10 Figure B.11 Example Receive File Dialog Box..................
Page 18: Preface
Overview This manual provides information and instructions for installing, setting, configuring, and operating the SEL-351S Relay. The manual is for use by power engineers and others experienced in protective relaying applications. Included are detailed technical descriptions of the relay and application examples.
Page 19 OGIC equation, global, SER, text label, and serial port settings The Settings Sheets can be photocopied and filled out to set the SEL-351S. Note that these sheets correspond to the serial port SET commands listed in Table 9.1. Section 10: Serial Port Communications and Commands.
Page 20 Preface xvii ➤ Appendix K: acSELerator QuickSet SEL-5030 Software ➤ Appendix L: SEL Synchrophasors SEL-351S Relay Command Summary briefly describes the serial port commands that are described in detail in Section 10: Serial Port Communications and Commands. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ...
Page 21: Typographic Conventions
Examples This instruction manual uses several example illustrations and instructions to explain how to effectively operate the SEL-351S. These examples are for demonstration purposes only; the firmware identification information or settings values included in these examples may not necessarily match those in the current version of your SEL-351S.
Page 22: Safety Information
DANGER Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 23 This page intentionally left blank Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 24: Introduction And Specifications
Section 1 Introduction and Specifications This section includes the following overviews of the SEL-351S Relay: SEL-351S Models on page 1.2 Applications on page 1.5 Hardware Connection Features on page 1.6 Communications Connections on page 1.9 Specifications on page 1.10 Instruction Manual...
Page 25: Sel-351S Models
(see Table 1.2). These numbers should not be used to order an SEL-351S. To order an SEL-351S, refer to the actual ordering information sheets. Models 0351Sx1 and 0351SxY can be ordered with a horizontal rack mount or horizontal/vertical panel mount.
Page 26: Table 1.2 Sel-351S Firmware Versions
Includes firmware version 6 features plus power and voltage sag/swell/interruption elements. SEL-351S relays with firmware version 5, 6, or 7 come with 300 Vac voltage inputs only (connect any voltage up to 300 Vac, line-to-neutral). Auxiliary {TRIP} and The SEL-351S part number indicates whether the relay has auxiliary {TRIP} and {CLOSE} pushbuttons.
Page 27: Potential Transformer Connections
Introduction and Specifications SEL-351S Models severe CT saturation, the adaptive current is the output of the bipolar peak detector. When the harmonic distortion index is below the fixed threshold, the adaptive current is the output of the cosine filter. The cosine filter provides excellent performance in removing dc offset and harmonics.
Page 28: Applications
Recloser Line Recloser SEL-351R Installations The SEL-351R Recloser Control is a similar product to the SEL-351S. The SEL-351R is powered by 120 Vac and is ideally suited for applications outside the substation. q See Figure 2.19 Figure 2.20, w See Figure 2.21...
Page 29: Hardware Connection Features
SUPPLY BATTERY MONITOR CHASSIS GROUND Figure 1.2 Inputs, Outputs, and Communications Ports (Extra I/O Boards in Figure 1.3 Figure 1.4) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 30: Figure 1.3 Extra I/O Board (Model 0351Sxy, Plug-In Connector Version; Main Board Shown In Figure 1.2)
If the output contacts are high- OUT201 current interrupting output contacts, they are polarity dependent. See Table 1.1 for information on SEL-351S models with the high-current OUT202 interrupting output contact option. Output Contacts on page 2.16 more information on the polarity...
Page 31: Figure 1.4 Extra I/O Board
If the output contacts are high- OUT201 current interrupting output contacts, they are polarity dependent. See Table 1.1 for information on SEL-351S models with the high-current OUT202 interrupting output contact option. Output Contacts on page 2.16 more information on the polarity...
Page 32: Communications Connections
Computer Port 1 Port 1 Port 1 SEL-351 Relay (#1) SEL-351 Relay (#2) SEL-351 Relay (#32) Local Connections Connect to the SEL communications processor once and communicate with Front Panel any connected SEL relay SEL-2032 Port 2 Port 2 Rear Panel...
Page 33: Specifications
Introduction and Specifications Specifications Specifications Important: Do not use the following specification information to Rated: 48/125 Vdc or 125 Vac order an SEL-351S. Refer to the actual ordering information sheets. Range: 38–200 Vdc or 85–140 Vac Section 1 Introduction and Specifications Burden: <25 W...
Page 34 Routine Dielectric and Impulse Tests Current inputs, optoisolated inputs, and output contacts: 2500 Vac for 10 s Power supply: 3100 Vdc for 10 s Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 35 Part 21: Vibration, shock, bump, and Figure 3.6. seismic tests on measuring relays and protection equipment, Section Three: Seismic tests, Class 2 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 36: Substation Battery Voltage Monitor
Slip Frequency ±0.003 Hz (delta Pickup Accuracy: connected voltages) ±0.5° Phase Angle Range: 0–80°, 1° steps Phase Angle Accuracy: ±4° Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 37: Power Element Accuracy
1–7800 VA power factor for reactive power {1 A nominal}: element {5 A nominal} (Specification is with respect to MET PM command and SEL Fast ±0.005 A • (L-L voltage secondary) Message Synchrophasor Protocol.) and ±5% of setting at unity power Voltages (33.5–150 V;...
Page 38: Section 2: Installation
Relay Mounting Rack Mount We offer the SEL-351S Relay in a rack-mount version that bolts easily into a standard 19-inch rack. See Figure 2.1. From the front of the relay, insert four rack screws (two on each side) through the holes on the relay mounting flanges.
Page 39: Figure 2.1 Sel-351S Dimensions For Rack-Mount And Panel-Mount Models
Installation Relay Mounting Figure 2.1 SEL-351S Dimensions for Rack-Mount and Panel-Mount Models SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 40: Front-Panel And Rear-Panel Connection Diagrams
All units can be ordered with either conventional terminal blocks or plug-in connectors. For model options, view the SEL-351S Model Option Tables on our website or contact your local SEL sales representative. Figure 2.2–Figure 2.5 show the various front-panel configurations available for the SEL-351S.
Page 41: Figure 2.2 Sel-351S Front- And Rear-Panel Drawings (Model 0351Sxyh3Xxxx6X); Horizontal Rack Mount Example, (Connectorized, With Additional I/O Board)
Installation Front-Panel and Rear-Panel Connection Diagrams Figure 2.2 SEL-351S Front- and Rear-Panel Drawings (Model 0351SxYH3xxxx6x); Horizontal Rack Mount Example, (Connectorized, With Additional I/O Board) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 42: Figure 2.3 Sel-351S Front- And Rear-Panel Drawings (Model 0351Sx133Xxxx2X); Horizontal Panel Mount Example, (Conventional Terminal Blocks, With Additional I/O Board)
Installation Front-Panel and Rear-Panel Connection Diagrams Figure 2.3 SEL-351S Front- and Rear-Panel Drawings (Model 0351Sx133xxxx2x); Horizontal Panel Mount Example, (Conventional Terminal Blocks, With Additional I/O Board) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 43: Figure 2.4 Sel-351S Front- And Rear-Panel Drawings (Model 0351Sx143Xxxxxx); Vertical Panel Mount Example, (Conventional Terminal Blocks, No Additional I/O Board)
Installation Front-Panel and Rear-Panel Connection Diagrams Vertical Model Top i3190a Figure 2.4 SEL-351S Front- and Rear-Panel Drawings (Model 0351Sx143xxxxXx); Vertical Panel Mount Example, (Conventional Terminal Blocks, No Additional I/O Board) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 44: Figure 2.5 Sel-351S With Auxiliary {Trip}/{Close} Pushbuttons (Model 0351Sx145Xxxx6X); Vertical Panel-Mount Example, (Conventional Terminal Blocks, With Additional I/O Board)
Installation Front-Panel and Rear-Panel Connection Diagrams Vertical Model Top i3183a Figure 2.5 SEL-351S with Auxiliary {TRIP}/{CLOSE} Pushbuttons (Model 0351Sx145xxxx6x); Vertical Panel-Mount Example, (Conventional Terminal Blocks, With Additional I/O Board) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 45: Figure 2.6 Sel-351S With Auxiliary {Trip}/{Close} Pushbuttons (Model 0351Sxyh5Xxxx2X); Horizontal Rack-Mount Example, (Connectorized, With Additional I/O Board)
Installation Front-Panel and Rear-Panel Connection Diagrams Figure 2.6 SEL-351S with Auxiliary {TRIP}/{CLOSE} Pushbuttons (Model 0351SxYH5xxxx2x); Horizontal Rack-Mount Example, (Connectorized, With Additional I/O Board) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 46: User-Configurable Label Option For The Front Panel
User-Configurable Label Option for the Front Panel User-Configurable Label Option for the Front Panel SEL-351S relays with front-panel user-configurable labels have three (or four, depending on the model) pockets for slide-in labels: one for the target LED label, one for the breaker LEDs (for models with auxiliary {TRIP}/{CLOSE} pushbuttons), and two for the operator-control labels.
Page 47: Figure 2.8 Sel-351S (Horizontal) Blank Slide-In Label Set And Label Removal Tool
HAND 196-0525 HERE Label Removal Tool LABEL REMOVAL TOOL Figure 2.8 SEL-351S (Horizontal) Blank Slide-In Label Set and Label Removal Tool SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 48: Figure 2.9 Sel-351S (Vertical) With User-Configurable Default Labels
Default View Without Default View With Auxiliary {TRIP}/{CLOSE} Pushbuttons Auxiliary {TRIP}/{CLOSE} Pushbuttons Figure 2.9 SEL-351S (Vertical) With User-Configurable Default Labels Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 49 FINGER 196-0525 HAND HERE Label Removal Tool LABEL REMOVAL TOOL Figure 2.10 SEL-351S (Vertical) Blank Slide-In Label Set and Label Removal Tool WARNING The SEL-351S comes with default Table 2.1 lists the various options, with explanations, available for custom labels and settings. Any change in the labeling of the SEL-351S Front Panel.
Page 50: Table 2.1 Options And Explanations For The User-Configurable Front-Panel Labels
Connectorized Rear-Panel Default Labeling Conventional Terminal Blocks Breaker Status Labeling Figure 2.11 Breaker LED Front-Panel Default Labels and Rear-Panel Labels Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 51: Making Rear-Panel Connections
Wiring Harness The wiring harness includes all connectors necessary for relay installation. All connectors requiring special termination come prewired from the factory. The SEL-WA0351 Wiring Harness includes the following connectors (not prewired): ➤ (2) 8-position female plug-in connectors for output contacts OUT101–ALARM.
Page 52: Figure 2.12 Sel-351S Plug-In Connector Coding (Top View; Model 0351Sxy)
Model 0351SxY OUT101–OUT104 OUT105–ALARM Circuit Board-Mounted Connectors (male) IN101–IN103 IN104–IN106 Figure 2.12 SEL-351S Plug-In Connector Coding (Top View; Model 0351SxY) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 53: Chassis Ground
To determine the type of output contacts on the extra I/O board of your Model 0351S relay, refer to the part number on the serial number sticker on the relay rear panel. SEL-351S Relay Instruction Manual Date Code 20080103...
Page 54: Standard Output Contacts
I/O board with standard output contacts). Optoisolated Inputs The optoisolated inputs in any of the SEL-351S models (e.g., IN102, IN207) are not polarity dependent. With nominal control voltage applied, each optoisolated input draws approximately 4 mA of current. Refer to Specifications on page 1.10...
Page 55: Current Transformer Inputs
Figure 1.2 shows the internal connection for terminals VA, VB, VC, and N. Note also that VS-NS is a separate single-phase voltage input. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 56: Voltage Input Rating
R108 (or higher) indicates “300 V Wye/Delta.” The part number sticker on previously manufactured SEL-351S relays indicates “300 V Wye.” If older SEL-351S relays (with firmware revisions R102 through R107) are upgraded to R108 (or higher) firmware, they too can be wye connected or delta connected, provided that the voltage rating is not exceeded.
Page 57: Synchronism Check Vs Connection (Global Setting Vsconn = Vs)
Synchronism Check Elements on page 3.36. SEL-351S relays with firmware revisions R107 and earlier do not have a VSCONN setting. In these relays, voltage input VS-NS operates in its traditional role of voltage input for synchronism check (as if setting VSCONN = VS).
Page 58: Wye-Connected Pt Example
VS-NS, such as when secondary wires are on the wrong terminals, will not necessarily be apparent until a ground fault occurs or testing is performed. Wye-Connected PT Example Setting PTCONN = WYE Open Circuit SEL-351 Relay for Test Broken-Delta Step-Down Transformer Setting VSCONN = 3V0 Figure 2.13 Broken-Delta Secondary Connection to Voltage Input VS,...
Page 59: Figure 2.14 Resultant Voltage V
Broken-Delta Secondary (Compared to the Wye-Connected Power System Voltages Open-Delta Connected PT Example Open-Delta Setting PTCONN = DELTA Open Circuit SEL-351 Relay for Test Broken-Delta Step-Down Transformer Setting VSCONN = 3V0 Figure 2.15 Broken-Delta Secondary Connection to Voltage Input VS,...
Page 60: Figure 2.16 Resultant Voltage V
System Voltages) Serial Ports Serial PORT 1 on all the SEL-351S models is an EIA-485 port (4-wire). The serial PORT 1 plug-in connector accepts wire size AWG 24 to 12. Strip the wires 0.31 inches (8 mm) and install with a small slotted-tip screwdriver.
Page 61: Table 2.2 Communication Cables To Connect The Sel-351S To Other Devices
PORT 1 or PORT 2, but not both. A demodulated IRIG-B time code can be input into serial PORT 2 by connecting serial PORT 2 of the SEL-351S to an SEL-2032, SEL-2030, or SEL-2020 Communications Processor using Cable C273A.
Page 62: Sel-351S Ac/Dc Connection Diagrams For Various Applications
). But in this residual connection example, the neutral ground and residual ground overcurrent elements operate the same because I Figure 2.17 SEL-351S Provides Overcurrent Protection and Reclosing for a Utility Distribution Feeder (Includes Fast Bus Trip Scheme) (Wye-Connected PTs)
Page 63: Figure 2.18 Sel-351S Provides Overcurrent Protection For A Distribution Bus (Includes Fast Bus Trip Scheme) (Wye-Connected Pts)
Although automatic reclosing is probably not needed in this example, output contact OUT102 can close the circuit breaker via initiation from various means (serial port communications, optoisolated input assertion, etc.), with desired supervision (e.g., synchronism check). Figure 2.18 SEL-351S Provides Overcurrent Protection for a Distribution Bus (Includes Fast Bus Trip Scheme) (Wye-Connected PTs) SEL-351S Relay...
Page 64: Figure 2.19 Sel-351S Provides Directional Overcurrent Protection And Reclosing For A Transmission Line (Wye-Connected Pts)
= 3I ). But in this residual connection example, the neutral ground and residual ground overcurrent elements operate the same because I Figure 2.19 SEL-351S Provides Directional Overcurrent Protection and Reclosing for a Transmission Line (Wye-Connected PTs) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ...
Page 65: Figure 2.20 Sel-351S Provides Directional Overcurrent Protection And Reclosing For A Transmission Line (Current-Polarization Source Connected To Channel In) (Wye-Connected Pts)
Separate from Channel IN, the residual ground overcurrent elements operate from the internally = 3I derived residual current I Figure 2.20 SEL-351S Provides Directional Overcurrent Protection and Reclosing for a Transmission Line (Current-Polarization Source Connected to Channel IN) (Wye-Connected PTs) SEL-351S Relay...
Page 66: Figure 2.21 Sel-351S Provides Overcurrent Protection For A Delta-Wye Transformer Bank (Wye-Connected Pts)
(serial port communications, optoisolated input assertion, etc.), with desired supervision (e.g., hot bus check). For sensitive earth fault (SEF) applications, the SEL-351S should be ordered with Channel IN rated at 0.2 A or 0.05 A nominal. See current input specifications in the subsection Specifications: General on page 1.10.
Page 67: Figure 2.22 Sel-351S Provides Overcurrent Protection For A Transformer Bank With A Tertiary Winding (Wye-Connected Pts)
Although automatic reclosing is probably not needed in this example, output contact OUT102 can close the circuit breaker via initiation from various means (serial port communications, optoisolated input assertion, etc.), with desired supervision (e.g., hot bus check). Figure 2.22 SEL-351S Provides Overcurrent Protection for a Transformer Bank With a Tertiary Winding (Wye-Connected PTs) SEL-351S Relay...
Page 68: Figure 2.23 Sel-351S Provides Overcurrent Protection For An Industrial Distribution Feeder (Core-Balance Current Transformer Connected To Channel In)
(serial port communications, optoisolated input assertion, etc.), with desired supervision. For sensitive earth fault (SEF) applications, the SEL-351S should be ordered with Channel IN rated at 0.2 A or 0.05 A nominal. See current input specifications in subsection Specifications: General on page 1.10.
Page 69: Figure 2.24 Sel-351S Provides Dedicated Breaker Failure Protection
I = 3I ). But in this residual connection example, the neutral ground and residual ground overcurrent elements operate the same because I Figure 2.24 SEL-351S Provides Dedicated Breaker Failure Protection SEL-351S Relay Instruction Manual Date Code 20080103...
Page 70: Figure 2.25 Sel-351S Provides Overcurrent Protection For A High-Impedance Or Low-Impedance Grounded System (Wye-Connected Pts)
ORDER=U (see Table 4.3–Table 4.5). Nondirectional sensitive earth fault (SEF) protection is also available. Figure 2.25 SEL-351S Provides Overcurrent Protection for a High-Impedance or Low-Impedance Grounded System (Wye-Connected PTs) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ...
Page 71: Figure 2.26 Sel-351S Provides Overcurrent Protection For A Petersen Coil Grounded System (Wye-Connected Pts)
Directional control for a Petersen Coil grounded system is selected with setting ORDER containing P (see Table 4.3– Table 4.5). Nondirectional sensitive earth fault (SEF) protection is also available. Figure 2.26 SEL-351S Provides Overcurrent Protection for a Petersen Coil Grounded System (Wye-Connected PTs) SEL-351S Relay Instruction Manual Date Code 20080103...
Page 72: Figure 2.27 Sel-351S Provides Overcurrent Protection For An Ungrounded System (Wye-Connected Pts)
Directional control for an ungrounded system is selected with setting ORDER=U (see Table 4.3–Table 4.5). Nondirectional sensitive earth fault (SEF) protection is also available. Figure 2.27 SEL-351S Provides Overcurrent Protection for an Ungrounded System (Wye-Connected PTs) Instruction Manual SEL-351S Relay Date Code 20080103...
Page 73: Figure 2.28 Sel-351S Provides Overcurrent Protection For An Ungrounded System (Open-Delta Connected Pts, Broken-Delta 3V0 Connection)
The polarity of voltage input VS-NS connection should be verified prior to placing the relay into service. See Polarity Check for VSCONN = 3V0 on page 2.20 for a suggested procedure. Figure 2.28 SEL-351S Provides Overcurrent Protection for an Ungrounded System (Open-Delta Connected PTs, Broken-Delta 3V0 Connection) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ...
Page 74: Figure 2.29 Sel-351S Provides Overcurrent Protection And Reclosing For A Utility Distribution Feeder (Open-Delta Connected Pts And Line-To-Ground Synch-Check Connection)
). But, in this residual connection example, the neutral ground and residual ground overcurrent elements operate the same because I Figure 2.29 SEL-351S Provides Overcurrent Protection and Reclosing for a Utility Distribution Feeder (Open-Delta Connected PTs and Line-to-Ground Synch-Check Connection)
Page 75: Figure 2.30 Sel-351S Provides Underfrequency Load Shedding, Overcurrent Protection, And Reclosing For A Utility Distribution Feeder (Single Voltage Connection)
). But, in this residual connection example, the neutral ground and residual ground overcurrent elements operate the same because I Figure 2.30 SEL-351S Provides Underfrequency Load Shedding, Overcurrent Protection, and Reclosing for a Utility Distribution Feeder (Single Voltage Connection) SEL-351S Relay...
Page 76: Figure 2.31 Sel-351S Example Wiring Diagram Using The Auxiliary {Trip}/{Close} Pushbuttons For 0351Sxxx5/6/A/B Models
Protection Trips To Close Circuit — — Figure 2.31 SEL-351S Example Wiring Diagram Using the Auxiliary {TRIP}/{CLOSE} Pushbuttons for 0351Sxxx5/6/A/B Models Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 77: Circuit Board Connections
ESD damage. which drawout tray needs to be removed. The main board on the SEL-351S is the top board in the chassis. If the relay has an extra I/O board it is located underneath the main board. The magnetics/auxiliary pushbutton board and power supply are mounted to the bottom of the chassis.
Page 78: Figure 2.32 Jumper, Connector, And Major Component Locations On The Sel-351S Main Board
Step Step 16. Reenergize the relay. (On plug-in connector versions, replace the power connector at rear-panel terminals Z25 and Z26.) Figure 2.32 Jumper, Connector, and Major Component Locations on the SEL-351S Main Board Instruction Manual SEL-351S Relay Date Code 20080103...
Page 79: Figure 2.33 Jumper, Connector, And Major Component Locations On The Sel-351Sxy Extra I/O Board (Plug-In Connector Version)
2.42 Installation Circuit Board Connections Figure 2.33 Jumper, Connector, and Major Component Locations on the SEL-351SxY Extra I/O Board (Plug-In Connector Version) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 80: Figure 2.34 Jumper, Connector, And Major Component Locations On The Sel-351Sx1 Extra I/O Board (Screw Terminal Block Version)
Installation 2.43 Circuit Board Connections Figure 2.34 Jumper, Connector, and Major Component Locations on the SEL-351Sx1 Extra I/O Board (Screw Terminal Block Version) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 81: Figure 2.35 Jumper Locations For The 0351Sxxx5/6/A/B Model Magnetics/Auxiliary Pushbutton
This is how these jumpers are configured in a standard relay shipment. Refer to corresponding Figure 7.27–Figure 7.28 for examples of output contact operation for different output contact types. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 82: Table 2.3 Output Contact Jumpers And Corresponding Output Contacts
JMP17–JMP28 OUT212–OUT201 Figure 2.34 “Extra Alarm” The SEL-351S has dedicated alarm output contacts (labeled ALARM—see Figure 2.2–Figure 2.6). Often more than one alarm output contact is needed Output Contact for such applications as local or remote annunciation, backup schemes, etc.
Page 83: Table 2.6 Password And Breaker Jumper Positions For Standard Relay Shipments
EIA-232 Serial Port 2 EIA-232 Serial Port 3 Reference Figures (rear panel) (rear panel) JMP2 = OFF JMP1 = OFF Figure 2.32 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 84: Auxiliary {Trip}/ {Close} Pushbutton And Breaker Status Led Jumpers (0351Sxxx5/6/A/B Models Only)
To meet product safety compliance for end-use applications in North America, use an external fused rated 3 A or less in-line with the +5 Vdc source on Pin 1. SEL fiber-optic transceivers include a fuse that meets this requirement. Auxiliary {TRIP}/ The jumpers listed in Table 2.9...
Page 85 (see Section 10: Serial Port Communications and Commands Section 11: Front-Panel Interface, respectively).w SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 86: Phase Instantaneous/Definite-Time Overcurrent Elements
(1 A nominal phase current inputs, IA, IB, IC) Timer: ±0.25 cycles and ±0.1% of setting Transient Overreach: ±5% of setting Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 87: Section 3: Overcurrent, Voltage, Synchronism Check, Frequency, And Power Elements Instantaneous/Definite-Time Overcurrent Elements
E5OP ≥ 5) 50P6P Level 6 5OP6 Setting E5OP ≥ 6) (Max. Phase) Figure 3.2 Levels 5–6 Phase Instantaneous Overcurrent Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 88: Pickup Operation
Ideally, set 50P1P > 50P2P > 50P3P > 50P4P so that instantaneous overcurrent elements 67P1–67P4 will display in an organized fashion in event reports (see Figure 3.3 Table 12.3). Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 89: Figure 3.3 Levels 1-4 Phase Instantaneous/Definite-Time Overcurrent Elements
From Figure 3.1; w from Figure 4.24. Figure 3.3 Levels 1–4 Phase Instantaneous/Definite-Time Overcurrent Elements (With Directional Control Option) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 90 E32 = then the directional control input from Figure 4.24 (Level 1) is asserted to logical 1 continuously. Then only the corresponding SEL control OGIC equation torque control setting 67P1TC has to be considered in the control of the phase instantaneous/definite-time overcurrent elements 67P1/67P1T.
Page 91: Figure 3.4 Combined Single-Phase Instantaneous Overcurrent Elements
Figure 3.6 show pickup and reset time curves applicable to all nondirectional instantaneous overcurrent elements in the SEL-351S Relay (60 Hz or 50 Hz relays). These times do not include output contact operating time and, thus, are accurate for determining element operation time for use in internal SEL control equations.
Page 92: Figure 3.5 Sel-351S Nondirectional Instantaneous Overcurrent Element Pickup Time Curve
≤4: add 0.25 cycle multiples of pickup setting >4: add 0.50 cycle Maximum Minimum Applied Current (Multiples of Pickup Setting) Figure 3.5 SEL-351S Nondirectional Instantaneous Overcurrent Element Pickup Time Curve M aximum M inimum Applied Current (M ultiples of Pickup Setting) Figure 3.6 SEL-351S Nondirectional Instantaneous Overcurrent Element...
Page 93: Neutral Ground Instantaneous/Definite-Time Overcurrent Elements
Relay Word bits. Table 4.3 and accompanying note for a list of the directional features available with each neutral Channel (IN) rating. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 94: Figure 3.7 Levels 1-4 Phase-To-Phase Instantaneous Overcurrent Elements
⏐I — I ⏐ E5OP ≥ 4) 50CA4 ⏐I — I ⏐ Figure 3.7 Levels 1–4 Phase-to-Phase Instantaneous Overcurrent Elements Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 95: Figure 3.8 Levels 1-4 Neutral Ground Instantaneous/Definite-Time Overcurrent Elements
Setting Torque Control 67N4TC From Figure 4.18. Figure 3.8 Levels 1–4 Neutral Ground Instantaneous/Definite-Time Overcurrent Elements (With Directional Control Option) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 96: Figure 3.9 Levels 5-6 Neutral Ground Instantaneous Overcurrent Elements
(Levels 5 and 6) are also available. The different levels Definite-Time are enabled with the E50G enable setting, as shown in Figure 3.10 Figure 3.11. Overcurrent Elements Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 97 ±0.25 cycles and ±0.1% of setting Transient Overreach: ±5% of setting Pickup and Reset Time Curves Figure 3.5 Figure 3.6. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 98: Figure 3.10 Levels 1-4 Residual Ground Instantaneous/Definite-Time Overcurrent Elements
Setting Torque Control 67G4TC From Figure 4.17. Figure 3.10 Levels 1–4 Residual Ground Instantaneous/Definite-Time Overcurrent Elements (With Directional Control Option) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 99: Figure 3.11 Levels 5-6 Residual Ground Instantaneous Overcurrent Elements
0.00–16000.00 cycles, in 0.25-cycle steps Setting range for definite-time setting 67Q2SD (used in DCB logic): 0.00–60.00 cycles, in 0.25-cycle steps SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 100: Figure 3.12 Levels 1-4 Negative-Sequence Instantaneous/Definite-Time Overcurrent Elements
OGIC Setting Torque Control 67Q4TC From Figure 4.23. Figure 3.12 Levels 1–4 Negative-Sequence Instantaneous/Definite-Time Overcurrent Elements (With Directional Control Option) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 101: Figure 3.13 Levels 5-6 Negative-Sequence Instantaneous Overcurrent Elements
±0.25 cycles and ±0.1% of setting Transient Overreach: ±5% of setting Pickup and Reset Time Curves Figure 3.5 Figure 3.6. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 102: Time-Overcurrent Elements
(e.g., 51P1TC) cannot be set directly to OGIC logical 0. Section 9: Setting the Relay for additional time-overcurrent element setting information. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 103: Figure 3.14 Phase Time-Overcurrent Element 51P1T (With Directional Control Option)
(1 A nominal phase current inputs, IA, IB, IC) Curve Timing: ±1.50 cycles and ±4% of cure time for currents between (and including) 2 and 30 multiples of pickup SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 104: Table 3.3 Phase Time-Overcurrent Element (Maximum Phase) Logic Outputs
(0) to the pickup comparator: = 0 A (effective) < pickup setting 51P1P Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 105: Directional Control Option
Refer to Figure 3.14. control equation torque control settings (e.g., 51P1TC) cannot be set OGIC directly to logical 0. The following are setting examples of SEL control OGIC equation torque control setting 51P1TC for phase time-overcurrent element 51P1T. SEL-351S Relay...
Page 106: Reset Timing Details (51P1T Element Example)
Time-Overcurrent Elements NOTE: Some of the overcurrent 51P1TC = 1 Setting 51P1TC set directly to logical 1: element SEL control equation OGIC torque control settings are set directly Then only the corresponding directional control input to logical 1 (e.g., 51QTC = 1) for the factory default settings.
Page 107: Figure 3.16 Neutral Ground Time-Overcurrent Element 51N1T (With Directional Control Option)
Electromechanical Logical 0 Open 1 Cycle From Figure 4.18. Figure 3.16 Neutral Ground Time-Overcurrent Element 51N1T (With Directional Control Option) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 108: Table 3.4 Neutral Ground Time-Overcurrent Elements Settings
Similarly, setting 51N2RS is not available when setting 51N2C is set to a recloser curve. control equation torque control setting (e.g., 51N1TC) cannot be set directly to OGIC logical 0. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 109: Residual Ground Time-Overcurrent Elements
Electromechanical Logical 0 Open 1 Cycle From Figure 4.17. Figure 3.18 Residual Ground Time-Overcurrent Element 51G1T (With Directional Control Option) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 110: Table 3.5 Residual Ground Time-Overcurrent Elements Settings
(e.g., 51G1TC) cannot be set directly to OGIC logical 0. Section 9: Setting the Relay for additional time-overcurrent element setting information. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 111: Table 3.6 Negative-Sequence Time-Overcurrent Elements Settings
(1 A nominal phase current inputs, IA, IB, IC) 51QC curve type U1–U5 (US curves), C1–C5 (IEC curves), recloser curves (Table 9.5)—see Figure 9.1–Figure 9.20 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 112 Curve Timing: ±1.50 cycles and ±4% of curve time for currents between (and including) 2 and 30 multiples of pickup. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 113: Voltage Elements
Voltage VS cannot be used for 3V0 measurement and as a synchronism check input at the same time. Voltage Table 3.8–Table 3.10 list available voltage elements and the corresponding voltage inputs and settings ranges for SEL-351S Relays (also refer to Element Settings Figure 1.2). SEL-351S Relay...
Page 114: Table 3.8 Voltage Elements Settings And Settings Ranges (Wye-Connected Pts)
(Wye-Connected PTs) because they can assert or deassert due to noise when no signal is applied. Voltage Element Operating SEL recommends a minimum setting Pickup Setting/Range See Figure of 2.00 V. (Relay Word Bits) Voltage...
Page 115: Table 3.10 Voltage Elements Settings And Settings Ranges (Delta-Connected Pts)
0.00–300.00 V secondary 59BC2 59CA2 59QP Figure 3.24 0.00–120.00 V secondary 59Q2 59QP2 0.00–120.00 V secondary 59V1 59V1P 0.00–170.00 V secondary SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 116: Figure 3.21 Single-Phase And Three-Phase Voltage Elements (Wye-Connected Pts)
59A1 59B1 59C1 59P1P 3P59 59A2 59B2 59C2 59P2P Figure 5.6. Figure 3.21 Single-Phase and Three-Phase Voltage Elements (Wye-Connected PTs) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 117: Figure 3.22 Phase-To-Phase And Sequence Voltage Elements (Wye-Connected Pts)
To POTT Logic 59N1 59N1P 59N2 59N2P 59QP 59V1 59V1P Figure 5.6. Figure 3.22 Phase-to-Phase and Sequence Voltage Elements (Wye-Connected PTs) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 118: Figure 3.23 Phase-To-Phase Voltage Elements (Delta-Connected Pts)
To POTT Logic Word Voltages Bits 59QP 59Q2 59Q2P 59V1 59V1P Figure 5.6. Figure 3.24 Sequence Voltage Elements (Delta-Connected PTs) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 119: Figure 3.25 Channel Vs Voltage Elements (Wye- Or Delta-Connected Pts)
Pickup setting 59P1P is compared to the magnitudes of the individual phase voltages V , and V . The logic outputs in Figure 3.21 are the following Relay Word bits: SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 120: Voltage Elements Used In Pott Logic
(if the settings are applicable). If the weak-infeed portion of the POTT logic is not enabled, these voltage elements can be used in any desired application. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 121: Synchronism Check Elements
0.005–0.500 Hz 25ANG1 synchronism check element 0°–80° 25A1 maximum angle 25ANG2 synchronism check element 0°–80° 25A2 maximum angle SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 122: Setting Syncp
SYNCP setting for this example is 270 degrees, the amount that V lags V See SEL Application Guide 2002-02, Compensate for Constant Phase Angle Difference in Synchronism Check with the SEL-351 Relay Family for more information on setting SYNCP with an angle setting. Instruction Manual...
Page 123: Figure 3.26 Synchronism Check Voltage Window And Slip Frequency Elements
Maximum Slip Frequency 25SF q See bottom of Figure 3.27; Figure 3.27. Figure 3.26 Synchronism Check Voltage Window and Slip Frequency Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 124 Angle Difference Increasing Last Check of Setting OGIC 79CLS (w) From Figure 3.26; Figure 6.6. Figure 3.27 Synchronism Check Elements Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 125: System Frequencies Determined From Voltages
Inputs for delta-connected voltages), designated by setting SYNCP (e.g., if SYNCP = VB, then V Synchronism check voltage, from SEL-351S rear-panel voltage input VS For example, if V is designated as phase input voltage V (setting SYNCP =...
Page 126: System Rotation Can Affect Setting Syncp
ACB, then setting SYNCP = 240 degrees (V constantly lags V by 240°). See the SEL Application Guide 2002-02, Compensate for Constant Phase Angle Difference in Synchronism Check with the SEL-351 Relay Family for more information on setting SYNCP with an angle setting.
Page 127: Slip Frequency Calculator
V , and V (or V for delta) are healthy (59VP, 59VS, and 59VA asserted to logical 1) and the SEL control equation setting OGIC BSYNCH (Block Synchronism Check) is deasserted (= logical 0). The Slip Frequency Calculator output is: Slip Frequency = f –...
Page 128: Angle Difference Calculator
) is faster than the system (V ). If the enable into the slip frequency calculator in Figure 3.26 is disabled (e.g., SEL setting BSYNCH asserts OGIC because the breaker closes; BSYNCH = 52A + …), then both SSLOW = logical 0 and SFAST = logical 0, regardless of slip frequency.
Page 129: Angle Difference Example
V , resulting in derived voltage V *, as general illustrative purposes only. shown in Figure 3.28. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 130: Figure 3.28 Angle Difference Between V
(Angle Difference = 0 degrees). Then when the circuit breaker main contacts finally close, V is in phase with V . But in this case, Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 131: Synchronism Check Element Outputs
There might not be enough time to wait for this to happen. Thus, the “Angle Difference = 0 degrees” restriction is eased for this scenario. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 132: Synchronism Check Applications For Automatic Reclosing And Manual Closing
6.6). Refer to the top of Figure 6.5. If timer 79CLSD is set to zero (79CLSD = 0.00), SEL control equation setting 79CLS OGIC (Reclose Supervision) is checked only once to see if it is asserted to logical 1. If it is not asserted to logical 1, the relay goes to the Lockout State.
Page 133 A single output contact (e.g., OUT102 = CLOSE) can provide the close function for both automatic reclosing and manual closing (see Figure 6.1 logic output). SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 134: Frequency Elements
Relay Word Voltages Wye/Delta 27B81 VA/VAB Figure 3.31. Figure 3.30 Undervoltage Block for Frequency Elements (Group Setting VNOM = OFF) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 135: Figure 3.31 Levels 1-6 Frequency Elements
81D6P < NFREQ Underfrequency Figure 3.29 Figure 3.30; w 81D1–81D6 are for testing purposes only. Figure 3.31 Levels 1–6 Frequency Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 136: Table 3.12 Frequency Elements Settings And Settings Ranges
1 logic is enabled. 81D1 and 81D1T operate as overfrequency elements. 81D1 is used in testing only. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 137: Overfrequency Element Operation
Note that all six frequency elements are controlled by the same undervoltage element (Relay Word bit 27B81). For example, when group setting VNOM ≠ OFF, and Global setting PTCONN = WYE, Relay Word bit 27B81 asserts to SEL-351S Relay Instruction Manual Date Code 20080103...
Page 138: Other Uses For Undervoltage Element 27B81
If frequency elements are not being used, Relay Word bit 27B81 can still be used in other logic, with voltage setting 27B81P set as desired. Enable the frequency elements (setting E81≥1) and make setting 27B81P. Apply Relay Word bit 27B81 in the desired logic scheme, using SEL control OGIC equations.
Page 139: Voltage Sag, Swell, And Interruption Elements (Available In Firmware Version 7)
Voltage Sag, Swell, and Interruption Elements (Available in Firmware Version 7) The SEL-351S-7 has three types of elements to detect voltage disturbances. These elements detect voltage sags, swells, and interruptions (abbreviated as “VSSI” or “SSI”). These elements are enabled by group setting ESSI = Y and controlled by the VINT, VSWELL, and VSAG settings.
Page 140: Figure 3.33 Voltage Swell Elements
The factory default settings match the Interruption, Sag, and Swell definitions in IEEE Standard 1159-1995 “Classifications of RMS Variations.” Elements Settings Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 141: Table 3.13 Sag/Swell/Interruption Elements Settings (Must First Set Essi = Y)
This allows the SAG, SWELL, and INT elements voltage comparisons to be made with the reference Vbase locked at a “healthy” system voltage level. Once the disturbance is over and all of the SAGp, SWp, and INTp Relay Word bits deassert, and the FAULT SEL control equation OGIC setting deasserts, the thermal element for Vbase is unblocked.
Page 142: Figure 3.35 Vbase Tracking Example (Three-Phase Disturbance, Wye Connected)
Vbase thermal element to remain blocked. Vbase thermal element blocking by the FAULT Relay Word bit is programmable via SEL setting FAULT. SEL control equation setting OGIC...
Page 143: Vbase Tracking Range
SSI Reset Command After commissioning tests or other maintenance activities that have applied test voltages to the SEL-351S, the Vbase element may have locked onto a test voltage. Use the SSI R (reset) command once normal system voltages are restored on the voltage terminals. Powering up the relay automatically performs this reset.
Page 144: Power Elements (Available In Firmware Version 7)
N (none), 3P1, 3P2, 3P3, 3P4 (three-phase) {delta-connected EPWR = voltages} Each enabled power element can be set to detect real power or reactive power. With SEL control equations, the power elements provide a wide variety OGIC of protection and control applications. Typical applications are: ➤...
Page 145: Power Element Time Delay Setting Considerations
The four power element time delay settings (PWR1D–PWR4D) can be set to have no intentional delay for testing purposes. For protection applications involving the power element Relay Word bits, SEL recommends a minimum time delay setting of 5.00 cycles for general applications. The classical power calculation is a product of voltage and current, to determine the real and reactive power quantities.
Page 146 Open-delta connected voltages, without broken-delta 3V0 connection (VSCONN = VS): balanced conditions only. Timer: ±0.25 cycles and ±0.1% of setting Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 147: Single-Phase Power Element Calculations
= 1, 2, 3, or 4 Repeat for Phases B and C Figure 3.36 Single-Phase Power Elements Logic (+VARS Example Shown) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 148: Figure 3.37 Three-Phase Power Elements Logic
3.36, an example is shown with setting PWRnT = +VARS. This corresponds to the settings PWR1P (pickup) and PWR1T (type) in Figure 3.38. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 149: Figure 3.39 Sel-351S(B) Provides Var Control For 9600 Kvar Capacitor Bank
Figure 3.39, if the SEL-351S(C) trips circuit breaker 52-C for a fault in the capacitor bank, then a block close signal is sent from the SEL-351S(C) to the SEL-351S(B). This prevents the SEL-351S(B) from issuing an automatic close to circuit breaker 52-C.
Page 150 These block close signals seal in when the SEL-351S(C) trips circuit breaker 52-C for a fault in the capacitor bank. Automatic closing of circuit breaker 52-C with the SEL-351S(B) can then take place only after the block close signals are reset. The exact implementation of this block close logic requires an application note beyond the scope of this discussion.
Page 151: Figure 3.40 Per Unit Setting Limits For Switching 9600 Kvar Capacitor Bank On- And Off-Line
Convert the per unit VAR levels 0.3 and –1.2 to single-phase VA (voltamperes) secondary: 0.3 • 80.0 VA secondary (single-phase) = 24.0 VA secondary (single- phase) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 152: Settings For Three-Phase Power Elements
Figure 3.38). These elements are used in close logic in the SEL-351S(B) to automatically put the 9600 kVAR capacitor bank on-line. Resulting single-phase power elements PWRA2, PWRB2, and PWRC2 assert when the leading VAR level exceeds the –1.2 per unit VAR level (leading) for each respective phase (see Figure 3.40...
Page 153 This page intentionally left blank Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 154: Section 4: Loss-Of-Potential, Load Encroachment, And Directional Element Logic
(indicates circuit breaker open condition; see Figure 5.3). Positive-sequence voltage (V secondary). Positive-sequence current (A secondary). Zero-sequence current (A secondary). Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 155: Setting Vnom = Off
3V zero-sequence voltage that comes directly from voltage input VS, rather than the zero-sequence voltage calculated from SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 156: Setting Elop = Y
(as occurs with ELOP = Y or Y1) or enable overcurrent elements set direction forward (as occurs with ELOP = Y). Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 157: Load-Encroachment Logic
ZLIN (Load In Region) ZLOUT (Load Out Region) (180˚) (0˚) Example Settings (270˚) (—90˚) Figure 4.21. Figure 4.2 Load-Encroachment Logic SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 158: Table 4.2 Load-Encroachment Settings Ranges
800 MVA • (1/3) 267 MVA per phase 230 kV • (1/√3) = 132.8 kV line-to-neutral 267 MVA • (1/132.8 kV) • (1000kV/MV) = 2010 A primary Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 159: Convert Power Factors To Equivalent Load Angles
– – ° ° ° ° Setting NLAR = 180 + cos – (0.80) = 180 + 37 = 217 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 160: Figure 4.3 Migration Of Apparent Positive-Sequence Impedance For A Fault Condition
0 + logical 0 logical 0 Refer to Figure 3.14. To prevent phase time-overcurrent element 51P1T from OGIC ® operating for high load conditions, make the following SEL control equation torque control setting: !ZLOAD*!LOP + 50P6(=NOT[ZLOAD]*NOT[LOP] + 50P6) 51P1TC = As shown in Figure 4.2, load-encroachment logic is a positive-sequence...
Page 161 SEL-351S. Note that Application Guide AG93-10 discusses applying the load-encroachment feature to phase distance elements in the SEL-321. The SEL-351S does not have phase distance elements, but the principles and settings example are still applicable to the SEL-351S.
Page 162: Directional Control For Neutral Ground And Residual Ground Overcurrent Elements
➤ Wattmetric and incremental conductance directional elements (Petersen Coil grounded system) ➤ Zero-sequence voltage-polarized directional element (ungrounded/high-impedance grounded system) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 163: Figure 4.4 General Logic Flow Of Directional Control For Neutral Ground And Residual Ground Overcurrent Elements (Excluding Ungrounded/High-Impedance Grounded Systems)
Figure 4.5. Figure 4.4 General Logic Flow of Directional Control for Neutral Ground and Residual Ground Overcurrent Elements (Excluding Ungrounded/High-Impedance Grounded Systems) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 164: Table 4.3 Available Ground Directional Elements
No ground directional elements enabled All models (not accompanying settings ranges dependent on explanation. 32QGE neutral channel [IN]) 32QGE 32VE 32VE 32VE 32QGE Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 165 (Petersen Coil) setting 32QGE 32VE 32NE (Petersen Coil) 32VE 32NE (Petersen Coil) 32VE 32QGE 32NE (Petersen Coil) 32NE (Ungrounded/ High- Impedance) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 166: Table 4.5 Ground Directional Element Availability By Voltage Connection Settings
Best Choice Ground Directional logic control. See the discussion on setting ORDER in the Directional Control Settings on page 4.39. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 167: Internal Enables
I , then settings 50NFP and 50NRP are not adjusted, and just operate as: 50NFP base) 50NRP base) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 168: Zero-Sequence Voltage Sources
PT secondary. The global setting VSCONN selects the zero- sequence voltage source to be used by the affected directional elements. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 169: Directional Elements
F32W/R32W. Incremental conductance elements are used more for alarming purposes than for controlling overcurrent elements for tripping. Incremental conductance SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 170: Directional Element Routing
ELOP = Y. Refer to Figure 4.1 and accompanying text for more information on loss-of- potential. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 171 Subsection Directional Control Provided by Torque Control Settings on page 4.58 describes how to avoid this limitation for special cases. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 172: Figure 4.6 Internal Enables (32Qe And 32Qge) Logic For Negative-Sequence Voltage-Polarized Directional Elements
Figure 4.9, Table 4.3, and Table 4.4. Figure 4.6 Internal Enables (32QE and 32QGE) Logic for Negative-Sequence Voltage-Polarized Directional Elements Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 173: Figure 4.7 Internal Enables (32Ve And 32Ie) Logic For Zero-Sequence Voltage-Polarized And Channel In Current-Polarized Directional Elements
4.15, and Figure 4.16. Figure 4.7 Internal Enables (32VE and 32IE) Logic for Zero-Sequence Voltage-Polarized and Channel IN Current-Polarized Directional Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 174: Figure 4.8 Internal Enable (32Ne) Logic For Zero-Sequence Voltage-Polarized Directional Elements (Low-Impedance Grounded, Petersen Coil Grounded, And Ungrounded/High-Impedance Grounded Systems)
4.4. Figure 4.8 Internal Enable (32NE) Logic for Zero-Sequence Voltage-Polarized Directional Elements (Low-Impedance Grounded, Petersen Coil Grounded, and Ungrounded/High-Impedance Grounded Systems) Refer to the setting ideas for SEL setting E32IV, near the back of this OGIC section, especially if setting ORDER = U (ungrounded or high-impedance grounded system).
Page 175: Figure 4.9 Negative-Sequence Voltage-Polarized Directional Element For Neutral Ground And Residual Ground Overcurrent Elements
Table 4.4; Figure 4.15 Figure 4.16. Figure 4.9 Negative-Sequence Voltage-Polarized Directional Element for Neutral Ground and Residual Ground Overcurrent Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 176: Figure 4.10 Zero-Sequence Voltage-Polarized Directional Element
VSCONN = VS and PTCONN = WYE) or a measured value (when global setting VSCONN = 3V0). See Zero-Sequence Voltage Sources on page 4.15. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 177: Figure 4.11 Channel In Current-Polarized Directional Element
Nominal Rating) • (Phase Channels Nominal Rating) • (0.05) From Table 4.4; Figure 4.15 Figure 4.16. Figure 4.11 Channel IN Current-Polarized Directional Element SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 178: Figure 4.12 Zero-Sequence Voltage-Polarized Directional Element (Low-Impedance Grounded Systems)
Settings VSCONN = VS and PTCONN = WYE) or a measured value (when Global Setting VSCONN = 3V0). See Zero-Sequence Voltage Sources on page 4.15 earlier in this section. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 179: Figure 4.13 Wattmetric And Incremental Conductance Directional Elements (Petersen Coil Grounded Systems)
Settings VSCONN = VS and PTCONN = WYE) or a measured value (when Global Setting VSCONN = 3V0). See Zero-Sequence Voltage Sources on page 4.15 Directional Control Settings on page 4.39. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 180: Figure 4.14 Zero-Sequence Voltage-Polarized Directional Element (Ungrounded/High-Impedance Grounded Systems)
Settings VSCONN = VS and PTCONN = WYE) or a measured value (when Global Setting VSCONN = 3V0). See Zero-Sequence Voltage Sources on page 4.15. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 181: Figure 4.15 Routing Of Directional Elements To Residual Ground Overcurrent Elements
4.13, and Figure 4.14; Figure 4.18; o from Figure 9.21. Figure 4.16 Routing of Direction Elements to Neutral Ground Overcurrent Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 182: Figure 4.17 Direction Forward/Reverse Logic For Residual Ground Overcurrent Elements
32GR From Figure 4.15; Figure 3.18 Figure 3.19; Figure 3.10. Figure 4.17 Direction Forward/Reverse Logic for Residual Ground Overcurrent Elements Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 183: Figure 4.18 Direction Forward/Reverse Logic For Neutral Ground Overcurrent Elements
32NR From Figure 4.16; Figure 3.16 Figure 3.17; Figure 3.8. Figure 4.18 Direction Forward/Reverse Logic for Neutral Ground Overcurrent Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 184: Directional Control For Negative-Sequence And Phase Overcurrent Elements
Internal Enables Refer to Figure 4.6 Figure 4.19. The internal enable 32QE corresponds to the negative-sequence voltage- polarized directional element. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 185 ELOP = Y. Refer to Figure 4.1 and accompanying text for more information on loss-of- potential. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 186: Direction Forward/Reverse Logic
Directional Control Provided by Torque Control Settings on page 4.58 describes how to avoid this limitation for special cases. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 187: Figure 4.20 Negative-Sequence Voltage-Polarized Directional Element For Negative-Sequence And Phase Overcurrent Elements
If Z2R Setting < 0, Reverse Threshold = 1.25 • Z2R + 0.25 • Figure 4.22. Figure 4.20 Negative-Sequence Voltage-Polarized Directional Element for Negative-Sequence and Phase Overcurrent Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 188: Figure 4.21 Positive-Sequence Voltage-Polarized Directional Element For Phase Overcurrent Elements
Figure 4.2; from Figure 4.6; from Figure 4.1; Figure 4.22. Figure 4.21 Positive-Sequence Voltage-Polarized Directional Element for Phase Overcurrent Elements Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 189: Figure 4.22 Routing Of Directional Elements To Negative-Sequence And Phase Overcurrent Elements
4.20; from Figure 4.21; Figure 4.23; Figure 4.24. Figure 4.22 Routing of Directional Elements to Negative-Sequence and Phase Overcurrent Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 190: Figure 4.23 Direction Forward/Reverse Logic For Negative-Sequence Overcurrent Elements
DIR4 = R Reverse Reverse 32QR From Figure 4.22; Figure 3.20; Figure 3.12. Figure 4.23 Direction Forward/Reverse Logic for Negative-Sequence Overcurrent Elements Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 191: Figure 4.24 Direction Forward/Reverse Logic For Phase Overcurrent Elements
Reverse 32PR From Figure 4.22; Figure 3.14 Figure 3.15; Figure 3.3. Figure 4.24 Direction Forward/Reverse Logic for Phase Overcurrent Elements SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 192: Directional Control Settings
E32 = AUTO. They have to be set by the user, whether setting E32 = AUTO or Y. These settings are: DIR1, DIR2, DIR3, DIR4, ORDER, 50P32P, 50NFP, 50NRP, a0N, 59RES, 32WFP, 32WRP, 32WD, and E32IV (E32IV is a SEL OGIC setting) All these settings are explained in detail in the remainder of this subsection.
Page 193: Table 4.6 Directional Control Settings Not Made For Particular Conditions
(Figure 3.8) 67G4 (Figure 3.10) 67Q4 (Figure 3.12) 67P4T (Figure 3.3) 67N4T (Figure 3.8) 67G4T (Figure 3.10) 67Q4T (Figure 3.12) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 194: Order-Ground Directional Element Priority Setting
DIRn (n = 1–4) settings to be directionally controlled (see Figure 4.17 Figure 4.18). Another example, if setting: ORDER = Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 195: Petersen Coil Considerations For Setting Order
Then, the residual ground elements (Figure 4.17) are controlled by the directional control logic and provide directional protection for higher ground fault currents. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 196: Table 4.8 Z Constant For Z2R Setting
Z2F and Z2R in the negative-sequence impedance network, though the preceding method of automatically making settings Z2F and Z2R usually suffices. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 197 1/10 of the positive-sequence current (I ) magnitude in order for the negative-sequence voltage-polarized directional elements to be enabled | > 0.1 • |I SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 198: K2 Set Automatically
0.2 • |I |). Again, this presumes at least one of the internal enables 32VE or 32IE is asserted. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 199 (system unbalance), which circulates due to line asymmetries, CT saturation during three-phase faults, etc. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 200 Z0R must be greater in value than setting Z0F by 0.1 Ω secondary. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 201: Z0F And Z0R Set Automatically
Deriving Z0F and Z0R Settings when needed (effectively, Z0F•CTRN/CTR and Z0R•CTRN/ Figure 4.25 shows the voltage and current polarity for an SEL-351S in a zero- CTR). See Internal Enables on page 4.14. sequence impedance network (the same approach can be instructive for negative-sequence impedance analysis, too).
Page 202: Figure 4.25 Zero-Sequence Impedance Network And Relay Polarity
0.2 A nominal neutral channel (IN), then settings 50NFP and 50NRP are not made or displayed. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 203 It keeps the elements from operating for zero-sequence current (system unbalance), which circulates due to line asymmetries, etc. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 204 VA, VB, and VC. See Settings Considerations for Petersen Coil Grounded Systems on page 4.54 for an example. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 205: Figure 4.27 Zero-Sequence Impedance Network For Ground Fault On Feeder 1
Relay 2 Relay 1 0(1) Feeder 1 =0 (Tuned System) Figure 4.27 Zero-Sequence Impedance Network for Ground Fault on Feeder 1 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 206: Figure 4.28 Wattmetric Element Operation For Ground Fault On Feeder 1
32WRP in the wattmetric plane (setting 32WFP is put on the “negative” side of the wattmetric plane: i.e., “–32WFP”; see Figure 4.13). Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 207: 32Wd-Wattmetric Delay (Petersen Coil Grounded System)
4.10. Thus, when the zero-sequence voltage pickup for the wattmetric element is known in terms of the system primary voltage level, the required calculation for setting SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 208 This pre-scaling makes the 32WFP and 32WRP settings match the scaling the relay does when it converts the VS value into the VA, VB, VC voltage base. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 209: Table 4.10 Affect Of Global Settings Vsconn And Ptconn On Petersen Coil Directional
For most applications, set E32IV directly to logical 1: 1 (numeral 1) E32IV = SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 210: Ungrounded/High-Impedance Grounded System Considerations For Setting E32Iv
E32IV should be OGIC deasserted to logical 0. In this example, connect a circuit breaker auxiliary contact from the isolating circuit breaker to the SEL-351S: IN106 (52a connected to optoisolated input IN106) E32IV = Almost any desired control can be set in SEL...
Page 211: Directional Control Provided By Torque Control Settings
32GF (direction forward; see 51G1TC = Figure 3.18) This is just one example of using SEL control equation torque control OGIC settings to make overcurrent elements directional (forward or reverse) or nondirectional. This example shows only Level 1 overcurrent elements (controlled by level direction setting DIR1).
Page 212: Trip And Target Logic
Section 5 Trip and Target Logic Trip Logic OGIC ® The trip logic in Figure 5.1 provides flexible tripping with SEL control equation settings: TRCOMM—Communications-Assisted Trip Conditions. Setting TRCOMM is supervised by communications-assisted trip logic. See Communications-Assisted Trip Logic—General Overview on page 5.11...
Page 213: Figure 5.1 Trip Logic
OR-1 gate. The output of OR-1 gate asserts Relay Word bit TRIP to logical 1, regardless of other trip logic conditions. It also is routed into the Minimum Trip Duration Timer (setting TDURD). SEL-351S Relay Instruction Manual Date Code 20080103...
Page 214: Figure 5.2 Minimum Trip Duration Timer Operation (See Bottom Of Figure 5.1)
Relay Word bit to logical 0 if test conditions are such that setting ULTR does not assert to logical 1 to automatically deassert the TRIP Relay Word bit instead. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 215: Section 5: Trip And Target Logic Trip Logic
OGIC Setting TR) gate and follows into the “seal-in and unlatch” logic for Relay Word bit TRIP. The factory settings for the trip logic SEL control equation settings are: OGIC TR = 51P1T + 51G1T + 67P1 + PB10 + OC (trip conditions)
Page 216: Unlatch Trip With 52A Circuit Breaker Auxiliary Contact
TRIP Relay Word bit deasserts to logical 0. Program an Output In the factory settings, the resultant of the trip logic in Figure 5.1 is routed to output contact OUT101 with the following SEL control equation setting: OGIC Contact for Tripping TRIP OUT101 = If more than one TRIP output contact is needed, program other output contacts with the TRIP Relay Word bit.
Page 217 Trip and Target Logic Trip Logic TRIP Used in Other Besides operating a trip output contact (e.g., OUT101 = TRIP), the TRIP Relay Word bit is used in a number of other factory-default SEL control OGIC Settings equations settings: ULCL = TRIP + …...
Page 218 (51G2) to the event report trigger conditions setting (ER = … + /51G2). A rising edge operator (/) is added on front of the element (see Appendix G: Setting SEL OGIC Control Equations for more explanation on rising edge operators).
Page 219: Switch-Onto-Fault (Sotf) Trip Logic
Refer to the switch-onto-fault trip logic in Figure 5.1 (middle of figure). The SOTF trip logic permits tripping if both the following occur: ➤ An element asserts in SEL control equation trip setting OGIC TRSOTF ➤ Relay Word bit SOTFE is asserted to logical 1 Relay Word bit SOTFE (the output of the SOTF logic) provides the effective time window for an element in trip setting TRSOTF (e.g., TRSOTF = 50P2) to...
Page 220: Circuit Breaker Operated Switch-Onto-Fault Logic
3PO = logical 0 (circuit breaker closed) Determining Three-Pole Open Condition Without Circuit Breaker Auxiliary Contact If a circuit breaker auxiliary contact is not connected to the SEL-351S Relay, control equation setting 52A is set: OGIC 0 (numeral 0)
Page 221: Switch-Onto-Fault Logic Output (Sotfe)
Circuit breaker closure is detected by monitoring the dc close bus. This is accomplished by wiring an optoisolated input on the SEL-351S (e.g., IN105) to the dc close bus. When a manual close or automatic reclosure occurs, optoisolated input IN105 is energized.
Page 222: Communications-Assisted Trip Logic-General Overview
Trip and Target Logic 5.11 Communications-Assisted Trip Logic—General Overview Communications-Assisted Trip Logic— General Overview The SEL-351S includes communications-assisted tripping schemes that provide unit-protection for transmission lines with the help of communications. No external coordination devices are required. Level 1 (1) Level 3 (1)
Page 223: Trip Setting Trcomm
POTT, PUTT, DCUB, and DCB communications-assisted tripping schemes are explained in subsections that follow. Trip Setting TRCOMM The POTT, PUTT, DCUB, and DCB tripping schemes use SEL control OGIC equation trip setting TRCOMM for those tripping elements that are supervised...
Page 224: Trip Setting Dtt
Function IN102 = PT PT1 = IN102 (received permissive trip) In the above SEL-351S setting example, Relay Word bit IN102 is set in the control equation. Optoisolated input IN102 is wired to a PT1 SEL OGIC communications equipment receiver output contact. Relay Word bit IN102 can also be used in other SEL control equation in the SEL-351S.
Page 225 The SEL-321 handles trip unlatching with setting TULO. The SEL-351S handles trip unlatching with SEL control equation setting ULTR. OGIC The SEL-321 has single-pole trip logic. The SEL-351S does not have single- pole trip logic. Using M ITS ® The M...
Page 226: Permissive Overreaching Transfer Trip (Pott) Logic
Provides a secure means of tripping for weak- and/or zero- infeed line terminals Use Existing SEL-321 Use the existing SEL-321 POTT application guide (AG95-29) to help set up the SEL-351S in a POTT scheme (see preceding subsection Communications- POTT Application Assisted Trip Logic—General Overview on page 5.11...
Page 227: Figure 5.5 Permissive Input Logic Routing To Pott Logic
Setting ECOMM = DCUB2 Figure 5.6. Figure 5.5 Permissive Input Logic Routing to POTT Logic Also note that SEL control equation setting PT1 in Figure 5.7 is routed to OGIC control Relay Word bit PTRX if enable setting ECOMM = POTT. Relay Word...
Page 228: Ekey-Echo Key Permissive Trip
OUT105 (see Figure 5.9): OUT107 = EKEY—Echo Key Permissive Trip Permissive trip signal keyed by Echo logic (used in testing). Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 229: Figure 5.6 Pott Logic
Permissive Overreaching Transfer Trip (POTT) Logic Figure 4.1; Figure 5.5; Table 3.8; Table 3.10; Figure 5.1. Figure 5.6 POTT Logic SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 230: Figure 5.7 Permissive Input Logic Routing To Trip Logic
OUT105 = KEY) could be connected in parallel to both transmitter inputs (TX) on the communication equipment in Figure 5.9. Then output contact OUT107 can be used for another function. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 231: Figure 5.8 Sel-351S Connections To Communications Equipment For A Two-Terminal Line Pott Scheme
OUT105 (Partial) IN104 OUT105 = KEY PT1 = IN104 To / From Remote Terminal (—) Figure 5.8 SEL-351S Connections to Communications Equipment for a Two-Terminal Line POTT Scheme SEL-351 OUT105 OUT107 (partial) IN104 IN106 OUT105 = KEY PT1 = IN104 * IN106...
Page 232: Directional Comparison Unblocking (Dcub) Logic
DCUB schemes are typically implemented with FSK (frequency shift carrier) or analog microwave as the communications medium. Use Existing SEL-321 Use the existing SEL-321 DCUB application guide (AG96-19) to help set up the SEL-351S in a DCUB scheme (see preceding subsection DCUB Application Communications-Assisted Trip Logic—General Overview on page 5.11...
Page 233 LOG1, LOG2—Loss-of-Guard Signal(s) In two-terminal line DCUB applications (setting ECOMM = DCUB1), a loss- of-guard signal is received from one remote terminal. One optoisolated input on the SEL-351S (e.g., input IN105) is driven by a communications equipment receiver output (see Figure 5.12).
Page 234 ECOMM = DCUB1 or DCUB2. Relay Word bit UBB is the unblock block input into the trip logic in Figure 5.1. When UBB asserts to logical 1, tripping is blocked. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 235: Figure 5.10 Dcub Logic
5.24 Trip and Target Logic Directional Comparison Unblocking (DCUB) Logic Figure 5.11; Figure 5.7. Figure 5.10 DCUB Logic SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 236: Figure 5.11 Unblocking Block Logic Routing To Trip Logic
Remote (RX) (RX) Terminal (—) Figure 5.12 SEL-351S Connections to Communications Equipment for a Two-Terminal Line DCUB Scheme (Setting ECOMM = DCUB1) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 237: Figure 5.13 Sel-351S Connections To Communications Equipment For A Three-Terminal Line Dcub Scheme (Setting Ecomm = Dcub2)
(RX) (RX) Terminal 1 Terminal 2 (—) Figure 5.13 SEL-351S Connections to Communications Equipment for a Three-Terminal Line DCUB Scheme (Setting ECOMM = DCUB2) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 238: Directional Comparison Blocking (Dcb) Logic
➤ Extends the received block signal by a settable time. Use Existing SEL-321 Use the existing SEL-321 DCB application guide (AG93-06) to help set up the SEL-351S in a DCB scheme (see preceding subsection Communications- DCB Application Assisted Trip Logic—General Overview on page 5.11...
Page 239: Dstrt-Directional Carrier Start
See Output Contacts on page 7.32 for more information on output contacts. DSTRT—Directional Carrier Start Program an output contact for directional carrier start. For example, SEL OGIC control equation setting OUT105 is set: OUT105 = DSTRT Output contact OUT105 drives a communications equipment transmitter input...
Page 240: Btx-Block Trip Extension
OUT106 = STOP) can be connected in parallel to both STOP inputs on the 5.16. Then output contact OUT208 can be communication equipment in Figure used for another function. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 241: Figure 5.15 Sel-351S Connections To Communications Equipment For A Two-Terminal Line Dcb Scheme
RX (receive) output contacts from each remote terminal connected to separate inputs IN104 and IN106 on the SEL-351S. The inputs operate as block trip receive inputs for the two remote terminals and are used in the SEL...
Page 242: Figure 5.16 Sel-351S Connections To Communications Equipment For A Three-Terminal Line Dcb Scheme
Terminal 1 (TX) (TX) (TX) (TX) (—) Figure 5.16 SEL-351S Connections to Communications Equipment for a Three-Terminal Line DCB Scheme Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 243: Front-Panel Target Leds
LEDs. The functions and associated settings for these target LEDs are given in Table 5.1. Table 5.1 SEL-351S Front-Panel Target LED Definitions and Settings LED Front- LED Logic Latch In On Panel Input (SEL...
Page 244: Figure 5.17 Programmable Front-Panel Target Led Logic
LEDs A, B, and C always latch in on trip, if the corresponding phase is involved with the fault. LEDs A, B, and C reset (unlatch) similar to the other target LEDs set to latch in on trip. SEL control equation FAULT has to be picked up...
Page 245 5.37. OGIC LED14 (COMM) and LED15 (SOTF) Refer to the top part of Figure 5.1. If overcurrent elements are set in SEL OGIC control equations TRCOMM or TRSOTF and a trip results from either associated logic path: ➤ Relay Word bit COMMT asserts (LED14 = COMMT) ➤...
Page 246 ➤ LED16 = 67P1 ➤ LED17 = 51P1T + 51G1T LED18 (81) If frequency element 81D1T is set to trip (e.g., SEL control equation TR OGIC = … + 81D1T) and a trip results from 81D1T: ➤ LED18 = 81D1T then LED18 (81) illuminates at the rising edge of trip.
Page 247: Target Reset/Lamp Test Front-Panel Pushbutton
SV8 and in turn deasserting DP3). Thus, front-panel rotating default displays can be easily reset along with the front-panel targets by pushing the {TARGET RESET} pushbutton. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 248 Vbase. See subsection Voltage Sag, Swell, and Interruption Elements (Available in Firmware Version 7) on page 3.54. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 249 This page intentionally left blank Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 250: Close And Reclose Logic
(e.g., manual close initiation via serial port or optoisolated inputs). If automatic reclosing is not needed, but the SEL-351S Relay is to close the circuit breaker for other close conditions (e.g., manual close initiation via serial port or optoisolated inputs), then this is the only OGIC ®...
Page 251: Section 6: Close And Reclose Logic Close Logic
Close and Reclose Logic Close Logic Close Logic The close logic in Figure 6.1 provides flexible circuit breaker closing/ automatic reclosing with SEL control equation settings: OGIC (breaker status—also see Figure 6.4) (close conditions other than automatic reclosing—also Figure 6.2)
Page 252: Unlatch Close
➤ The Close Failure Timer times out (Relay Word bit CF = 1) The Close Failure Timer is inoperative if setting CFD = OFF. Factory Settings The factory settings for the close logic SEL control equation settings are: OGIC IN101...
Page 253: Figure 6.2 Close Conditions-Other Than Auto-Reclosing
CLOSE command (Relay Word bit CC) pulse for only one processing interval (one quarter cycle) when activated. Also, in Figure 6.1, SEL control equation OGIC setting CL is rising edge triggered. Thus, if the {LOCK} operator control (Relay Word bit LT4) or the {HOT LINE TAG} operator control (Relay Word bit LT5) in Figure 6.2...
Page 254: Figure 6.3 Unlatch Close Conditions
52A = !IN101 52b auxiliary contact wired to input IN101 then if breaker status is used in other SEL control equations, it can be OGIC entered as 52A—the user does not have to enter IN101 (for a 52a) or !IN101 (for a 52b).
Page 255: Figure 6.4 Breaker Status Determination
Figure 6.4 Breaker Status Determination Program an Output In the factory settings, the resultant of the close logic in Figure 6.1 is routed to output contact OUT102 with the following SEL control equation: OGIC Contact for Closing OUT102 = CLOSE Output Contacts on page 7.32...
Page 256: Reclose Supervision Logic
Limit Timer times out. 79RI 79CLS, to assert to logical 1) Figure 6.1. Figure 6.5 Reclose Supervision Logic (Following Open-interval Time-Out) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 257: Figure 6.6 Reclose Supervision Limit Timer Operation (Refer To Bottom Of Figure 6.5)
79CLSD times out. Figure 6.6 Reclose Supervision Limit Timer Operation (Refer to Bottom of Figure 6.5) Settings and General Figure 6.5 contains the following SEL control equation setting: OGIC Operation 79CLS (reclose supervision conditions—checked after reclosing relay open-interval time-out) and setting:...
Page 258: For A Few, Unique Applications
Reclose Supervision Logic With this setting, the logic in the top of Figure 6.5 is operative. When an open interval times out, the SEL control equation reclose supervision setting OGIC 79CLS is checked just once. If 79CLS is asserted to logical 1 at the instant of an open-interval time-out,...
Page 259 79CLS is checked indefinitely until one of the other above unlatch conditions comes true. The unlatching of the sealed-in reclosing relay open-interval time-out condition by the assertion of SEL control equation setting 79CLS OGIC indicates successful propagation of a reclosing relay open-interval time-out...
Page 260: Additional Settings
6.7. Example 1 SEL-351S relays are installed at both ends of a transmission line in a high- speed reclose scheme. After both circuit breakers open for a transmission line fault, the SEL-351S(1) recloses circuit breaker 52/1 first, followed by the SEL-351S(2) reclosing circuit breaker 52/2, after a synchronism check across circuit breaker 52/2.
Page 261: Additional Settings Example
0 (numeral 0) The SEL-351S(2) starts open-interval timing after circuit breaker 52/1 at the remote end has reenergized the line. The SEL-351S(2) has to see Bus 2 hot, transmission line hot, and in synchronism across open circuit breaker 52/2 for open-interval timing to begin.
Page 262 (no more open intervals left; see Figure 6.9 Table 6.3), the reclosing relay is then driven to the Lockout State. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 263: Reclosing Relay
Reclosing Relay Reclosing Relay Note that input: Reclosing Relay Open-interval Time-Out Figure 6.5 is the logic input that is qualified by SEL control equation OGIC setting 79CLS, and then propagated on to the close logic in Figure 6.1 automatically reclose a circuit breaker. The explanation that follows in this...
Page 264: Table 6.1 Relay Word Bit And Front-Panel Correspondence To Reclosing Relay States
States and General Operation Reset State The circuit breaker has been closed for a qualifying reset time. The SEL-351 is ready to go through an automatic reclosing sequence in the reclose cycle state if the circuit breaker trips open and reclose initiation is successful.
Page 265: Reclosing Relay States And Settings/Setting Group Changes
The shot counter is equal to or greater than the last shot at time of reclose initiation (e.g., all automatic reclosing attempts are unsuccessful—see Figure 6.9). ➤ Reclose initiation is unsuccessful because of SEL control OGIC equation setting 79RIS [see Reclose Initiate and Reclose Initiate Supervision Settings (79RI and 79RIS, Respectively) on page 6.21].
Page 266: Defeat The Reclosing Relay
For example, if 52A = IN101, a 52a circuit breaker auxiliary contact is connected to input IN101. If the reclosing relay does not exist, the close logic still operates, allowing closing to take place via SEL control equation OGIC setting CL (close conditions, other than automatic reclosing).
Page 267: Open-Interval Timers
3 time, which is set to zero (79OI3 = 0.00): 30.00 79OI1 = SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 268: Observe Shot Counter Operation
Setting 79RSLD: Qualifies closures when the relay is in the Lockout State. These closures are usually manual closures. These manual closures can originate external to the relay, via the CLOSE command, or via the SEL control OGIC equation setting CL (see Figure 6.1).
Page 269: Monitoring Open-Interval And Reset Timing
The shot counter also increments for sequence coordination operation. The shot counter can increment beyond the last shot for sequence coordination [see Sequence Coordination Setting (79SEQ) on page 6.28]. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 270: Reclose Initiate And Reclose Initiate Supervision Settings
SEL-351S to successfully initiate reclosing and start timing on the first open-interval. The SEL-351S is not yet in the reclose cycle state (79CY = logical 0) at the instant of the first trip.
Page 271: Other Settings Considerations
Close and Reclose Logic Reclosing Relay If a flashover occurs in a circuit breaker tank during an open-interval (circuit breaker open and the SEL-351S calls for a trip), the SEL-351S goes immediately to lockout. Additional Settings Example The preceding settings example initiates open-interval timing on rising edge of the TRIP Relay Word bit.
Page 272: Drive-To-Lockout And Drive-To-Last Shot Settings (79Dtl And 79Dls, Respectively)
79RI [reclose initiation] discussion). Then the drive-to-lockout condition overlaps reclose initiation and the SEL-351S stays in lockout after the breaker trips open. When 79DLS = logical 1, the reclosing relay goes to the last shot, if the shot...
Page 273: Figure 6.10 Factory-Default Drive-To-Lockout Logic
79RI and 79RIS), the relay increments the 79STL, Respectively) shot counter to the next shot and then loads the open-interval time SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 274: Table 6.5 Example Open-Interval Time Settings
Table 6.5 Example Open-Interval Time Settings Corresponding Corresponding Open-Interval Shot Relay Word Bit Open Interval Time Setting 79OI1 30 cycles 79OI2 600 cycles Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 275: Figure 6.11 Reclose Blocking For Islanded Generator
79SKP = logical 0, regardless of Relay Word bit 50P2. Additional Settings Example 2 If the SEL-351S is used on a feeder with a line-side independent power producer (cogenerator), the utility should not reclose into a line still energized by an islanded generator.
Page 276 51P1 or 51G1 is picked up, regardless of the reclosing relay state. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 277: Sequence Coordination Setting (79Seq)
(e.g., line recloser—see Figure 6.12) has operated to clear a fault. Incrementing the shot counter keeps the SEL-351S “in step” with the downstream device, as is shown in the following Additional Settings Example 1 on page 6.28 Additional Settings Example 2 on page 6.30.
Page 278: Figure 6.13 Operation Of Sel-351S Shot Counter For Sequence Coordination With Line Recloser
Fault occurs beyond line recloser; w fault cleared by line recloser fast curve; e line recloser recloses into fault; r fault cleared by line recloser slow curve. Figure 6.13 Operation of SEL-351S Shot Counter for Sequence Coordination With Line Recloser (Additional Settings Example 1)
Page 279 6.30 Close and Reclose Logic Reclosing Relay If the SEL-351S is in the Reset State (79RS = logical 1) and then a permanent fault beyond the line recloser occurs (fault current I Figure 6.12), the line recloser fast curve operates to clear the fault. The SEL-351S also sees the fault.
Page 280: Reclose Supervision Setting (79Cls)
Refer to Figure 6.14. If the SEL-351S is in the Reset State (79RS = logical 0) with the shot counter reset (shot = 0; SH0 = logical 1) and then a permanent fault beyond the line recloser occurs (fault current I Figure 6.12), the line recloser fast curve...
Page 281 This page intentionally left blank Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 282: Inputs, Outputs, Timers, And Other Control Logic
The above items are all the logic input/output of the relay. They are combined OGIC ® with the overcurrent, voltage, frequency, and reclosing elements in SEL control equation settings to realize numerous protection and control schemes. Relay Word bits and SEL...
Page 283: Optoisolated Inputs
(e.g., optoisolated inputs IN101–IN106 in Figure 7.1) for the different SEL-351S Relay models. The figures show examples of energized and de- energized optoisolated inputs and corresponding Relay Word bit states. To assert an input, apply rated control voltage to the appropriate terminal pair (see Figure 1.2–Figure 1.4...
Page 284: Figure 7.2 Example Operation Of Optoisolated Inputs In201-In208-Extra I/O Board
1/4-cycle [e.g., if setting IN105D = 0.13, internally the timer runs at the nearest 1/16-cycle: 2/16-cycles (2/16 = 0.1250)]. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 285: Input Functions
Note that Figure 7.3 corresponds to Figure 7.29. Input IN101 Relay Word bit IN101 is used in the factory settings for the SEL control OGIC equation circuit breaker status setting: 52A = IN101 Connect input IN101 to a 52a circuit breaker auxiliary contact.
Page 286 Inputs, Outputs, Timers, and Other Control Logic Optoisolated Inputs Input IN102 Relay Word bit IN102 is used in this example for the SEL control OGIC equation drive-to-lockout setting: !IN102 + ... [=NOT(IN102) + ...] 79DTL = Connect input IN102 to a reclose enable switch.
Page 287: Local Control Switches
Relay Word bit LBn (n = 1–16), called a local bit. The local control switch logic in Figure 7.4 repeats for each local bit LB1–LB16. Use these local bits in SEL control OGIC equations. For a given local control switch, the local control switch positions are enabled by making corresponding label settings.
Page 288: Table 7.2 Correspondence Between Local Control Switch Types And Required Label Settings
Section 9: Setting the Relay). The local bit associated with this disabled local control switch is then fixed at logical 0. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 289: Figure 7.8 Configured Manual Trip Switch Drives Local Bit Lb3
Inputs, Outputs, Timers, and Other Control Logic Local Control Switches Settings Examples Local bits LB3 and LB4 are used in a few example SEL control equation OGIC settings for manual trip and close functions. Their corresponding local control switch position labels are set to configure the switches as OFF/...
Page 290 (i.e., the corresponding label settings are set), the corresponding local bit starts out at logical 0. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 291: Remote Control Switches
The outputs of the remote control switches in Figure 7.10 are Relay Word bits RBn (n = 1 to 16), called remote bits. Use these remote bits in SEL OGIC control equations. Any given remote control switch can be put in one of the following three...
Page 292 CON Command (Control Remote Bit) on page 10.40. Appendix G: Setting SEL Control Equations for more details on OGIC using the rising and falling edge operators in SEL control equations. OGIC Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 293: Latch Control Switches
(e.g., SCADA, RTU). Reset Input Input Output Contact Traditional Latching Relay (—) Figure 7.11 Traditional Latching Relay The sixteen (16) latch control switches in the SEL-351S provide latching relay type functions. Relay OGIC Word Setting Bits SETn (Set)
Page 294: Latch Control Switch Application Ideas
SEL-351S. Reclosing Relay Use a latch control switch to enable/disable the reclosing relay in the SEL-351S. In this example, a SCADA contact is connected to optoisolated Enable/Disable input IN104. Each pulse of the SCADA contact changes the state of the Setting Example reclosing relay.
Page 295: Feedback Control
Note in Figure 7.14 that the latch control switch output (latch bit LT1) is effectively used as feedback for SEL control equation settings SET1 and OGIC RST1. The feedback of latch bit LT1 “guides” input IN104 to the correct latch control switch input.
Page 296: Figure 7.15 Latch Control Switch Operation Time Line
IN104D. Thus, when IN104 using Relay Word bit IN104 in Figure 7.12 Figure 7.13 associated SEL control equations, OGIC keep in mind any time delay produced by the input pickup/dropout debounce /IN104 timer IN104D.
Page 297: Figure 7.16 Time Line For Reset Of Latch Bit Lt2 After Active Setting Group Change
Word bits SG1–SG6 indicate the active setting Group 1–6, respectively (see Change Table 7.3). For example, when setting Group 4 becomes the active setting group, latch bit LT2 should be reset. Make the following SEL control equation settings in OGIC setting Group 4: SV7 = !SV7T + ...
Page 298: Figure 7.17 Latch Control Switch (With Time Delay Feedback) Controlled By A Single Input To Enable/Disable Reclosing
Exceeding the limit can result in an EEPROM self-test failure. An average of 70 cumulative latch bit state changes per day can be made for a 25-year relay service life. This requires that SEL control equation settings SETn and RSTn for OGIC any given latch bit LTn (n = 1–16;...
Page 299: Figure 7.18 Latch Control Switch (With Time Delay Feedback) Operation Time Line
No Effect Processing Interval RST1 = /IN104*SV6T No Effect Figure 7.18 Latch Control Switch (With Time Delay Feedback) Operation Time Line SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 300: Multiple Setting Groups
SS1–SS6 have priority over the serial port OGIC GROUP command and the front-panel {GROUP} pushbutton in selecting the active setting group. Operation of SEL Each setting group has its own set of SEL control equation settings SS1– OGIC OGIC SS6.
Page 301: Push Button
LB16), remote bit (RB1–RB16), and latch bit (LT1–LT16) states are retained during a active setting group change]. The output contacts do not change state Change until the relay enables in the new settings group and the SEL control OGIC equations are processed to determine the output contact status for the new group.
Page 302: Table 7.5 Sel Ogic Control Equation Settings For Switching Active Setting Group Between Setting Groups 1 And
Group 4 ... pulse to activate setting Group 1 ... pulse to activate setting Group 4 ... pulse to activate setting Group 1 ... This logic is implemented in the SEL control equation settings in OGIC Table 7.5.
Page 303 (Figure 7.19 on page 7.21). This allows only one active setting group change (e.g., from setting Group 1 to 4) for each pulse of the SCADA contact (and subsequent assertion of input IN105). The function of the SEL OGIC control equations in Table 7.5...
Page 304: Table 7.6 Active Setting Group Switching Input Logic
Group 6 The SEL-351S can be programmed to operate similarly. Use three optoisolated inputs to switch between the six setting groups in the SEL-351S. In this example, optoisolated inputs IN101, IN102, and IN103 on the relay are connected to a rotating selector switch in Figure 7.22.
Page 305: Figure 7.22 Rotating Selector Switch Connected To Inputs In101, In102, And In103 For Active Setting Group Switching
SEL control equation settings in Table 7.7. OGIC Table 7.7 SEL Control Equation Settings OGIC for Rotating Selector Switch Active Setting Group Switching SS1 = !IN103 * !IN102 * IN101 = NOT(IN103) * NOT(IN102) * IN101...
Page 306: Selector Switch Now Rests On Position Remote
{GROUP} pushbutton can be used to switch the active setting group from Group 5, in this example, to another desired setting group. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 307: Figure 7.23 Active Setting Group Switching (With Rotating Selector Switch) Time Line
(the relay is not momentarily disabled). If the individual settings change causes a change in one or more SEL OGIC control equation settings SS1–SS6, the active setting group can be changed, subject to the newly enabled SS1–SS6 settings.
Page 308: Note: Make Active Setting Group Switching Settings With Care
Switching Settings can result in an EEPROM self-test failure. An average of one (1) setting group change per day can be made for a 25-year relay service life. With Care This requires that SEL control equation settings SS1–SS6 (see OGIC Table 7.4) be set with care.
Page 309: Sel Ogic Control Equation Variables/Timers
Control Equation Variables/Timers OGIC Control Equation Variables/Timers OGIC Sixteen (16) SEL control equation variables/timers are available. Each OGIC control equation variable/timer has a SEL control equation OGIC OGIC setting input and variable/timer outputs as shown in Figure 7.24 Figure 7.25.
Page 310: Settings Example
SV16D0 Figure 7.25 SEL Control Equation Variables/Timers SV7/SV7T–SV16/ OGIC SV16T Settings Example 1 In the SEL control equation settings, a SEL control equation timer OGIC OGIC can be used for a simple breaker failure scheme: SV2 = TRIP The TRIP Relay Word bit is run through a timer for breaker failure timing.
Page 311 OGIC logic circuit (as shown in Figure 7.26) by virtue of SEL control equation OGIC setting SV7 being set equal to Relay Word bit SV7 (SEL control equation OGIC variable SV7): (SV7 + IN101)*(50P1 + 50N1) SV7 = Optoisolated input IN101 functions as a breaker failure initiate input. Phase instantaneous overcurrent element 50P1 and neutral ground instantaneous overcurrent element 50N1 function as fault detectors.
Page 312 7.31 Control Equation Variables/Timers OGIC Preceding Figure 7.26 shows an effective seal-in logic circuit, created by use of Relay Word bit SV7 (SEL control equation variable SV7) in SEL OGIC OGIC control equation SV7: SV7 = (SV7 + IN101)*(50P1 + 50N1) If power is lost to the relay, settings are changed (for the active setting group), or the active setting group is changed, the seal-in logic circuit is “broken”...
Page 313: Output Contacts
Output Contacts Figure 7.27 Figure 7.28 show the example operation of output contact Relay Word bits (e.g., Relay Word bits OUT101–OUT107 in Figure 7.27) due control equation operation (e.g., SEL control equation OGIC OGIC settings OUT101–OUT107 in Figure 7.27) PULSE command execution The output contact Relay Word bits in turn control the output contacts (e.g.,...
Page 314: Alarm Output Contact
(energized or de-energized) and output contact types (a or b). See Output Contact Jumpers on page 2.44 for output contact type options. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 315: Figure 7.27 Logic Flow For Example Output Contact Operation
2–3); an extra Alarm output contact (JMP23 in position 1–2). Figure 2.32 Table 2.4 for more information on jumper JMP23. Figure 7.27 Logic Flow for Example Output Contact Operation SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 316: Figure 7.28 Logic Flow For Example Output Contact Operation-Extra I/O Board
Table 2.3 for more information on selecting output contact type. Figure 7.28 Logic Flow for Example Output Contact Operation—Extra I/O Board Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 317: Rotating Default Display
Traditional Indicating Figure 7.29 shows traditional indicating panel lights wired in parallel with SEL-351S optoisolated inputs. Input IN101 provides circuit breaker status to the Panel Lights relay, and input IN102 enables/disables reclosing in the relay via the following control equation settings:...
Page 318: Figure 7.30 Rotating Default Display Replaces Traditional Panel Light Installations
(—) Figure 7.30 Rotating Default Display Replaces Traditional Panel Light Installations There are sixteen (16) of these default displays available in the SEL-351S. Each default display has two complementary screens (e.g., BREAKER CLOSED and BREAKER OPEN) available. General Operation of control equation display point setting DPn (n = 1–16) controls the...
Page 319 IN102 = logical 0 DP1 = This results in the display of corresponding text setting DP1_0 on the front- panel display: 79 DISABLED Circuit Breaker Status Indication Make SEL control equation display point setting DP2: OGIC 52A = IN101 DP2 =...
Page 320: Additional Settings Examples
OGIC equation display point setting directly to 0 (logical 0) or 1 (logical 1) and the corresponding text setting. For example, if an SEL-351S is protecting a 12 kV distribution feeder, labeled “Feeder 1204,” the feeder name can be continually...
Page 321: Active Setting Group Switching Considerations
This results in the continual display of text setting DP5_0 on the front-panel display: FEEDER 1204 Active Setting Group The SEL control equation display point settings DPn (n = 1–16) are OGIC available separately in each setting group. The corresponding text settings Switching DPn_1 and DPn_0 are made only once and used in all setting groups.
Page 322: Displaying Values (Other Than Userentered Text) On The Rotating Default Display
When setting Group 4 is the active setting group, the reclosing relay is always disabled and optoisolated input IN102 has no control over the reclosing relay. The text settings cannot be changed (they are used in all setting groups), but the SEL control equation settings can be changed: OGIC...
Page 323: Values Displayed For Incorrect Settings
With the DPn_0 setting problems just discussed, the relay displays the setting text string as it was actually entered, without substituting the intended display value from Table 7.8: SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 324: Table 7.8 Mnemonic Settings For Metering On The Rotating Default Display
º IG=IA+IB+IC (residual current) 0 = x x . x x x A y y y º 3I0=IG (zero-sequence current) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 325 C-phase demand megawatts in MWCPI M W C = x . x x x C-phase peak demand megawatts in SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 326 B-phase megavar-hours in MVRHBO M V A R h O = x x . x x x B-phase megavar-hours out Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 327: Extra Details For Displaying Breaker Wear Monitor Quantities On The Rotating Default Display
The DPn logic equation can be set to control the text display-turning it on and off under certain conditions. With the relay set as shown previously, the LCD will show the following: SEL-351S Relay Instruction Manual Date Code 20080103...
Page 328: Table 7.9 Mnemonic Settings For Breaker Wear Monitor Values On The Rotating Default Display
For example, with the settings 51P1P = 6.00 A, and CTR = 120, setting DP1_0 =::51P1P will display 720.00 A pri. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 329: Displaying Time-Overcurrent Elements Example
With the control string set on the even display points “DP2, DP4, DP6, …” and the description set on the odd display points “DP1, DP3, …,” each screen the relay scrolls through will have a description with the value below it. SEL-351S Relay Instruction Manual Date Code 20080103...
Page 330: Table 7.10 Mnemonic Settings For Time-Overcurrent (Toc) Element Pickups On The Rotating Default
51N1P xxxxxxx.xx ;;51N2P 51N2P xxxxxxx.xx ;;;000 51P1P xxxxxxx ;;;001 51P2P xxxxxxx ;;;002 51G1P xxxxxxx ;;;003 51G2P xxxxxxx ;;;004 51QP xxxxxxx Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 331 To illustrate this, continuing from the above example: SET T DP1_0 = NEUTRP=;;51N1P;A with IN101 deasserted, will display: SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 332: Control Strings
When IN101 = 0, the following will display on the front-panel display (assuming 51P1P = 720 A primary, and 51P2P = 600 A primary): 51THXYZ= 720A 51ABCD= 600AP Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 333 This page intentionally left blank Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 334: Breaker Monitor, Metering, And Load Profile Functions
The SEL-351S Relay monitoring functions include: ➤ Breaker Monitor on page 8.2 ➤ Station DC Battery Monitor on page 8.15 In addition to instantaneous metering, the SEL-351S metering functions include: ➤ Demand Metering on page 8.20 ➤ Energy Metering on page 8.29 ➤...
Page 335: Breaker Monitor
Breaker Monitor, Metering, and Load Profile Functions Breaker Monitor Breaker Monitor The breaker monitor in the SEL-351S helps in scheduling circuit breaker maintenance. The breaker monitor is enabled with the enable setting: EBMON = The breaker monitor settings in Table 8.2...
Page 336: Breaker Monitor Setting Example
Setting notes: ➤ COSP1 must be set greater than COSP2. ➤ COSP2 must be set greater than or equal to COSP3. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 337: Breaker Maintenance Curve Details
8.2), because the separate circuit breaker interrupting contacts for phases A, B, and C do not necessarily interrupt the same magnitude current (depending on fault type and loading). SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 338: Figure 8.2 Sel-351S Breaker Maintenance Curve For A 25 Kv Circuit Breaker
KASP3 = 20.0 COSP3 = 12 6 7 8 9 kA Interrupted per Operation Figure 8.2 SEL-351S Breaker Maintenance Curve for a 25 kV Circuit Breaker Figure 8.2, note that the breaker maintenance curve levels off horizontally above set point KASP1, COSP1. This is the close/open operation limit of the circuit breaker (COSP1 = 10000), regardless of interrupted current value.
Page 339: Figure 8.3 Operation Of Sel Ogic Control Equation Breaker Monitor Initiation Setting
The acquired current values are then applied to the breaker maintenance curve and the breaker monitor accumulated currents/trips (see references in previous paragraph). In the factory default settings, the SEL control equation breaker monitor OGIC...
Page 340: Percent To 25 Percent Breaker Wear
BRE R command. Additionally, logic outputs assert for alarm or other control applications—see the following discussion. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 341: Figure 8.4 Breaker Monitor Accumulates 10 Percent Wear
Breaker Monitor 100% 10,000 1000 6 7 8 9 kA Interrupted per Operation Figure 8.4 Breaker Monitor Accumulates 10 Percent Wear SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 342: Figure 8.5 Breaker Monitor Accumulates 25 Percent Wear
Breaker Monitor 100% 10,000 1000 6 7 8 9 kA Interrupted per Operation Figure 8.5 Breaker Monitor Accumulates 25 Percent Wear Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 343: Figure 8.6 Breaker Monitor Accumulates 50 Percent Wear
Breaker Monitor 100% 10,000 1000 6 7 8 9 kA Interrupted per Operation Figure 8.6 Breaker Monitor Accumulates 50 Percent Wear SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 344: Figure 8.7 Breaker Monitor Accumulates 100 Percent Wear
Phase C breaker contact wear has reached the 100 percent wear level BCWA + BCWB + BCWC Example Applications These logic outputs can be used to alarm: OUT105 = Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 345: Via Serial Port
(Rly Trips) and that generated by externally initiated trips (Ext Trips). The categorization of this data is determined by the status of Initiated Trips the TRIP Relay Word bit when the SEL control equation breaker monitor OGIC initiation setting BKMON operates.
Page 346: Factory Default Setting Example
OGIC IN106 BKMON = then the SEL-351S breaker monitor sees all trips. If output contact OUT101 asserts, energizing the trip bus, the breaker monitor will deem it a relay initiated trip. This is because when BKMON is newly asserted (input IN106 energized), the TRIP Relay Word bit is asserted. Thus, the current and trip count information is accumulated under relay initiated trips (Rly Trips).
Page 347 BKMON is newly asserted (input IN106 energized), the TRIP Relay Word bit is deasserted. Thus, the current and trip count information is accumulated under externally initiated trips (Ext Trips). SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 348: Station Dc Battery Monitor
Station DC Battery Monitor Station DC Battery Monitor The station dc battery monitor in the SEL-351S can alarm for under- or overvoltage dc battery conditions and give a view of how much the station dc battery voltage dips when tripping, closing, and other dc control functions take place.
Page 349 SV4 = DCLO * DCHI DCLOP SV4PU DCLO * DCHI SV4T SV4DO DCHIP OUT106 = SV4T Figure 8.10 Create DC Voltage Elements with SEL Control Equations OGIC DCLO < DCHI (Top of Figure 8.10) Output contact OUT106 asserts when: ≤ DCLOP or V ≥...
Page 350: View Station Dc Battery Voltage
Consider the output contact type (“a” or “b”) needed for output contact OUT106 in the bottom of Figure 8.10 (dc voltage alarm example). If SEL control equation setting OUT106 is asserted (OUT106 = SV4T = OGIC logical 1; dc voltage OK), the state of output contact OUT106 (according to contact type) is: closed (“a”...
Page 351: Station Dc Battery Voltage Dips During Circuit Breaker Tripping
Anytime the trip bus is energized, any dip in station dc battery voltage can be observed in column Vdc in the event report. Station DC Battery Voltage Dips During Circuit Breaker Closing To generate an event report when the SEL-351S closes the circuit breaker, make the SEL control equation event report generation setting: OGIC /OUT102 + ...
Page 352: Powering The Relay
Sequential Events Recorder (SER) Report on page 12.25]. Operation of Station If the SEL-351S has a power supply that can be powered by ac voltage, when powering the relay with ac voltage, the dc voltage elements in Figure 8.9 DC Battery Monitor...
Page 353: Demand Metering
8.20 Breaker Monitor, Metering, and Load Profile Functions Demand Metering Demand Metering The SEL-351S offers the choice between two types of demand metering, settable with the enable setting: THM (Thermal Demand Meter) EDEM = ROL (Rolling Demand Meter) EDEM =...
Page 354: Figure 8.11 Response Of Thermal And Rolling Demand Meters To A Step Input (Setting Dmtc = 15 Minutes)
Time (Minutes) Figure 8.11 Response of Thermal and Rolling Demand Meters to a Step Input (Setting DMTC = 15 Minutes) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 355: Thermal Demand Meter Response (Edem = Thm)
(middle) is at 90 percent (0.9 per unit) of full applied value (1.0 per unit) after a time period equal to setting DMTC = 15 minutes, referenced to when the step current input is first applied. The SEL-351S updates thermal demand values approximately every two seconds. Rolling Demand Meter Response (EDEM = ROL) The response of the rolling demand meter in Figure 8.11...
Page 356: Time = 0 Minutes
5 to 10 minutes 2.0 per unit Rolling demand meter response at “Time = 10 minutes” = 2.0/3 = 0.67 per unit Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 357: Time = 15 Minutes
Relay Word bit GDEM asserts to logical 1. Use these demand current logic outputs (PDEM, NDEM, GDEM, and QDEM) to alarm for high loading or unbalance conditions. Use in other schemes such as the following example. SEL-351S Relay Instruction Manual Date Code 20080103...
Page 358: Demand Current Logic Output Application-Raise Pickup For Unbalance Current
51G1T. This is accomplished Raise Pickup for with the following settings from Table 8.3, pertinent residual ground Unbalance Current overcurrent element settings, and SEL control equation torque control OGIC setting 51G1TC: EDEM = DMTC = GDEMP = 1.50...
Page 359: Figure 8.14 Raise Pickup Of Residual Ground Time-Overcurrent Element For Unbalance Current
I G(DEM) below corresponding demand pickup GDEMP = 1.00 A secondary, and Relay Word bit GDEM is deasserted to logical 0. This results in SEL control OGIC equation torque control setting 51G1TC being in the state:...
Page 360 GDEMP = G(DEM) 1.00 A secondary, and Relay Word bit GDEM deasserts to logical 0. This results in SEL control equation torque control setting 51G1TC being in OGIC the state:...
Page 361: Demand Metering Updating And Storage
Breaker Monitor, Metering, and Load Profile Functions Demand Metering Demand Metering The SEL-351S updates demand values approximately every two seconds. Updating and Storage The relay stores peak demand values to nonvolatile storage once per day (it overwrites the previous stored value if it is exceeded). Should the relay lose control power, it will restore the peak demand values saved by the relay at 23:50 hours on the previous day.
Page 362: Energy Metering
When the energy meter reaches 99999 MWh or 99999 MVARh, it starts over at zero. In firmware versions released prior to November 2002, the SEL 351S relay energy meter registered dollar signs ($$) after reaching the upper metering limit.
Page 363: Maximum/Minimum Metering
The metering and reset functions available via serial port commands MET M and MET RM are also available via the front-panel {METER} pushbutton. See Figure 11.2. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 364: Maximum/Minimum Metering Update And Storage
Breaker Monitor, Metering, and Load Profile Functions 8.31 Maximum/Minimum Metering Maximum/Minimum The maximum/minimum metering function is intended to reflect normal load variations rather than fault conditions or outages. Therefore, the SEL-351S Metering Update updates maximum/minimum values only if SEL control equation setting OGIC...
Page 365: Small Signal Cutoff For Metering
0.01 A 0.05 A 0.01 A 0.002 A 0.0005 A Voltage Channels: All Models VA, VB, VC, VS 0.1 V SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 366: Synchrophasor Metering
For more information, see View Metering Information Synchrophasors by Using the MET PM Command on page L.12. Via Serial Port Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 367: Load Profile Report (Available In Firmware Versions 6 And 7)
Phase megaWATT hours in (wye connected only) MWH3I Three-phase megaWATT hours in MWHAO, MWHBO, MWHCO Phase megaWATT hours out (wye connected only) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 368 (row 1) at the end (bottom) of the report. Chronological progression through the report is down the page and in descending row number. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 369 07/23/96 09:00:01 xxxxx.xxx xxxxx.xxx xxxxx.xxx xxxxx.xxx ... xxxxx.xxx <ETX> => If the requested load profile report rows do not exist, the relay responds: No Load Profile Data SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 370: Determining The Size Of The Load Profile Buffer
Are you sure (Y/N) ? Y <Enter> Clearing Complete Changing the LDLIST setting will also result in the buffer being cleared. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 371 This page intentionally left blank Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 372: Setting The Relay
Delta-Connected Voltages (Global Setting PTCONN = DELTA) on page 2.19 Broken-Delta VS Connection (Global Setting VSCONN = 3V0) on page 2.20. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 373: Section 9: Setting The Relay Introduction
VSCONN settings, so are not affected by the order of setting entry. ERATOR ® ™ Using the QuickSet SEL-5030 software to make settings changes handles these details automatically. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 374: Settings Changes Via The Front Panel
Refer to Figure 11.3 for information on front- panel communications. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 375: Settings Changes Via The Serial Port
7.27), but the ENABLED LED remains on (see opens for an a; see Figure Table 5.1) while the new settings are saved. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 376: Time-Overcurrent Curves
Figure 9.5 ⎝ ⎠ – 0.02 – U.S. Curve U4 differs slightly from the SEL-351R Recloser Control and SEL-351 Relay family U4 curves. Table 9.4 Equations Associated with IEC Curves (Sheet 1 of 2) Curve Type Operating Time Reset Time Figure ⎛...
Page 377: Recloser Curves
Newer microprocessor-based recloser control designation: 101 Recloser curve A and curve 101 are the same curve—use either designation in making curve settings in the SEL-351S Relay. The recloser curves have a time-dial setting range of 0.10 to 2.00, as is available in traditional microprocessor-based recloser controls.
Page 378: Figure 9.1 U.s. Moderately Inverse Curve: U1
.5 .6 .7 .8 .9 1 5 6 7 8 9 Multiples of Pickup Figure 9.1 U.S. Moderately Inverse Curve: U1 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 379: Figure 9.2 U.s. Inverse Curve: U2
.5 .6 .7 .8 .9 1 5 6 7 8 9 Multiples of Pickup Figure 9.2 U.S. Inverse Curve: U2 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 380: Figure 9.3 U.s. Very Inverse Curve: U3
.5 .6 .7 .8 .9 1 5 6 7 8 9 Multiples of Pickup Figure 9.3 U.S. Very Inverse Curve: U3 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 381: Figure 9.4 U.s. Extremely Inverse Curve: U4
.5 .6 .7 .8 .9 1 6 7 8 9 Multiples of Pickup Figure 9.4 U.S. Extremely Inverse Curve: U4 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 382: Figure 9.5 U.s. Short-Time Inverse Curve: U5
3 (2.5) 0.50 .5 .6 .7 .8 6 7 8 9 Multiples of Pickup Figure 9.5 U.S. Short-Time Inverse Curve: U5 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 383: Figure 9.6 I.e.c. Class A Curve (Standard Inverse): C1
.5 .6 .7 .8 .9 1 5 6 7 8 9 Multiples of Pickup Figure 9.6 I.E.C. Class A Curve (Standard Inverse): C1 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 384: Figure 9.7 I.e.c. Class B Curve (Very Inverse): C2
.5 .6 .7 .8 .9 1 6 7 8 9 Multiples of Pickup Figure 9.7 I.E.C. Class B Curve (Very Inverse): C2 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 385: Figure 9.8 I.e.c. Class C Curve (Extremely Inverse): C3
.5 .6 .7 .8 .9 1 6 7 8 9 Multiples of Pickup Figure 9.8 I.E.C. Class C Curve (Extremely Inverse): C3 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 386: Figure 9.9 I.e.c. Long-Time Inverse Curve: C4
0.50 0.40 0.30 60 (50) 0.20 30 (25) 0.10 0.05 Multiples of Pickup Figure 9.9 I.E.C. Long-Time Inverse Curve: C4 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 387: Figure 9.10 I.e.c. Short-Time Inverse Curve: C5
0.05 .5 .6 .7 .8 .9 6 7 8 9 Multiples of Pickup Figure 9.10 I.E.C. Short-Time Inverse Curve: C5 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 388: Figure 9.11 Recloser Control Response Curves A, C, N, And W
Setting the Relay 9.17 Time-Overcurrent Curves Figure 9.11 Recloser Control Response Curves A, C, N, and W Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 389: Figure 9.12 Recloser Control Response Curves B, R, 2, And 3
9.18 Setting the Relay Time-Overcurrent Curves Figure 9.12 Recloser Control Response Curves B, R, 2, and 3 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 390: Figure 9.13 Recloser Control Response Curves D, 8Plus, And 16
Setting the Relay 9.19 Time-Overcurrent Curves Figure 9.13 Recloser Control Response Curves D, 8PLUS, and 16 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 391: Figure 9.14 Recloser Control Response Curves F, H, J, And 1
9.20 Setting the Relay Time-Overcurrent Curves Figure 9.14 Recloser Control Response Curves F, H, J, and 1 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 392: Figure 9.15 Recloser Control Response Curves G, V, 6, And 13
Setting the Relay 9.21 Time-Overcurrent Curves Figure 9.15 Recloser Control Response Curves G, V, 6, and 13 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 393: Figure 9.16 Recloser Control Response Curves E, P, And 18
9.22 Setting the Relay Time-Overcurrent Curves Figure 9.16 Recloser Control Response Curves E, P, and 18 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 394: Figure 9.17 Recloser Control Response Curves Kg, Y, Z, And 5
Setting the Relay 9.23 Time-Overcurrent Curves Figure 9.17 Recloser Control Response Curves KG, Y, Z, and 5 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 395: Figure 9.18 Recloser Control Response Curves Kp, M, T, And 17
9.24 Setting the Relay Time-Overcurrent Curves Figure 9.18 Recloser Control Response Curves KP, M, T, and 17 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 396: Figure 9.19 Recloser Control Response Curves 4, 9, 11, And 14
Setting the Relay 9.25 Time-Overcurrent Curves Figure 9.19 Recloser Control Response Curves 4, 9, 11, and 14 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 397: Figure 9.20 Recloser Control Response Curves L, 7, 8, And 15
9.26 Setting the Relay Time-Overcurrent Curves Figure 9.20 Recloser Control Response Curves L, 7, 8, and 15 SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 398: Relay Word Bits (Used In Sel Ogic Control Equations)
TAR Command (Display Relay Element Status) on page 10.34]. Rows 0 and 1 are reserved for the display of the two front-panel target LED rows (See Table 10.6). Table 9.6 SEL-351S Relay Word Bits (Sheet 1 of 3) Relay Word Bits 50A1 50B1 50C1 50A2...
Page 399 9.28 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC Table 9.6 SEL-351S Relay Word Bits (Sheet 2 of 3) Relay Word Bits SV1T SV2T SV3T SV4T SV5T SV6T SV7T SV8T SV10 SV11 SV12 SV9T SV10T SV11T...
Page 400: Table 9.7 Relay Word Bit Definitions For Sel-351S
Setting the Relay 9.29 Relay Word Bits (Used in SEL Control Equations) OGIC Table 9.6 SEL-351S Relay Word Bits (Sheet 3 of 3) Relay Word Bits 27AB2 27BC2 27CA2 59AB2 59BC2 59CA2 59Q2 V1GOOD V0GAIN INMET ICMET IBMET IAMET GNDSW...
Page 401 9.30 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 2 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application 50BC2 Level 2 BC-phase-to-phase instantaneous overcurrent element (BC-phase-to-phase current above pickup setting 50PP2P; see Figure 3.7)
Page 402 Setting the Relay 9.31 Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 3 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application 51N2T Neutral ground time-overcurrent element 51N2T timed out (see Figure 3.17) Tripping...
Page 403 9.32 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 4 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application 67P1T Level 1 phase definite-time overcurrent element 67P1T timed out Tripping (derived from 67P1; see Figure 3.3)
Page 404 Setting the Relay 9.33 Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 5 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application 67G1T Level 1 residual ground definite-time overcurrent element 67G1T timed out Tripping (derived from 67G1;...
Page 405 9.34 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 6 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application F32P Forward positive-sequence voltage-polarized directional element Testing, Special (see Figure 4.19 Figure 4.21)
Page 406 Setting the Relay 9.35 Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 7 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application 59C1 C-phase instantaneous overvoltage element (C-phase voltage above pickup setting 59P1P; see Figure 3.21)
Page 407 9.36 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 8 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application 81D1 Level 1 instantaneous frequency element (with corresponding pickup setting 81D1P; Testing Figure 3.31)
Page 408 Setting the Relay 9.37 Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 9 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application Local Bit 1 asserted (see Figure 7.4) Control via front panel—replac- Local Bit 2 asserted (see Figure 7.4)
Page 409 9.38 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 10 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application Latch Bit 9 asserted (see Figure 7.12) Control—replac- ing traditional LT10 Latch Bit 10 asserted (see Figure 7.12)
Page 410 Setting the Relay 9.39 Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 11 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application 79RS Reclosing relay in the Reset State (see Figure 6.8 Table 6.1)
Page 411 9.40 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 12 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application ZLOAD = ZLOUT + ZLIN (see Figure 4.2) Special phase overcurrent element control...
Page 412 Setting the Relay 9.41 Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 13 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application NSTRT Nondirectional carrier start (see Figure 5.14) STOP Carrier stop (see Figure 5.14)
Page 413 9.42 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 14 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application IN208 Optoisolated input IN208 asserted (see Figure 7.2) Circuit breaker status, Control...
Page 414 Setting the Relay 9.43 Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 15 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application RMB8A Channel A, received bit 8 (only operable in (see Appendix I: M...
Page 415 9.44 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 16 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application LBOKB Channel B, looped back ok (see Appendix I: M Communications (In Firmware Versions 6 and...
Page 416 Setting the Relay 9.45 Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 17 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application SAGAB Phase-to-phase AB voltage sag element (see Figure 3.32) Sag/Swell/Int reporting (only...
Page 417 9.46 Setting the Relay Relay Word Bits (Used in SEL Control Equations) OGIC (Sheet 18 of 19) Table 9.7 Relay Word Bit Definitions for SEL-351S Primary Definition Application V1GOOD Positive-sequence overvoltage element (positive-sequence voltage greater than setting Testing VNOM • 0.75 (wye-connected) or VNOM • 0.43 (delta-connected); see Figure 4.1)
Page 418 Table 10.6) and cannot be used in SEL control OGIC equations. However Relay Word bits LED19–LED26 can be used in SEL control equations. OGIC Relay Word bits LED19–LED26 have labels similar to the SEL control equation settings in the middle column in Table 5.1...
Page 419: Settings Explanations
Relay Settings (Serial Port Command SET and Front Panel) on page SET.1. The SEL-351S has two identifier labels: the Relay Identifier (RID) and the Terminal Identifier (TID). The Relay Identifier is typically used to identify the relay or the type of protection scheme. Typical Terminal Identifiers include an abbreviation of the substation name and line terminal.
Page 420 ANSI voltage classification of CTs ANSI An SEL-351S phase instantaneous overcurrent element is to be set at 80 amps. The relay will be used with a C400, 400:5 current transformer with a 0.50 Ω ohm total burden. The X/R ratio is 20. Determine the maximum fault current for dependable operation.
Page 421: Settings For Voltage Input Configuration
Equation 9.1. Settings for Voltage SEL-351S relays with firmware version R107 or lower can only accept wye- connected PTs to the voltage inputs, and can only use voltage input VS as a Input Configuration synchronism check voltage/auxiliary voltage input. Beginning with firmware revision R108, these relays have two new global settings, PTCONN and VSCONN;...
Page 422: Table 9.8 Main Relay Functions That Change With Vsconn, When Ptconn = Wye
9.9. When VSCONN = 3V0, some relay elements are unavailable or cannot be selected. This Instruction Manual explains these differences in relation to each affected element or setting. To indicate the state of VSCONN in SEL control equations, Relay Word bit 3V0 operates as shown in OGIC Figure 9.21.
Page 423: Table 9.9 Main Relay Functions That Change With Vsconn, When Ptconn = Delta
Switch B in "up" position when VSCONN = 3V0 Switch B in "down" position when VSCONN = VS Figure 9.21 Operation of DELTA and 3V0 Relay Word Bits SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 424: Table 9.10 Main Relay Functions That Change With Vnom = Off
Settings PTR and PTRS are used in event report and METER commands so that power system values can be reported in primary units. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 425: Line Settings
Line Angle for correct fault location for forward faults. Neutral ground resistor Figure 9.22 Hybrid Power System With Neutral Ground Resistor SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 426: Other System Parameters
Global Settings (Serial Port Command SET G and Front Panel) on page SET.25. Parameters The global settings NFREQ and PHROT allow you to configure the SEL-351S to your specific system. Set NFREQ equal to your nominal power system frequency, either 50 Hz or 60 Hz.
Page 427 Set DATE_F to format the date displayed in relay reports and the front-panel display. Set DATE_F to MDY to display dates in Month/Day/Year format; set DATE_F to YMD to display dates in Year/Month/Day format. SEL-351S Relay Instruction Manual Date Code 20080103...
Page 428: Settings Sheets
1 A nominal ordering options (and additional 0.2 A nominal and 0.05 A nominal options for neutral channel IN) and how they influence overcurrent element setting ranges. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 429 This page intentionally left blank Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 430: Sel-351S Settings Sheets
Date _______________ SEL-351S Settings Sheets 1 of 36 Relay Settings (Serial Port Command SET and Front Panel) Group______________ SEL-351S Settings Sheets Relay Settings (Serial Port Command SET and Front Panel) To avoid lost settings, enter Global settings first if Global Settings PTCONN or VSCONN are going to be changed.
Page 431: Instantaneous/Definite-Time Overcurrent Enable Settings
2 of 36 SEL-351S Settings Sheets Date _______________ Relay Settings (Serial Port Command SET and Front Panel) Group______________ Make settings Z0SMAG and Z0SANG when Global Settings PTCONN = DELTA and NOTE: VSCONN = VS Zero-sequence source impedance magnitude (delta-connected Z0SMAG voltages) (0.10–510.00 Ω...
Page 432 Date _______________ SEL-351S Settings Sheets 3 of 36 Relay Settings (Serial Port Command SET and Front Panel) Group______________ When setting VNOM = OFF, setting EFLOC can only be set to “N” NOTE: Fault location (Y, N) (see Fault Location on page 12.5)
Page 433: Phase-To-Phase Instantaneous Overcurrent Elements
4 of 36 SEL-351S Settings Sheets Date _______________ Relay Settings (Serial Port Command SET and Front Panel) Group______________ Time delay (0.00–16000.00 cycles in 0.25-cycle steps) 67P3D Time delay (0.00–16000.00 cycles in 0.25-cycle steps) 67P4D Phase-to-Phase Instantaneous Overcurrent Elements (See Figure 3.7)
Page 434 Date _______________ SEL-351S Settings Sheets 5 of 36 Relay Settings (Serial Port Command SET and Front Panel) Group______________ Time delay (0.00–16000.00 cycles in 0.25-cycle steps) 67N3D Time delay (0.00–16000.00 cycles in 0.25-cycle steps) 67N4D Residual Ground Inst./Def.-Time Overcurrent Elements (See Figure 3.10...
Page 435: Phase Time-Overcurrent Element
6 of 36 SEL-351S Settings Sheets Date _______________ Relay Settings (Serial Port Command SET and Front Panel) Group______________ Pickup 50Q4P (OFF, 0.25–100.00 A {5 A nom.}, 0.05–20.00 A {1 A nom.}) Pickup 50Q5P (OFF, 0.25–100.00 A {5 A nom.}, 0.05–20.00 A {1 A nom.})
Page 436 Date _______________ SEL-351S Settings Sheets 7 of 36 Relay Settings (Serial Port Command SET and Front Panel) Group______________ Neutral Ground Time-Overcurrent Elements—Channel IN (See Figure 3.16 Figure 3.17) Make the following settings if preceding enable setting E51N = 1 or 2 NOTE: Pickup (OFF, 0.500–16.000 A {5 A nom.},...
Page 437 8 of 36 SEL-351S Settings Sheets Date _______________ Relay Settings (Serial Port Command SET and Front Panel) Group______________ Curve (U1–U5, C1–C5, recloser curves; 51G2C Figure 9.1–Figure 9.20) Time-Dial (0.50–15.00 for curves U1–U5, 0.05–1.00 for curves 51G2TD C1–C5, 0.10–2.00 for recloser curves) Electromechanical Reset (Y, N;...
Page 438 Date _______________ SEL-351S Settings Sheets 9 of 36 Relay Settings (Serial Port Command SET and Front Panel) Group______________ Level 3 direction: Forward, Reverse, None (F, R, N) DIR3 Level 4 direction: Forward, Reverse, None (F, R, N) DIR4 Ground directional element priority:...
Page 439 10 of 36 SEL-351S Settings Sheets Date _______________ Relay Settings (Serial Port Command SET and Front Panel) Group______________ Make settings Z0F and Z0R if preceding enable setting E32 = Y and preceding setting ORDER NOTE: contains V or S. If E32 = AUTO and ORDER contains V or S, these settings are made automatically.
Page 440 Date _______________ SEL-351S Settings Sheets 11 of 36 Relay Settings (Serial Port Command SET and Front Panel) Group______________ Positive-sequence (V1) overvoltage pickup 59V1P (OFF, 0.00–300.00 V secondary) Channel VS undervoltage pickup 27SP (OFF, 0.00–300.00 V secondary) Channel VS overvoltage pickup 59S1P (OFF, 0.00–300.00 V secondary)
Page 441: Frequency Element
12 of 36 SEL-351S Settings Sheets Date _______________ Relay Settings (Serial Port Command SET and Front Panel) Group______________ Synchronizing phase SYNCP (Global Setting PTCONN=WYE: VA, VB, VC or 0° to 330° in 30° steps; degree option is for VS not in phase with VA, VB, or VC—set with respect to VS constantly lagging VA)
Page 442 Date _______________ SEL-351S Settings Sheets 13 of 36 Relay Settings (Serial Port Command SET and Front Panel) Group______________ Reset time from lockout 79RSLD (0.00–999999.00 cycles in 0.25-cycle steps) Reclose supervision time limit (OFF, 0.00–999999.00 cycles in 79CLSD 0.25-cycle steps) (set 79CLSD = 0.00 for most applications;...
Page 443: Other Settings
14 of 36 SEL-351S Settings Sheets Date _______________ Relay Settings (Serial Port Command SET and Front Panel) Group______________ Level 2 phase short delay 67P2SD (0.00–60.00 cycles in 0.25-cycle steps) Level 2 neutral ground short delay 67N2SD (0.00–60.00 cycles in 0.25-cycle steps)
Page 444: Power Elements
Date _______________ SEL-351S Settings Sheets 15 of 36 Relay Settings (Serial Port Command SET and Front Panel) Group______________ SV4 Pickup Time (0.00–999999.00 cycles in 0.25-cycle steps) SV4PU SV4 Dropout Time (0.00–999999.00 cycles in 0.25-cycle steps) SV4DO SV5 Pickup Time (0.00–999999.00 cycles in 0.25-cycle steps) SV5PU SV5 Dropout Time (0.00–999999.00 cycles in 0.25-cycle steps)
Page 445 16 of 36 SEL-351S Settings Sheets Date _______________ Relay Settings (Serial Port Command SET and Front Panel) Group______________ Make setting 3PWR1P if EPWR = 3P1–3P4). NOTE: Three-Phase Power Element Pickup 3PWR1P (OFF, 1.00–39000.00 VA secondary three-phase {5 A nom}) (OFF, 0.20–7800.00 VA secondary three-phase {1 A nom}) Pwr Ele.
Page 446 Date _______________ SEL-351S Settings Sheets 17 of 36 Relay Settings (Serial Port Command SET and Front Panel) Group______________ Voltage Sag/Swell/Interrupt (Available in Firmware Version 7; see Figure 3.32–Figure 3.34) Make the following settings if preceding enable setting ESSI=Y NOTE: Percent Phase Interruption Pickup...
Page 447: Communications-Assisted Trip Scheme Input Equations
18 of 36 SEL-351S Settings Sheets Date________________ Control Equation Settings (Serial Port Command SET L) OGIC Control Equation Settings OGIC (Serial Port Command SET L) control equation settings consist of Relay Word bits (see Table 9.6) and SEL control OGIC OGIC equation operators * (AND), + (OR), ! (NOT), / (rising edge), \ (falling edge), and ( ) (parentheses).
Page 448 Date _______________ SEL-351S Settings Sheets 19 of 36 Control Equation Settings (Serial Port Command SET L) OGIC Stall open interval timing 79STL Block reset timing 79BRS Sequence coordination 79SEQ Reclose supervision (see Figure 6.5) 79CLS Latch Bits Set/Reset Equations (See Figure 7.12)
Page 449: Torque Control Equations For Inst./Def.-Time Overcurrent Elements
20 of 36 SEL-351S Settings Sheets Date________________ Control Equation Settings (Serial Port Command SET L) OGIC Reset latch Bit LT14 RST14 Set Latch Bit LT15 SET15 Reset Latch Bit LT15 RST15 Set Latch Bit LT16 SET16 Reset Latch Bit LT16 RST16 Torque Control Equations for Inst./Def.-Time Overcurrent Elements...
Page 450: Output Contact Equations
Date _______________ SEL-351S Settings Sheets 21 of 36 Control Equation Settings (Serial Port Command SET L) OGIC Control Equation Variable Timer Input Equations OGIC (See Figure 7.24 Figure 7.25) Control Equation Variable SV1 OGIC Control Equation Variable SV2 OGIC Control Equation Variable SV3...
Page 451 22 of 36 SEL-351S Settings Sheets Date________________ Control Equation Settings (Serial Port Command SET L) OGIC Output Contact OUT205 OUT205 Output Contact OUT206 OUT206 Output Contact OUT207 OUT207 Output Contact OUT208 OUT208 Output Contact OUT209 OUT209 Output Contact OUT210 OUT210...
Page 452: Other Equations
Date _______________ SEL-351S Settings Sheets 23 of 36 Control Equation Settings (Serial Port Command SET L) OGIC Display Point Equations (See Rotating Default Display on page 7.36 Rotating Default Display on page 11.12) Display Point DP1 Display Point DP2 Display Point DP3...
Page 453 24 of 36 SEL-351S Settings Sheets Date________________ Control Equation Settings (Serial Port Command SET L) OGIC Breaker monitor initiation (see Figure 8.3) BKMON Enable for zero-sequence voltage-polarized and channel IN E32IV current-polarized directional elements (see Figure 4.7) ITS ® Transmit Equations (Available in Firmware Versions 6 and 7;...
Page 454: Global Settings (Serial Port Command Set G And Front Panel)
Date _______________ SEL-351S Settings Sheets 25 of 36 Global Settings (Serial Port Command SET G and Front Panel) Global Settings (Serial Port Command SET G and Front Panel) To avoid lost settings, enter global settings first if Global Settings PTCONN or VSCONN are going to be changed.
Page 455 26 of 36 SEL-351S Settings Sheets Date________________ Global Settings (Serial Port Command SET G and Front Panel) Station DC Battery Monitor (See Figure 8.9 Figure 8.10) DC battery instantaneous undervoltage pickup DCLOP (OFF, 20–300 Vdc) DC battery instantaneous overvoltage pickup DCHIP (OFF, 20–300 Vdc)
Page 456 Date _______________ SEL-351S Settings Sheets 27 of 36 Global Settings (Serial Port Command SET G and Front Panel) Close/Open set point 3-min. (0–65000 operations) COSP3 kA Interrupted set point 1-min. KASP1 (0.00–999.00 kA primary in 0.01 kA steps) kA Interrupted set point 2-mid.
Page 457 28 of 36 SEL-351S Settings Sheets Date________________ Global Settings (Serial Port Command SET G and Front Panel) Trip Latch LED 25 (Y,N) LED25L Trip Latch LED 26 (Y,N) LED26L Reset trip-latched LEDs when breaker closes (Y,Y1,N,N1) RSTLED The numeral “1” appended to setting options “Y1” and “N1”...
Page 458 Date _______________ SEL-351S Settings Sheets 29 of 36 Sequential Events Recorder and Load Profile Settings (Serial Port Sequential Events Recorder and Load Profile Settings (Serial Port Command SET R) Sequential Events Recorder settings are comprised of three trigger lists. Each trigger list can...
Page 459 30 of 36 SEL-351S Settings Sheets Date________________ Sequential Events Recorder and Load Profile Settings (Serial Port Element Quantity Recorded MWH3I Three-phase megaWATT hours in MWHAO, MWHBO, MWHCO Phase megaWATT hours out (wye-connected only) MWH3O Three-phase megaWATT hours out MVRHAI, MVRHBI, MVRHCI...
Page 460: Local Bit Labels
Date _______________ SEL-351S Settings Sheets 31 of 36 Text Label Settings (Serial Port Command SET T) Text Label Settings (Serial Port Command SET T) Enter the following characters: 0–9, A–Z, -, /, ., space for each text label setting, subject to the NOTE: specified character limit.
Page 461 32 of 36 SEL-351S Settings Sheets Date________________ Text Label Settings (Serial Port Command SET T) Set Local Bit LB8 Label (7 characters) SLB8 Pulse Local Bit LB8 Label (7 characters) PLB8 Local Bit LB9 Name (14 characters) NLB9 Clear Local Bit LB9 Label (7 characters)
Page 462 Date _______________ SEL-351S Settings Sheets 33 of 36 Text Label Settings (Serial Port Command SET T) Display Point Labels (See Rotating Default Display on page 7.36 Rotating Default Display on page 11.12) Display if DP1 = logical 1 (16 characters)
Page 463 34 of 36 SEL-351S Settings Sheets Date________________ Text Label Settings (Serial Port Command SET T) Display if DP16 = logical 1 (16 characters) DP16_1 Display if DP16 = logical 0 (16 characters) DP16_0 Reclosing Relay Labels (See Functions Unique to the Front-Panel Interface on page 11.6)
Page 464 Protocol (SEL, LMD, DNP, DNPE, MBA, MBB, MB8A, PROTO MB8B) Protocol Settings Set PROTO = SEL for standard SEL ASCII protocol. For SEL Distributed Port Switch Protocol (LMD), set PROTO = LMD. Refer to Appendix C: SEL Distributed Port Switch Protocol for details on the LMD protocol.
Page 465 Set FASTOP = Y to enable binary Fast Operate messages at the serial port. Set FASTOP = N to block binary Fast Operate messages. Refer to Appendix D: Configuration, Fast Meter, and Fast Operate Commands for the description of the SEL-351S Relay Fast Operate commands. SEL-351S Relay Instruction Manual Date Code 20080103...
Page 466 Section 10 Serial Port Communications and Commands Introduction The SEL-351S Relay comes equipped with the following serial ports: ➤ Serial Port 1, EIA-485 (rear panel; see Table 10.2) ➤ Serial Port 2, EIA-232 (rear panel; see Table 10.1) ➤ Serial Port 3, EIA-232 (rear panel; see Table 10.1)
Page 467: Section 10: Serial Port Communications And Commands
Table 10.2). This is handled adeptly by connecting Serial Port 2 of the SEL-351S to an SEL-2032 with Cable C273A (see cable diagrams that follow in this section). If demodulated IRIG-B time code is input into Serial Port 1, it should not be input into Serial Port 2 and vice versa.
Page 468: Sel-351S To Computer
Port Connector and Communications Cables The following cable diagrams show several types of EIA-232 serial communications cables that connect the SEL-351S to other devices. These and other cables are available from SEL. Contact the factory for more information. SEL-351S to Computer...
Page 469: Sel-351S To Sel-Prtu
10.4 Serial Port Communications and Commands Port Connector and Communications Cables SEL-351S to SEL-PRTU Cable SEL-C231 SEL-PRTU SEL-351S Relay 9-Pin Male 9-Pin Male Round Conxall "D" Subconnector Func. Pin # Pin # Func. SEL-351S to Cable SEL-C273A SEL-2032, SEL-2030, SEL Communications...
Page 470 Definition Data Terminal Ready Data Set Ready For long-distance communications up to 500 meters and for electrical isolation of communications ports, use the SEL-2800 family of Fiber-Optic Transceivers. Contact SEL for more details on these devices. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ...
Page 471: Communications Protocol
Command SET P and Front Panel) on page SET.35. To select SEL ASCII protocol, set the port PROTO setting to SEL. To select SEL Distributed Port Switch Protocol (LMD), set PROTO = LMD. To select DNP protocol, set PROTO = DNP.
Page 472: Sel Distributed Port Switch Protocol (Lmd)
Appendix C: SEL Distributed Port Switch Protocol for more information. SEL Fast Meter Protocol SEL Fast Meter protocol supports binary messages to transfer metering and control messages. The protocol is described in Appendix D: Configuration, Fast Meter, and Fast Operate Commands.
Page 473: Sel Compressed Ascii Protocol
SEL Fast Sequential Events Recorder (SER) Protocol, also known as SEL Unsolicited Sequential Events Recorder, provides SER events to an automated data collection system. SEL Fast SER Protocol is available on any serial port. The protocol is described in Appendix J: SEL-351S Fast SER Protocol.
Page 474: Serial Port Automatic Messages
The automatic messages are described in Table 10.4. When the serial port AUTO setting is DTA, the SEL-351S is compatible with the SEL-DTA2 on that port. The MET and MET D command responses are modified to comply with the DTA2 data format for that port.
Page 475: Serial Port Access Levels
2AC Commands (Go to Access Level 1, B, or 2) for more detail]. Enter the 2AC command at the Access Level 1 prompt: =>2AC <Enter> SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 476: Access Level B
While in Access Level 2, any of the Access Level 1 and Access Level B commands are also available (commands BAC through PUL in Table 10.5). Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 477: Table 10.5 Serial Port Command Summary
Show/view settings => Voltage Sag/Swell/Interruption Report {STATUS} => Relay self-test status => Display relay element status {OTHER} {OTHER} => View/change time SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 478 The serial port command explanations that follow in Command Explanations on page 10.14 are in the same order as the commands listed in Table 10.5. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 479: Command Explanations
Password: ? is incorrectly entered three times, the relay closes the ALARM contact for one second and displays an invalid access message. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 480: Access Level Attempt (Password Not Required)
BRE n Command (Preload/Reset Breaker Wear) on page 10.37 Breaker Monitor on page 8.2 for further details on the breaker monitor. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 481: Comm Command (Communication Data-Available In Firmware Versions 6 And 7)
7). To get a summary report, enter the command with the channel parameter (A or B). =>COMM A <Enter> FEEDER 1 Date: 04/20/98 Time: 18:36:11.748 STATION A FID=SEL-351S-5-R100-VO-Z001001-D199908xx CID=xxxx Summary for Mirrored Bits channel A For 04/20/01 18:36:09.279 to 04/20/01 18:36:11.746 Total failures Last error Relay Disabled...
Page 482: Dat Command (View/Change Date)
Command (Change Active Setting Group) on page 10.38 Multiple Setting Groups on page 7.19 for further details on settings groups. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 483: His Command (Event Summaries/History)
C-phase to ground faults for A–B phase-to-phase faults for B–C phase-to-phase faults for C–A phase-to-phase faults for A–B phase-to-phase to ground faults SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 484 EVENT TRIP event report generated by assertion of Relay Word bit TRIP event report generated by assertion of SEL control OGIC equation event report trigger condition setting ER PULSE event report generated by execution of the PUL (Pulse)
Page 485: Met K-Instantaneous Metering
NOTE: If the serial port AUTO setting quantities include phase voltages and currents, sequence component voltages is DTA, the SEL-351S response for MET, MET X, and MET D will be formatted and currents, power, frequency, substation battery voltage, energy, demand, differently on that serial port than and maximum/minimum logging of selected quantities.
Page 486: Met X K-Extended Instantaneous Metering
(1–32767) to repeat the meter display. If k is not specified, the meter report is displayed once. The output from an SEL-351S with wye-connected voltage inputs is shown: =>MET <Enter>...
Page 487 Vbase initializing. The Vbase quantity is used in the SEL-351S-7 relay model. Vbase is always shown as 0.00 kV in SEL-351S-5, -6 relay models. Power Single-phase megawatts A,B,C (wye-connected voltage inputs only)
Page 488: Met D-Demand Metering
(1–32767) to repeat the meter display. If k is not specified, the meter report is displayed once. The output from an SEL-351S with wye-connected voltage inputs is shown: =>MET X <Enter>...
Page 489: Met E-Energy Metering
10.24 Serial Port Communications and Commands Command Explanations The output from an SEL-351S with wye-connected voltage inputs is shown: =>MET D <Enter> FEEDER 1 Date: 02/01/97 Time: 15:08:05.615 STATION A NOTE : See Small Signal Cutoff for DEMAND 188.6 186.6 191.8...
Page 490: Met M-Maximum/Minimum Metering
Reset Time Last time the maximum/minimum meter was reset To view maximum/minimum metering values, enter the command: =>MET M <Enter> The output from an SEL-351S with wye-connected voltage inputs is shown: =>MET M <Enter> FEEDER 1 Date: 02/01/97 Time: 15:16:00.239...
Page 491: Qui Command (Quit Access Level)
MET PM commands entered without the time parameter will not affect any pending MET PM [time] commands. The output from an SEL-351S is shown: =>MET PM<Enter> Date: 03/31/2007 Time: 15:51:00.000...
Page 492: Ser Command (Sequential Events Recorder Report)
The SHO commands display only the enabled settings. To display all settings, including disabled/hidden settings, append an A to the SHO command (e.g., SHO 1 A). Below are sample SHO commands for the SEL-351S, showing the factory default settings (only model 0351Sxxx3 firmware version 7; see Table 1.2).
Page 493 =LT6 * PB7 * LT4 SET7 =!LT7 * PB8 * LT4 RST7 =LT7 * PB8 * LT4 SET8 (Continued on next page) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 494 Press RETURN to continue =FAULT SV10 SV11 SV12 SV13 SV14 SV15 SV16 OUT101=TRIP OUT102=CLOSE OUT103=0 OUT104=0 (Continued on next page) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 495 BKMON =TRIP E32IV =1 TMB1A =0 TMB2A =0 TMB3A =0 TMB4A =0 TMB5A =0 TMB6A =0 (Continued on next page) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 496 LED25L= Y LED26L= Y RSTLED= Y PB9D = 0.00 PB10D = 0.00 EPMU => =>SHO P <Enter> Port F PROTO = SEL SPEED = 2400 BITS PARITY= N STOP T_OUT = 15 AUTO RTSCTS= N FASTOP= N => =>SHO R <Enter>...
Page 497 (1–32767) to repeat the status display. If n is not specified, the status report is displayed once. A sample output of an SEL-351S is shown: =>STA <Enter> FEEDER 1 Date: 02/01/97 Time: 12:21:48.226...
Page 498: Sta Command Row And Column Definitions
Reboot the relay and clear status Are you sure (Y/N) ? If you select “N” or “n”, the relay displays: Canceled and aborts the command. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 499: Tar Command (Display Relay Element Status)
OGIC The TAR command does not remap the front-panel target LEDs, as is done in some previous SEL relays. But the execution of the equivalent TAR command via the front-panel display does remap the bottom row of the front-panel target 11.3, pushbutton {OTHER}).
Page 500: Table 10.6 Sel-351S Word And Its Correspondence To Tar Command
= 1 (SH1 = logical 1). Command TAR 35 will report the same data since the SH1 bit is in Row 35 of the Relay Word. Command TAR ROW LIST is executed in the following example (SEL-351S with 0.2 A nominal neutral channel): =>TAR ROW LIST <Enter>...
Page 501: Tim Command (View/Change Time)
TRI [time] commands. A TRI STA command may be used if a TRI [time] command is pending. The following shows the output from an SEL-351S: Triggered => If the serial port AUTO setting = Y, the relay sends the summary event report:...
Page 502: Bre N Command (Preload/Reset Breaker Wear)
Ext Trips= 0.3 IB= 0.8 IC= 1.5 kA Percent wear: A= 17 B= 3 C= LAST RESET 03/26/02 13:57:42 ==> Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 503: Clo Command (Close Breaker)
==> The relay switches to Group 2 and pulses the ALARM contact. If the serial port AUTO setting = Y, the relay sends the group switch report: SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 504: Ope Command (Open Breaker)
Date: 02/02/97 Time: 09:40:34.611 STATION A Active Group = 2 ==> If any of the SEL control equations settings SS1 through SS6 are asserted OGIC to logical 1, the active setting group may not be change with the GRO command—SEL...
Page 505: Con Command (Control Remote Bit)
=>> You must enter the same remote bit number in both steps in the command. If the bit numbers do not match, the relay responds SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 506: Table 10.7 Sel-351S Control Subcommand
Serial Port Communications and Commands 10.41 Command Explanations Invalid Command Table 10.7 SEL-351S Control Subcommand Subcommand Description SRB n Set Remote Bit n (“ON” position) CRB n Clear Remote Bit n (“OFF” position) PRB n Pulse Remote Bit n for 1/4 cycle (“MOMENTARY” position) Remote Control Switches on page 7.10...
Page 507: Pas Command (Change Passwords)
EDITH default password to a private password may allow unauthorized TAIL access. SEL shall not be responsible for any damage resulting from unauthorized access. The PASsword command allows you to change existing passwords at Access Level 2. To change passwords, enter PAS x, where x is the access level whose password is being changed.
Page 508: Table 10.9 Valid Password Characters
VER Command (Show Relay Configuration and Firmware Version) The VER command provides relay configuration and information such as nominal current input ratings. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 509 10.44 Serial Port Communications and Commands Command Explanations An example printout of the VER command for an SEL-351S follows: =>>VER <Enter> Partnumber: 0351S71H345B4XX Mainboard: 0311 Appearance: Horizontal, Conventional Data FLASH Size: 1024 KBytes Analog Input Voltage (PT): 300 Vac, Wye or Delta connected Analog Input Current (CT): 5 Amp Phase, 0.20 Amp Neutral...
Page 510: Command Summary
Show event report n in raw (unfiltered) format with 16 samples-per-cycle resolution. EVE n C Show event report n in compressed ASCII format for use with the SEL-5601 Analytic Assistant. EVE n A Show event report n with analog section only.
Page 511 Pulse output contact n (where n is one of ALARM, OUT101–OUT107, OUT201–OUT212) for k seconds. Specify parameter n; k = 1–30 seconds; if not specified, default is 1. Quit. Returns to Access Level 0. Terminates SEL Distributed Port Switch Protocol (LMD) connection. Show entire Sequential Events Recorder (SER) report.
Page 512 Change relay settings (overcurrent, reclosing, timers, etc.) for group n (n = 1–6, if not specified, default is active setting group). OGIC ® SET n L Change SEL control equation settings for group n (n = 1–6, if not specified, default is the SEL OGIC control equations for the active setting group). SET G Change global settings.
Page 513 SEL-351S Relay Command Summary Key Stroke Commands Key Stroke When Description Description Stroke Using SET Command Ctrl + Q Send XON command to <Enter> Retains setting and moves on to next setting. restart communications port output previously halted by XOFF.
Page 514: Section 11: Front-Panel Interface
Section 11 Front-Panel Interface Introduction This section describes how to get information, make settings, and execute control operations from the SEL-351S Relay front panel. It also describes the default displays. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 515: Front-Panel Pushbutton Operation
Secondary Primary Function q Secondary q From Figure 11.4. Figure 11.1 SEL-351S Front-Panel Pushbuttons—Overview Primary Functions Note in Figure 11.2 Figure 11.1 that the front-panel pushbutton primary functions correspond to serial port commands—both retrieve the same information or perform the same function. To get more detail on the...
Page 516: Figure 11.2 Sel-351S Front-Panel Pushbuttons-Primary Functions
Front-panel pushbutton functions that correspond to Access Level 1 serial port commands do not require the entry of the Access Level 1 password through the front panel. Figure 11.2 SEL-351S Front-Panel Pushbuttons—Primary Functions Front-Panel Password Security Refer to the comments at the bottom of Figure 11.3...
Page 517: Figure 11.3 Sel-351S Front-Panel Pushbuttons-Primary Functions (Continued)
Output contacts are pulsed for only one second from the front panel. Local control is not available through the serial port and does not require the entry of a password. Figure 11.3 SEL-351S Front-Panel Pushbuttons—Primary Functions (continued) Secondary Functions After a primary function is selected (see Figure 11.2...
Page 518: Figure 11.4 Sel-351S Front-Panel Pushbuttons-Secondary Functions
(Displays symbols: ← → ↑ ↓) EXIT Function Exit Entirely and Description Return to Default Display Figure 11.4 SEL-351S Front-Panel Pushbuttons—Secondary Functions Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 519: Functions Unique To The Front-Panel Interface
“last shot” value, which is a function of the number of set open intervals. There are two set open intervals in these example settings, thus two reclosures (shots) are possible in a reclose sequence. SEL-351S Relay Instruction Manual Date Code 20080103...
Page 520 If the relay trips the breaker open again, the reclosing relay goes to the lockout state (front-panel LO LED illuminates). The reclosing relay shot counter screen still appears as: Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 521: Figure 11.5 Local Control Switch Configured As An On/Off Switch
In more specific terms, local control asserts (sets to logical 1) or deasserts (sets to logical 0) what are called local bits LB1–LB16. These local bits are OGIC ® available as Relay Word bits and are used in SEL control equations (see Rows 25 and 26 in Table 9.6).
Page 522 Operate Local Control (With Example Settings) Press the right arrow pushbutton, and scroll back to the first set local control switch in the example settings: Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 523 MANUAL TRIP Local Control Switches on page 7.6 for details on how local bit outputs LB3 and LB4 can be set in SEL control equation settings to respectively OGIC trip and close a circuit breaker. Local Control State Retained When Relay De-Energized Local bit states are stored in nonvolatile memory, so when power to the relay is turned off, the local bit states are retained.
Page 524 EXAMPLE 11.1 Reclose Enable/Disable Function As an example setting, the reclose enable/disable function is provided by optoisolated input IN102 with the following SEL control OGIC...
Page 525: Rotating Default Display
52A (breaker status) DP2 = Optoisolated input IN102 is used as a recloser enable/disable in this example. Optoisolated Inputs on page 7.2. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 526 SHO Command (Show/View Settings) on page 10.27]. For more detailed information on the logic behind the rotating default display, Rotating Default Display on page 7.36. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 527 Cancel Press the {CANCEL} key to return to the {OTHER} menu. DATE TIME TAR BRK_MON LCD SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 528: Front-Panel Neutral/Ground Current Display
{TARGET RESET} pushbutton. Rotating Default Display Example Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 529: Operator Controls
Label Option for the Front Panel on page 2.9. Table 11.1 SEL-351S Front-Panel Operator Control Functions (Sheet 1 of 3) Press the {GROUND ENABLED} operator control pushbutton to enable/disable ground over- current element tripping. Corresponding LED illuminates to indicate the enabled state.
Page 530 Option: Set a delay, so the operator can press the {CLOSE} operator control pushbutton CLOSE CLOSED and then move a safe distance away from the breaker before the SEL-351S issues a close (the {CLOSE} operator control comes with no set delay in the factory settings). (Model 0351Sxxx3)
Page 531 OPEN Option: Set a delay, so the operator can press the {TRIP} operator control pushbutton and then move a safe distance away from the breaker before the SEL-351S issues a (Model 0351Sxxx3) trip (the {TRIP} operator control comes with no set delay in the factory settings). With...
Page 532: Figure 11.8 Operator Controls-{Ground Enabled}-{Lock
Note that the pushbutton output (e.g., Relay Word bit PB1 for the Pushbutton Output {GROUND ENABLED} operator control pushbutton) corresponds number-wise to setting LED1 for the GROUND ENABLED LED). the LED setting (e.g., SEL OGIC Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ...
Page 533: Figure 11.10 {Ground Enabled} Operator Control Pushbutton Output
Every time the {GROUND ENABLED} operator control pushbutton is pressed momentarily, Relay Word bit PB1 asserts to logical 1 immediately for one processing interval. The corresponding GROUND ENABLED LED (controlled by SEL setting OGIC LED1) is independent of the {GROUND ENABLED} operator control pushbutton.
Page 534: Trip} And {Close} Operator Control Pushbutton Outputs
OGIC If the {LOCK} operator control pushbutton is released before three seconds, the corresponding LED stops flashing and Relay Word bit PB5 is not pulsed. The LED returns to its regular operation, per SEL control equation setting LED5 (see OGIC Figure 11.21.
Page 535: Figure 11.12 {Close} Operator Control Pushbutton Output
LED9 (see Figure 11.9). OGIC If time delay setting PB9D is set PB9D >0, then the assertion of SEL setting OGIC ULCL (unlatch close) to logical 1 also aborts pending closes and prevents the {CLOSE} operator control pushbutton from starting a pending close in the first place.
Page 536: Ground Enabled} Operator Control
Momentarily press the {GROUND ENABLED} operator control pushbutton again and LT1 resets to logical 0 All latches (LT1–LT16) are nonvolatile (retain their state if the SEL-351S is powered down and then powered up again). The latch output (Relay Word bit...
Page 537: Figure 11.14 {Ground Enabled} Operator Control Led And Logic
11.24 Front-Panel Interface Operator Controls ➤ Drives the corresponding {GROUND ENABLED} operator control LED (SEL setting LED1 = LT1) to indicate that ground OGIC overcurrent tripping is enabled (LED is illuminated) or disabled (LED is extinguished). ➤ Drives the 51G1T residual-ground overcurrent element torque control equation (51G1TC = LT1) to enable or disable this factory-set element (TR = …...
Page 538: Figure 11.15 {Reclose Enabled} And {Hot Line Tag Enabled} Operator Control Logic
ENABLED} operator control is not functional from the factory (corresponding logic in Figure 6.1. It provides separate closing capability as shown in LED is extinguished all the time, too; SEL setting LED3 = 0, see OGIC Figure 2.31. Because of this, the {HOT Figure 11.8).
Page 539: Example Application For The {Remote Enabled} Operator Control
1 and vice versa, but LT6 is not used in any of the factory-set logic. Thus the {AUX 1} operator control is not functional from the factory (corresponding LED is extinguished all the time, too; SEL setting LED7 OGIC...
Page 540: Figure 11.19 {Aux 2} Operator Control Logic
SETTINGS} operator control. The {LOCK} operator control has to be OFF (LT4 = logical 1) in order for the {ALTERNATE SETTINGS} operator control to effectively function, and so that Relay Word bit PB4 can propagate on to: ➤ “select setting group” SEL settings SS1 and SS2 OGIC ➤...
Page 541: Figure 11.20 {Alternate Settings} Operator Control Led And Logic
11.11—see Note 1) again and LT4 resets page SET.25. to logical 0 All latches (LT1–LT16) are nonvolatile (retain their state if the SEL-351S is powered down and then powered up again). The latch output (Relay Word bit LT4) propagates to the following logic: ➤...
Page 542: Figure 11.21 {Lock} Operator Control Led And Logic
Figure 11.11; Figure 11.14; Figure 11.15; Figure 11.16; auxiliary close pushbutton. Figure 11.20; Figure 11.18; Figure 11.19; Figure 6.2. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 544: Introduction
Section 12 Standard Event Reports, Sag/Swell/Interruption Report, and SER Introduction The SEL-351S Relay offers two styles of event reports: ➤ Standard 15/30-cycle event reports ➤ Sequential events recorder (SER) report Resolution: 1 ms Accuracy: +1/4 cycle The event reports contain date, time, current, voltage, frequency, relay element, optoisolated input, output contact, and fault location information.
Page 545: Standard 15/30-Cycle Event Reports
Model Relay Word bit TRIP asserts, and an event report is automatically generated. 0351S 5/6/A/B. Thus, these conditions do not have to be entered in SEL control equation OGIC setting ER. Relay Word bit TRIP (in Figure 5.1) is usually assigned to an output contact...
Page 546 When setting ER sees a logical 0 to logical 1 transition, it generates an event report (if the SEL-351S is not already generating a report that encompasses the new transition). The factory setting is:...
Page 547: Table 12.1 Event Types
TRIP is displayed). control equation setting ER. Phase involvement is indeter- OGIC minate. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 548: Fault Location
Event Reports optoisolated inputs ➤ Protection and control elements ➤ Event summary ➤ Group, SEL control equations, and global settings OGIC Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 549 1/4-cycle resolution, with variable scaling of the analog values. If an event report is requested that does not exist, the relay responds: Invalid Event SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 550: Synchrophasor-Level Accuracy In Event Reports
12.7 Standard 15/30-Cycle Event Reports Synchrophasor-Level The SEL-351S provides the option to display event report data aligned to a high-accuracy time source by adding the P parameter. The header indicates the Accuracy in Event availability of a high-accuracy time source by displaying the status of Relay Reports Word bit TSOK.
Page 551 Relay Word bits. Filtered and The SEL-351S samples the basic power system measurands (ac voltage, ac current, station battery, and optoisolated inputs) 16 times per power system Unfiltered Event cycle. The relay filters the measurands to remove transient signals. The relay Reports operates on the filtered values and reports them in the event report.
Page 552: Table 12.2 Standard Event Report Current, Voltage, And Frequency Columns
10 A with 2 decimal places and data for voltages less than 10 kV with 3 decimal places. Example without variable scaling (EVE), wye-connected: Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 553: Output, Input, And Protection, And Control Columns
Output contact OUT101 asserted. Out 12 OUT101, OUT102 Output contact OUT102 asserted. Both OUT101 and OUT102 asserted. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 554 Single-phase instantaneous over- current element 50B picked up. Single-phase instantaneous over- current element 50C picked up. Both 50A and 50B picked up. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 555 R32I picked up. F32N Forward element F32N picked up (low-impedance grounded, Petersen Coil grounded [wattmetric element], and ungrounded/high-impedance grounded systems). SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 556 C-phase instantaneous under- voltage element 27C1 or 27C2 picked up. 27A_ and 27B_ elements picked 27B_ and 27C_ elements picked Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 557 B-phase instantaneous over- voltage element 59B1 or 59B2 picked up. C-phase instantaneous over- voltage element 59C1 or 59C2 picked up. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 558 59V1, 59Q Positive-sequence instantaneous (wye-connected) overvoltage element 59V1 picked Negative-sequence instantaneous overvoltage element 59Q picked Both 59V1 and 59Q picked up. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 559 Both 81D1 and 81D2 picked up. 81 34 81D3, 81D4 Frequency element 81D3 picked Frequency element 81D4 picked Both 81D3 and 81D4 picked up. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 560 Both LB1 and LB2 asserted. Lcl 34 LB3, LB4 Local bit LB3 asserted. Local bit LB4 asserted. Both LB3 and LB4 asserted. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 561 SV_T not asserted. Var 2 SV2, SV2T OGIC Var 3 SV3, SV3T OGIC Var 4 SV4, SV4T OGIC SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 562 Unblocking block 1 from DCUB logic UBB1 asserted. Unblocking block 2 from DCUB logic UBB2 asserted. Both UBB1 and UBB2 asserted. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 563 A receive IRRORED bit 3 RMB3A asserted. channel A receive IRRORED bit 4 RMB4A asserted. Both RMB3A and RMB4A asserted. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 564 B receive IRRORED bit 3 RMB3B asserted. channel B receive IRRORED bit 4 RMB4B asserted. Both RMB3B and RMB4B asserted. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 565 Level 3 A-phase power element PWR3A picked up. Level 4 A-phase power element PWR4A picked up. Both PWR3A and PWR4A picked SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 566 {REMOTE ENABLED} pushbutton output {ALTERNATE SETTINGS} pushbutton output {LOCK} pushbutton output {HOT LINE TAG} PB6 (see Figure 11.9) pushbutton output Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 567 Figure 7.27 Figure 7.28). Available in Firmware Version 7, when global setting PTCONN = WYE. Available in Firmware Version 7. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 568: Sequential Events Recorder (Ser) Report
512 rows of the SER report so they can be retained during power loss. The nonvolatile memory is rated for a finite Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 569: Retrieving Ser Reports
(bottom) of the report. Reverse chronological progres- sion through the report is down the page and in ascending row number. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 570: Clearing Ser Report
=>SER C <Enter> Clear the SER Are you sure (Y/N) ? Y <Enter> Clearing Complete Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 571: Example Standard 15-Cycle Event Report
) is not displayed in the unfiltered (raw) event report. The asterisk ( ) is only displayed in the filtered event report. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 572 ........ R.0 ..............R.0 ........ (Continued on next page) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 573: Figure 12.3 Example Standard 15-Cycle Event Report 1/4-Cycle Resolution
2689 2689 (settings follow, but are not shown in this example) Figure 12.3 Example Standard 15-Cycle Event Report 1/4-Cycle Resolution SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 574: Figure 12.4 Example Partial Event Report With Delta-Connected Pts
Figure 12.4 is not related to the event report sample in Figure 12.3, or to the SER sample in Figure 12.7. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 575: Figure 12.5 Derivation Of Event Report Current Values And Rms Current Values From Sampled
12.5, note that any two rows of current data from the event report in Figure 12.3, 1/4 cycle apart, can be used to calculate RMS current values. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 576: Figure 12.6 Derivation Of Phasor Rms Current Values From Event Report Current Values
The present sample (IA = 2317 A) is a real RMS current value that relates to the phasor RMS current value: ° 2749 A * cos 32.6 – 2317 A Equation 12.2 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 577: Example Ser Report
The following example SER report in Figure 12.7 also corresponds to the example standard 15-cycle event report in Figure 12.3. FEEDER 1 Date: 04/12/99 Time: 10:20:16.896 STATION A FID=SEL-351S-5-R100-VO-Z001001-D199908xx CID=2xxxx DATE TIME ELEMENT STATE 04/12/99 08:30:33.222 Relay newly powered up 04/12/99 09:20:22.830...
Page 578 Close output contact OUT102 asserts for first automatic reclose. Related settings: 79OI1 = 30.000 Time difference: 09:28:36.874 – 09:28:31.879 = 4.995 seconds (≅300 cycles) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 579: Sag/Swell/Interruption (Ssi) Report (Available In Firmware Version 7)
Figure 12.9 for an example SSI report. SSI Triggering and The SEL-351S-7 can perform automatic voltage disturbance monitoring for three-phase systems. The SSI Recorder uses the SSI Relay Word bits to Recording determine when to start (trigger) and when to stop recording. The recorded data is available through the SSI Report.
Page 580: Table 12.4 Ssi Element Status Columns
When global setting PTCONN = DELTA, a factor of √3 is applied so that Vbase is in the phase-to-phase scale. This causes a single “R” Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 581 ➢ Otherwise, if any SSI elements are asserted, switch to the medium recording mode. ➢ Otherwise, stop recording. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 582: Retrieving The Ssi Report
ESSI = N. Row 1 is the most recently triggered row. View the SSI report by Report date or SSI row number as outlined in the examples below. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 583 YMD, then the dates are entered Year/Month/Day. If the requested SSI event report rows do not exist, the relay responds: No Voltage Sag/Swell/Interruption Data SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 584 Vbase quantity when test voltages or settings are applied. This Recorder Logic could cause the recorder to declare a false SAG or SWELL condition when Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 585: Sample Ssi Report
Voltage(% Vbase) Vbase Ph ST Date Time (kV) 11/22/00 08:47:24.272 0 100 99 100 14.94 ... R (Continued on next page) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 586: Figure 12.8 Example Sag/Swell/Interruption (Ssi) Report (Ptconn = Wye)
12/05/00 16:21:12.644 26.48 ... P 12/05/00 16:21:12.648 26.48 ... P => Figure 12.9 Example Sag/Swell/Interruption (SSI) Report (PTCONN = DELTA) Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 587 For details on the ungrounded/high-impedance grounded and Petersen Coil directional elements, see Directional Control for Neutral Ground and Residual Ground Overcurrent Elements on page 4.9. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 588: Section 13: Testing And Troubleshooting
Testing and Troubleshooting Introduction This section provides guidelines for determining and establishing test routines for the SEL-351S Relay. Included are discussions on testing philosophies, methods, and tools. Relay self-tests and troubleshooting procedures are shown at the end of the section.
Page 589: Testing Philosophy
The paragraphs below describe when to perform each type of test, the goals of testing at that time, and the relay functions that you need to test at each point. This information is intended as a guideline for testing SEL relays. Acceptance Testing When: When qualifying a relay model to be used on the utility system.
Page 590: Maintenance Testing
What to test: Anything not shown to have operated during an actual fault within the past maintenance interval. SEL relays use extensive self-testing capabilities and feature detailed metering and event reporting functions that lower the utility dependence on routine maintenance testing.
Page 591 Testing and Troubleshooting Testing Philosophy At SEL, we recommend that maintenance tests on SEL relays be limited under the guidelines provided above. The time saved may be spent analyzing event data and thoroughly testing those systems that require more attention.
Page 592: Testing Methods And Tools
See Section 10: Serial Port Communications and Commands. Low-Level The SEL-351S has a low-level test interface between the calibrated input module and the separately calibrated processing module. You may test the Test Interface relay in either of two ways: ➤...
Page 593: Figure 13.1 Low-Level Test Interface (J1 Or J10) Connector
These scale result. factors are used in the SEL-5401 program, which is part of the SEL-RTS. CAUTION You can test the input module two different ways:...
Page 594 The examples below show the settings necessary to route the phase time- overcurrent element 51P1T to the output contacts and the SER. The 51P1T element, like many in the SEL-351S, is controlled by enable settings and/or OGIC ® torque control SEL control equations.
Page 595: Testing Via Sequential Events Recorder
Do not forget to reenter the correct relay settings when you are ready to place the relay in service. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 596: Relay Self-Tests
+14.40 V Pulsed Measures the 15 V power supply every 10 seconds. +15.60 V Failure +14.00 V Latched +16.00 V Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 597 Performs a checksum test on the nonvolatile copy of the relay settings every 10 seconds. The following self-tests are performed by dedicated circuitry in the microprocessor and the SEL-351S main board. Failures in these tests shut down the microprocessor and are not shown in the STATUS report.
Page 598: Relay Troubleshooting
Relay Does Not Respond to Faults 1. Relay improperly set. 2. Improper test source settings. 3. CT or PT input wiring error. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 599: Relay Meter Command Does Not Respond As Expected
2. Group Settings CTR, CTRN, PTR or PTRN not set correctly. 3. Relay analog inputs not connected correctly. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 600: Relay Calibration
Testing and Troubleshooting 13.13 Relay Calibration Relay Calibration The SEL-351S is factory-calibrated. If you suspect that the relay is out of calibration, please contact the factory. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 601: Factory Assistance
13.14 Testing and Troubleshooting Factory Assistance Factory Assistance We appreciate your interest in SEL products and services. If you have questions or comments, please contact us at: Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163-5603 Tel: +1.509.332.1890 Fax: +1.509.332.7990...
Page 602: Firmware And Manual Versions
The firmware revision number is after the R and the release date is after the D. The single x after SEL-351S is the firmware version number and will be a 5, 6, or 7, depending on the firmware features ordered with the relay:...
Page 603: Appendix A: Firmware And Manual Versions Firmware
Description of Changes Code This firmware differs from the previous version as follows: ➤ SEL-351S-x-R400-V0-Z008006-D20070117 Added support for new SEL Fast Message Synchrophasor pro- 20070117 tocol, event reporting, and metering. ➤ Changed default event report and compressed event report com- mand length to follow Global Setting LER.
Page 604 0.1 A to 0.02 A for 1 A nominal phase current inputs; from 0.5 A to 0.1 A for 5 A nominal phase current inputs). Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 605 VNOM = OFF. ➤ Added SEL Fast Sequential Events Recorder (SER) protocol. ➤ Added the following settings for all settings groups (for 0.2 A nominal neutral channel (IN) current input): 50NFP, 50NRP, a0N, 59RES, 32WFP, 32WRP, and 32WD.
Page 606 ➤ Improved fault locator event type determination during short duration faults, most likely seen during testing. ➤ Added setting choice to support SEL-DTA2 Display/Transducer Adapter in serial port AUTO settings. ➤ Lowered the minimum allowable setting for 27B81P (undervolt- age block for frequency elements) to 25.00 from 40.00 V sec- ondary.
Page 607: Instruction Manual
Setting Sheets ➤ Added Synchronized Phasor settings to Global settings. ➤ Updated serial communications baud rate range for Port 1. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 608 Section 10 ➤ Added new Relay Word bit definitions TSOK and TIRIG to IRIG-B section. ➤ Added new SEL Fast Message Synchrophasor protocol to communications protocol list. ➤ Added MET PM command explanation. ➤ Added time parameter to TRI command.
Page 609 Updated subsection: Auxiliary Trip and Close Pushbuttons. ➤ Added CT Saturation Protection information. ➤ Modified Output Contacts specification. ➤ Corrected typographical errors. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 610 Corrected Fast Operate reset description string for A5CD Fast Operate Reset Definition Block. This manual differs from the previous version as follows: Appendix A 20020725 ➤ Added firmware version information. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 611 Added subsection: Using Power Elements in the Relay Trip Equation. ➤ Added subsection: Single-Phase Power Element Calculations. ➤ Added subsection: Three-Phase Power Element Calculations. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 612 Added subsection: Extra Details for Displaying Time-Overcurrent Elements on the Rotating Default Display. Section 8 ➤ Updated subsections: Demand Metering, Energy Metering, and Maximum/ Minimum Metering. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 613 ORDER. ➤ Added Global Settings PTCONN and VSCONN. Section 10 ➤ Added SEL Fast Sequential Events Recorder (SER) Protocol. ➤ Added event-type options A, B, and C (for Petersen Coil grounded or ungrounded/high-impedance grounded systems), under HIS command. ➤...
Page 614 Updated CAS command response ➤ Updated CEV command response. Appendix G ➤ Updated Table G.3 to include the addition of new Relay Word bits to the SEL-351S. Appendix H ➤ Revised Table H.3 to reflect addition of delta PT configuration features. Appendix J ➤...
Page 615 Clarified firmware upgrade instructions. This manual differs from the previous version as follows: ➤ 20000803 Reissued the entire manual—Removed -5-6-7 from the manual title. Title now reads SEL-351S Instruction Manual. Sections 1, 2, 5, 6, 9, 11, 12 ➤ Added detail on new model 0351Sxxx5 with auxiliary trip/close pushbuttons.
Page 616 ➤ Added subsection Details on the Remote Control Switch MOMENTARY Position. ➤ Clarified the operation of the latch control switches when the SEL-351S loses power (see Latch Control Switches subsection). ➤ Corrected subsection Relay Disabled Momentarily During Active Setting Group Change.
Page 617 Corrected compressed ASCII data format line information. Appendix G ➤ Revised Figures G.1 and G.2. ➤ OGIC ® Revised SEL Control Equation settings limitations (see Table G.2). ➤ Corrected index error in Relay Summary Event Data paragraph. Appendix H ➤...
Page 618: Overview
SEL-300 Series Relays Firmware Upgrade Instructions Overview From time to time, SEL issues firmware upgrades for this relay. The instructions which follow explain how you can install new firmware in your SEL-300 series relay. In addition, SEL issues firmware upgrades for the...
Page 619: Optional Equipment
This upgrade guide will assist you with steps C, D, E, F, and G of these upgrade instructions. If you do not have the latest SEL-5010 software, please contact your customer service representative or the factory for details on getting the SEL-5010 Relay Assistant software.
Page 620: Figure B.1 Establishing A Connection
Check the computer for a label identifying the serial communications ports. b. Choose a port and connect an SEL Cable C234A (or equivalent) serial communications cable to the personal computer serial port. If there is no identification label, connect the cable to any computer serial port.
Page 621: Figure B.2 Determining The Computer Serial Port
SEL-300 Series Relays Firmware Upgrade Instructions Relay Firmware Upgrade Instructions Figure B.2 Determining the Computer Serial Port Step 6. Establish serial port communications parameters. The settings for the computer (Figure B.3) must match the relay settings you recorded earlier. a. Enter the serial port communications parameters (Figure B.3) that correspond to the relay settings you...
Page 622: Figure B.4 Setting Terminal Emulation
SEL-300 Series Relays Firmware Upgrade Instructions Relay Firmware Upgrade Instructions Figure B.4 Setting Terminal Emulation Step 8. Confirm serial communication. Press <Enter>. In the terminal emulation window, you should see the Access Level 0 = prompt, similar to that in Figure B.5.
Page 623: Figure B.6 Correcting The Port Setting
SEL-300 Series Relays Firmware Upgrade Instructions Relay Firmware Upgrade Instructions Figure B.6 Correcting the Port Setting Step 11. Correct the communications parameters: a. From the filename Properties dialog box shown in Figure B.6, click Configure. You will see a dialog box similar to Figure B.7.
Page 624: Backup Relay Settings
However, interruption of relay power during the upgrade process can cause the relay to lose settings. Make a copy of the original relay settings in case you need to reenter the settings. Use either the SEL-5010 Relay Assistant software or...
Page 625: Start Sel
Append line feeds to incoming line ends check box. (This feature can cause problems when uploading firmware to the relay.) Step 2. From the computer, start the SEL program: BOOT a. From the Access Level 2 prompt, type the =>>...
Page 626: Figure B.9 List Of Commands Available In Sel
After SEL loads, the computer will display the BOOT prompt. BOOT !> Step 4. Press <Enter> to confirm that the relay is in SEL BOOT You will see another SEL prompt. BOOT !> Commands Available in SEL...
Page 627: Figure B.10 Matching Computer To Relay Parameters
(Figure B.12), using the version number from the FID you recorded earlier in Step 1 on page B.8 and click OK. SEL lists the firmware revision number first, then the product number. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 628: Figure B.12 Example Filename Identifying Old Firmware Version
Verify that these hard drive. uncompressed files have an .s19 extension. Step 2. Type REC <Enter> at the SEL !> prompt to command BOOT the relay to receive new firmware.
Page 629: Figure B.14 Selecting New Firmware To Send To The Relay
If you want to reload the previous A successful restart sequence can take as long as two minutes, firmware, begin at Step 2 on page B.11 after which time the relay leaves SEL . You will see no and use the firmware you saved in BOOT Download Existing Firmware on display on your PC to indicate a successful restart.
Page 630: Figure B.15 Transferring New Firmware To The Relay
SEL-300 Series Relays Firmware Upgrade Instructions B.13 Relay Firmware Upgrade Instructions NOTE: The relay restarts in SEL BOOT if relay power fails while receiving new firmware. Upon power-up, the relay serial port will be at the default 2400 baud. Perform the steps beginning in B.
Page 631: Check Relay Self-Tests
B.14 SEL-300 Series Relays Firmware Upgrade Instructions Relay Firmware Upgrade Instructions Table B.1 Troubleshooting New Firmware Upload (Sheet 2 of 2) Problem Solution If you see a SEL !> prompt, type BOOT EXI <Enter> to exit SEL . Check for BOOT the Access Level 0 = prompt.
Page 632 Step 2. Type R_S <Enter> to restore factory default settings in the relay (type R_S 1 <Enter> for a 1 A SEL-387 or 1 A SEL-352 relay). The relay asks whether to restore default settings. If the relay does not accept the R_S (or R_S 1) command, contact your customer service representative or the factory for assistance.
Page 633: Verify Settings, Calibration, Status, Breaker Wear, And Metering
Step 7. Use the PAS command to set the relay passwords. For example, type PAS 1 <Enter> to set the Access Level 1 password. Use a similar format for other password levels. SEL relay passwords are case sensitive, so the relay treats lowercase and uppercase letters as different letters.
Page 634: Figure B.16 Preparing Hyperterminal For Id Command Display
SEL-300 Series Relays Firmware Upgrade Instructions B.17 Relay Firmware Upgrade Instructions Figure B.16 Preparing HyperTerminal for ID Command Display e. Click OK twice to return to the terminal emulation window. f. Type ID <Enter> and compare the number the relay displays against the number from the firmware envelope label.
Page 635: Return The Relay To Service
I. Return the Relay to Service Step 1. Follow your company procedures for returning a relay to service. Step 2. Autoconfigure the SEL communications processor port if you have an SEL communications processor connected to the relay. This step reestablishes automatic data collection between the SEL communications processor and the relay.
Page 636: Figure B.17 Establishing An Ftp Connection
SEL-300 Series Relays Firmware Upgrade Instructions B.19 Ethernet Port Firmware Upgrade Instructions Step 3. These instructions assume that the Ethernet port (PORT 5) settings are set as follows: IPADDR = 10.201.0.213 SUBNETM = 255.255.0.0 DEFRTR = 10.201.0.1 ETELNET = Y...
Page 637: Figure B.18 Alternate Method Of Establishing An Ftp Connection
B.20 SEL-300 Series Relays Firmware Upgrade Instructions Ethernet Port Firmware Upgrade Instructions Step 5. Click the Log On button. Figure B.18 Alternate Method of Establishing an FTP Connection Step 6. Right-click on the file that you would like to copy.
Page 638: Figure B.20 Page Cannot Be Displayed Window
SEL-300 Series Relays Firmware Upgrade Instructions B.21 Ethernet Port Firmware Upgrade Instructions Figure B.20 Page Cannot Be Displayed Window C. Transfer New Firmware Following the file transfer process, Ethernet communications will be halted, and the relay will reboot. The relay will take up to a minute to reinitialize after rebooting.
Page 639 B.22 SEL-300 Series Relays Firmware Upgrade Instructions Ethernet Port Firmware Upgrade Instructions Step 3. Verify that the STA report includes at the end Device Enabled of the report. Step 4. Verify that the STA report FID matches the FID of the firmware you transferred.
Page 640: Sel Distributed Port Switch Protocol
Appendix C SEL Distributed Port Switch Protocol SEL Distributed Port Switch Protocol (LMD) permits multiple SEL relays to share a common communications channel. It is appropriate for low-cost, low- speed port switching applications where updating a real-time database is not a requirement.
Page 641: Appendix C: Sel Distributed Port Switch Protocol Settings
Use the front-panel {SET} pushbutton or the serial port SET P command to activate the LMD protocol. Change the port PROTO setting from the default SEL to LMD to reveal the following settings: PREFIX: One character to precede the address. This should be a character that does not occur in the course of other communications with the relay.
Page 642: Operation
4. Until the relay connection terminates, you can use the standard commands that are available when PROTO is set to SEL. 5. The QUIT command terminates the connection. If no data are sent to the relay before the port time-out period, it automatically terminates the connection.
Page 643 This page intentionally left blank Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 644 Configuration, Fast Meter, and Fast Operate Commands Overview SEL relays have two separate data streams that share the same serial port. Data communications with the relay consist of ASCII character commands and reports that are intelligible using a terminal or terminal emulation package.
Page 645: Appendix D: Configuration, Fast Meter, And Fast Operate Commands
ASCII Firmware ID String and Terminal ID Setting (TID) ASCII Names of Relay Word bits ASCII Names of bits in the A5B9 Status Byte SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 646: Message Definitions
Fast peak message 0004 Settings change bit A5C100000000 Reconfigure Fast Meter on settings change 0300 SEL protocol with Fast Operate and fast message (unsolicited SER messaging) 0301 LMD protocol with Fast Operate and fast message (unsolicited SER messaging) 0005 DNP3...
Page 647 Scale factor offset in Fast Meter message 564241540000 Analog channel name (VBAT) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 648: Table D.5 A5D1 Fast Meter Data Block
Scale factors in meter message # of scale factors # of analog input channels # of samples per channel # of digital banks Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 649: Table D.6 A5C2/A5C3 Demand/Peak Demand Fast Meter Configuration Messages
Scale factor offset in Fast Meter message 50432B000000 Analog channel name (PC+) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 650 Scale factor offset in Fast Meter message 51412D000000 Analog channel name (QA-) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 651: Table D.7 A5D2/A5D3 Demand/Peak Demand Fast Meter Message
A5B9 Fast Meter In response to the A5B9 request, the relay clears the Fast Meter (message A5D1) Status Byte. The SEL-351S Status Byte contains one active bit, Status Acknowledge STSET (bit 4). The bit is set on power up and on settings changes. If the...
Page 652 Operate code, set remote bit RB12 Operate code, pulse remote bit RB12 Operate code, clear remote bit RB13 Operate code, set remote bit RB13 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 653: Table D.9 Afe0 Fast Operate Remote Bit Control
It is common practice to route remote bits to output contacts to provide remote control of the relay outputs. If you wish to pulse an output contact closed for a specific duration, SEL recommends using the remote bit pulse command and OGIC ®...
Page 654: Table D.10 A5E3 Fast Operate Breaker Control
D.11 Message Definitions control any of the output contacts (OUT101–OUT107). For example, to pulse output contact OUT104 for 30 cycles with Remote Bit RB4 and SEL OGIC control equation timer SV4, issue the following relay settings: Via the SET command:...
Page 655: Table D.12 A5Ed Fast Operate Reset Command
ID (BFID), firmware checksum (CID), relay TID setting (DEVID), ® Modbus device code (DEVCODE)—for use by SEL-2032, SEL-2030, and SEL-2020 Communications Processors), relay part number (PARTNO), and configuration string (CONFIG)—for use by other IEDs or software. A sample response is shown below; responses will differ depending on relay model, settings, and firmware.
Page 656 Configuration, Fast Meter, and Fast Operate Commands D.13 Message Definitions The DNA message for an SEL-351S with a 0.2 A nominal neutral channel (IN), is shown below: <STX> "TLED11","TLED12","TLED13","TLED14","TLED15","TLED16","TLED17","TLED18","yyyy" <CR><LF> "TLED19","TLED20","TLED21","TLED22","TLED23","TLED24","TLED25","TLED26","yyyy" <CR><LF> "50A1","50B1","50C1","50A2","50B2","50C2","50A3","50B3","yyyy"<CR><LF> "50C3","50A4","50B4","50C4","50AB1","50BC1","50CA1","50AB2","yyyy"<CR><LF> "50BC2","50CA2","50AB3","50BC3","50CA3","50AB4","50BC4","50CA4","yyyy"<CR><LF> "50A","50B","50C","51P1","51P1T","51P1R","51N1","51N1T","yyyy"<CR><LF> "51N1R","51G1","51G1T","51G1R","51P2","51P2T","51P2R","51N2","yyyy"<CR><LF> "51N2T","51N2R","51G2","51G2T","51G2R","51Q","51QT","51QR","yyyy"<CR><LF> "50P1","50P2","50P3","50P4","50N1","50N2","50N3","50N4","yyyy"<CR><LF> "67P1","67P2","67P3","67P4","67N1","67N2","67N3","67N4","yyyy"<CR><LF>...
Page 657: Bna Message
If there are more than eight settings in SER, the SNS message will have several rows. Each row will have eight strings, followed by the checksum and carriage return. The last row may have less than eight strings. The SNS message for the SEL-351S is shown below: <STX>"xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<CR><LF> "xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<CR><LF>...
Page 658: Appendix E: Compressed Ascii Commands
Appendix E Compressed ASCII Commands The SEL-351S Relay provides Compressed ASCII versions of some of the relay ASCII commands. The Compressed ASCII commands allow an external device to obtain data from the relay, in a format that directly imports into spreadsheet or database programs, and that can be validated with a checksum.
Page 659: Cascii Command-General Format
The Compressed ASCII configuration message provides data for an external computer to extract data from other Compressed ASCII commands. To obtain the configuration message for the Compressed ASCII commands available in an SEL relay, type: CAS <CR> The relay sends the following message: <STX>"CAS",n,"yyyy"<CR><LF>...
Page 660 Compressed ASCII Commands CASCII Command—General Format <STX>"No Data Available","0668"<CR><LF><ETX> Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 661: Cascii Command-Sel-351S
Compressed ASCII Commands CASCII Command—SEL-351S CASCII Command—SEL-351S Display the SEL-351S Compressed ASCII configuration message by sending: CAS <CR> The relay sends: <STX> "CAS",5,"yyyy"<CR><LF> "CST",1,"yyyy"<CR><LF> "1H","FID","yyyy"<CR><LF> "1D","45S","yyyy"<CR><LF> "7H","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR><LF> "1D","I","I","I","I","I","I","I","yyyy"<CR><LF> "23H","IA","IB","IC","IN","VA","VB","VC","VS","MOF","+5V_PS","+5V_REG", "-5V_REG","+12V_PS","-12V_PS","+15V_PS", "-15V_PS","TEMP","RAM","ROM","A/D","CR_RAM", "EEPROM","IO_BRD","yyyy"<CR><LF> "1D","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S", "9S","9S","9S","9S","9S","9S","9S","9S","yyyy"<CR><LF> "CHI",1,"yyyy"<CR><LF> "1H","FID","yyyy"<CR><LF> "1D","45S","yyyy"<CR><LF> "15H","REC_NUM","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC", "EVENT","LOCATION","CURR","FREQ","GROUP","SHOT","TARGETS", "yyyy"<CR><LF>...
Page 662: Cstatus Command-Sel-351S
Compressed ASCII Commands CSTATUS Command—SEL-351S CSTATUS Command—SEL-351S Display status data in Compressed ASCII format by sending: CST <CR> Relay models 0351x0 and 0351x send the following message: <STX>"FID","yyyy"<CR><LF> "Relay FID string","yyyy"<CR><LF> "MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR><LF> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR><LF> "IA","IB","IC","IN","VA","VB","VC","VS","MOF","+5V_PS","+5V_REG"," 5V_REG","+12V_PS","-12V_PS","+15V_PS","-15V_PS", "TEMP","RAM","ROM","A/D","CR_RAM","EEPROM","IO_BRD","yyyy"<CR><LF> ,"xxxx","xxxx","xxxx","xxxx","xxxx","xxxx", "xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx", "xxxx","xxxx","xxxx","xxxx","xxxx","xxxx",”xxxx”,"yyyy"<CR><LF><ETX> where:...
Page 663: Chistory Command-Sel-351S
Compressed ASCII Commands CHISTORY Command—SEL-351S CHISTORY Command—SEL-351S Display history data in Compressed ASCII format by sending: CHI <CR> The relay sends the following message: <STX>"FID","yyyy"<CR><LF> "Relay FID string","yyyy"<CR><LF> "REC_NUM","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC", "EVENT","LOCATION","CURR","FREQ","GROUP","SHOT","TARGETS", "yyyy"<CR><LF> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"xxxx",xxxx,xxxx,xxxx,xxxx,xxxx, "xxxx","yyyy"<CR><LF><ETX> (the last line is then repeated for each record)
Page 664: Cevent Command-Sel-351S
Compressed ASCII Commands CEVENT Command—SEL-351S CEVENT Command—SEL-351S Display event report in Compressed ASCII format by sending: CEV [n Sx Ly L R C] (parameters in [ ] are optional) where: n is event number (1–29) if LER = 15, (1–15) if LER = 30, defaults to 1 Sx is x samples per cycle (4 or 16);...
Page 665 <STX>"No Data Available","0668"<CR><LF><ETX> The "Names of Relay Word bits separated by spaces" field is shown below. (This sample taken from an SEL-351S-7 with the nominal neutral channel (IN) = 0.2 A.) "50A1 50B1 50C1 50A2 50B2 50C2 50A3 50B3 50C3 50A4 50B4 50C4 50AB1 50BC1 50CA1...
Page 666 Compressed ASCII Commands CEVENT Command—SEL-351S These names are listed in Table 9.6. Lists for other relay models may be derived from the appropriate tables in Section 9 of this manual, using the above format. A typical HEX-ASCII Relay Word is shown below:...
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Page 668: Appendix F: Setting Negative-Sequence Overcurrent Elements
Negative-sequence instantaneous overcurrent elements 50Q5 and 50Q6 do not have associated timers (compare Figure 3.13 Figure 3.12). If 50Q5 or 50Q6 OGIC ® need to be used for tripping, run them through SEL control equation variable timers (see Figure 7.25 Figure 7.26) and use the outputs of the timers for tripping.
Page 669: Setting Negative-Sequence Time-Overcurrent Elements
Coordinating Negative-Sequence Overcurrent Elements on page F.3 for guidelines on coordinating negative-sequence time- overcurrent elements and a following coordination example. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 670: Coordinating Negative-Sequence Overcurrent Elements
The coordination example is a generic example that can be used with any relay containing negative-sequence overcurrent elements that operate on 3I magnitude negative-sequence current. The SEL-351S can be inserted as the feeder relay in this example. Note that the overcurrent element labels in the example are not the same as the labels of the corresponding SEL-351S overcurrent elements.
Page 671: Coordination Example
The 450 A maximum feeder load current limits the sensitivity of the feeder phase overcurrent element, 51F, to a pickup of 600 A. The feeder relay cannot back-up the line recloser for phase faults below 600 A. SEL-351S Relay Instruction Manual Date Code 20080103...
Page 672: Apply The Feeder Relay Negative-Sequence Overcurrent Element
(lever) and curve type of the element remain the same (if the element is a definite-time element, the time delay remains the same). Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 673: Figure F.5 Negative-Sequence Overcurrent Element Derived From Equivalent Phase Overcurrent Element, 51Ep
SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 674: Other Negative-Sequence Overcurrent Element References
A. F. Elneweihi, “Useful Applications for Negative-Sequence Overcurrent Relaying,” 22nd Annual Western Protective Relay Conference, Spokane, Washington, October 24-26, 1995. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 676: Appendix G: Setting Sel Ogic Control Equations
OGIC Command SET L) on page SET.18). See the SHO Command (Show/View Settings) on page 10.27 for a list of the factory settings the SEL-351S Relay ships with in a standard relay shipment. Instruction Manual SEL-351S Relay Date Code 20080103...
Page 677: Relay Word Bits
Setting SEL Control Equations OGIC Relay Word Bits Relay Word Bits Most of the protection and control element logic outputs shown in the various figures in Section 3: Overcurrent, Voltage, Synchronism Check, Frequency, and Power Elements–Section 8: Breaker Monitor, Metering, and Load Profile Functions are Relay Word bits (labeled as such in the figures).
Page 678: Table G.2 Common Uses For Relay Word Bits 51P1, 51P1T, And 51P1R
Table G.2 Common Uses for Relay Word bits 51P1, 51P1T, and 51P1R Relay Word Common Use 51P1 testing (e.g., assign to an output contact for pickup testing) trip unlatch logic (see SEL control equation unlatch trip setting ULTR OGIC example later in this section) 51P1T...
Page 679 (like the preceding phase time-overcurrent element example) are rather unique because they have a Relay Word bit (e.g., 51P1R) that asserts for the reset state of the element. Relay Word bits are used in SEL control equations, which are explained OGIC in the following subsection.
Page 680: Sel Ogic Control Equations
OGIC shown in Table G.3. Control Equation Parentheses Operator ( ) OGIC More than one set of parentheses ( ) can be used in a SEL control OGIC control equation setting equation setting. For example, the following SEL OGIC has two sets of parentheses:...
Page 681: Sel Ogic Control Equation Not Operator
The NOT operator ! is applied to a single Relay Word bit and also to multiple elements (within parentheses). Following are examples of both. Example of NOT Operator ! Applied to Single Element The internal circuit breaker status logic in the SEL-351S operates on 52a circuit breaker auxiliary contact logic. The SEL control equation circuit OGIC breaker status setting is labeled 52A.
Page 682: Sel Ogic Control Equation Rising Edge Operator
Control Equation Rising Edge Operator / OGIC The rising edge operator / is applied to individual Relay Word bits only—not to groups of elements within parentheses. For example, the SEL control OGIC equation event report generation setting uses rising edge operators:...
Page 683: Figure G.1 Result Of Rising Edge Operators On Individual Elements In Setting Er
(element going from logical 1 to logical 0). The falling edge operator \ in front of a Relay Word bit sees this logical 1 to logical 0 transition as a “falling edge” and asserts to logical 1 for one processing interval. For example, suppose the SEL control equation event report generation OGIC...
Page 684: Figure G.2 Result Of Falling Edge Operator On A Deasserting Underfrequency Element
Figure G.2 Result of Falling Edge Operator on a Deasserting Underfrequency Element Control If tripping does not involve communications-assisted or switch-onto-fault trip OGIC logic, the SEL control equation trip setting TR is the only trip setting OGIC Equation Operation needed. Refer to Trip Logic on page 5.1.
Page 685 G.10 Setting SEL Control Equations OGIC Control Equations OGIC 50P1 = 1 (logical 1) With SH0 = 1 and 50P1 = 1, the ANDed combination results in: 50P1*SH0 = 1*1 = 1 (logical 1) and an instantaneous trip results. This logic is commonly used in fuse saving schemes for distribution feeders.
Page 686 OGIC 67P1TC–51QTC for the overcurrent elements. In the factory settings the SEL-351S ships with in a standard relay shipment, these are all set directly to logical 1. See these factory settings in SHO Command (Show/View Settings) on page 10.27.
Page 687: Table G.5 Sel Ogic Control Equation Settings Limitations
Relay Word bit. After SEL control equation settings changes have been made and the OGIC settings are saved, the SEL-351S responds with the following message: xxx Elements and yy Edges remain available indicating that Relay Word bits can still be used and...
Page 688: Processing Order And Processing Interval
Control Equations G.13 OGIC Processing Order and Processing Interval Processing Order and Processing Interval The relay elements and logic (and corresponding SEL control equation OGIC settings and resultant Relay Word bits) are processed in the order shown in Table G.6 (top to bottom).
Page 689 OGIC Processing Order and Processing Interval Table G.6 Processing Order of Relay Elements and Logic (Top to Bottom) (Sheet 2 of 3) Relay Elements and Logic Reference Order of processing of the SEL OGIC (related SEL Control Instruction OGIC Control Equations (listed in...
Page 690: Table G.7 Asynchronous Processing Order Of Relay Elements
OGIC Processing Order and Processing Interval Table G.6 Processing Order of Relay Elements and Logic (Top to Bottom) (Sheet 3 of 3) Relay Elements and Logic Reference Order of processing of the SEL OGIC (related SEL Control Instruction OGIC Control Equations (listed in...
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Page 692: Appendix H: Distributed Network Protocol
(Relay Word), contact I/O, targets, sequential events recorder, breaker has DNP. monitor, relay summary event reports, settings groups, and time synchronization. The SEL-351S supports DNP point re-mapping. Two modes of operation are available: ➤ Standard, for backwards and cross-platform compatibility ➤...
Page 693: Configuration
Class for Analog Event Data (0–3) CLASSB Class for Binary Event Data (0–3) CLASSC Class for Counter Event Data (0–3) SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 694 Seconds until Oldest Event to Tx on (0.0–60) UTIMEO Seconds to Event Message Confirm Time-out (1–50) 38400 is not available on Port 1. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 695: Eia-232 Physical Layer Operation
(i.e., MAXDLY and MINDLY). In addition, the SEL-351S monitors received data and treats receipt of data as a DCD indication. This allows RTS to be looped back to CTS in cases where the external transceiver does not support DCD.
Page 696: Data-Link Operation
Set the data-link time-out long enough to allow for the worst-case response of the master plus transmission time. When the SEL-351S decides to transmit on the DNP link, it has to wait if the physical connection is in use.
Page 697: Data Access Method
DNP connection. Table H.3 summarizes the main options, listed from least to most efficient, and corresponding key related settings are indicated. Table H.3 Data Access Methods Data Retrieval Relevant SEL-351S DNP Relevant SEL-351S DNPE Description Method (Standard) Settings (Extended) Settings...
Page 698: Device Profile
Distributed Network Protocol Device Profile Device Profile Table H.4 summarizes the device profile as specified in the DNP3 Subset Definitions document. Table H.4 SEL-351S DNP3 Device Profile (Sheet 1 of 2) Parameter Value Vendor name Schweitzer Engineering Laboratories Device name...
Page 699 Distributed Network Protocol Device Profile Table H.4 SEL-351S DNP3 Device Profile (Sheet 2 of 2) Parameter Value Default counter object/variation Object 20, Variation 6 Counter roll-over 16 bits Sends multifragment responses In all cases within the device profile that an item is configurable, it is controlled by SEL-351S settings.
Page 700: Object Table
Distributed Network Protocol Object Table Object Table The supported object, function, and qualifier code combinations are given by Table H.5. Table H.5 SEL-351S DNP Object Table (Sheet 1 of 5) Object Request Response Func. Qual. Func. Qual. Obj Var Description...
Page 701 H.10 Distributed Network Protocol Object Table Table H.5 SEL-351S DNP Object Table (Sheet 2 of 5) Object Request Response Func. Qual. Func. Qual. Obj Var Description Codes Codes Codes Codes 32-Bit Frozen Counter with Time of Freeze 16-Bit Frozen Counter with Time...
Page 702 Distributed Network Protocol H.11 Object Table Table H.5 SEL-351S DNP Object Table (Sheet 3 of 5) Object Request Response Func. Qual. Func. Qual. Obj Var Description Codes Codes Codes Codes 16-Bit Frozen Counter Event with Time 32-Bit Frozen Delta Counter...
Page 703 H.12 Distributed Network Protocol Object Table Table H.5 SEL-351S DNP Object Table (Sheet 4 of 5) Object Request Response Func. Qual. Func. Qual. Obj Var Description Codes Codes Codes Codes Analog Output Status—All Vari- 0,1,6,7,8 ations 32-Bit Analog Output Status...
Page 704 Distributed Network Protocol H.13 Object Table Table H.5 SEL-351S DNP Object Table (Sheet 5 of 5) Object Request Response Func. Qual. Func. Qual. Obj Var Description Codes Codes Codes Codes Small Packed Binary-Coded Decimal Medium Packed Binary-Coded Decimal Large Packed Binary-Coded...
Page 705: Data Map
The data map may change when newer versions of relay firmware with added capabilities are introduced. Table H.6 describes the default object map supported by the SEL-351S firmware version R108. Table H.6 SEL-351S DNP Data Map (Sheet 1 of 3) Object Index Description Type 01,02 000–499...
Page 706 Distributed Network Protocol H.15 Data Map Table H.6 SEL-351S DNP Data Map (Sheet 2 of 3) Object Index Description Type 30,32 10,11 VB magnitude (kV) and angle. 30,32 12,13 VC magnitude (kV) and angle. 30,32 14,15 VS magnitude (kV) and angle.
Page 707 H.16 Distributed Network Protocol Data Map Table H.6 SEL-351S DNP Data Map (Sheet 3 of 3) Object Index Description Type 30,32 Relay internal temperature 30,32 Number of unread faults 30,32 51P1P setting in primary units 30,32 51P2P setting in primary units...
Page 708: Table H.7 Analog 105 Upper Byte Definitions
Pulse RB2 Pulse RB1 Pulse RB2 Pulse RB1 Pulse RB4 Pulse RB3 Pulse RB4 Pulse RB3 Pulse RB4 Pulse RB3 Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 709: Relay Summary Event Data
With the LIFO method the relay event summaries will be collected in reverse chronological order, unless binary input point 1025 is set, which the master can use to identify when a newer relay event summary is available. SEL-351S Relay Instruction Manual Date Code 20080103...
Page 710 If binary output 23 is pulsed faster, some data may not be recognized and processed by the DNP event scanner. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 711: Point Remapping
For example, the first example remap could be produced with the following commands: SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 712 Save Changes (Y/N)? Y <Enter> =>DNP B Enter the new DNP Binary map <Enter> Save Changes (Y/N)? Y <Enter> => Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 714 1 of 2 Standard Mode DNP Port—SET P Command SEL-351S Settings Sheets Reference Manual Standard Mode DNP Port—SET P Command Protocol (SEL, LMD, DNP, DNPE, MBA, MBB, MB8A, PROTO = DNP MB8B) Baud rate (300, 600, 1200, 2400, 4800, 9600,19200, 38400) SPEED (38400 is not available on Port 1.)
Page 715 2 of 2 SEL-351S Settings Sheets Date________________ Extended Mode DNP Port—SET P Command Extended Mode DNP Port—SET P Command Protocol (SEL, LMD, DNP, DNPE, MBA, MBB, MB8A, PROTO = DNPE MB8B) Baud rate (300, 600, 1200, 2400, 4800, 9600,19200, 38400) SPEED (38400 is not available on Port 1.)
Page 716 Bits transmitted are called TMB1x through TMB8x, where x is the channel OGIC ® specifier (e.g., A or B), and are controlled by the corresponding SEL control equations. Bits received are called RMB1x through RMB8x and are usable as inputs to any SEL control equations.
Page 717: Appendix I: Mirrored Bits Communications (In Firmware Versions 6 And 7) Overview
IRRORED RMB8PU RMB_Pickup Debounce msgs (1–8) IRRORED RMB8DO RMB_Dropout Debounce msgs (1–8) IRRORED 38400 is not available on Port 1. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 718: Operation
➤ At 19200 and 38400 baud, one message is transmitted each 1/8 power system cycle for the SEL-321 and 1/4 power system cycle for the SEL-351 and the SEL-351S. Message Decoding The relay will deassert a user-accessible flag per channel (hereafter called...
Page 719: Loopback Testing
Therefore, a counter set to two will again delay a bit by about 1/2 cycle. However, in that same example, a security counter set to two on the SEL-351S will delay a bit by 1/4 cycle, because the SEL-351S is receiving new M messages each 1/8 cycle from the SEL-321.
Page 720 RBADx. When channel unavailability exceeds a user-settable threshold, the relay will assert a user accessible flag, hereafter called CBADx. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 721: Mirrored Bits Protocol For The Pulsar 9600 Baud Modem
19 idle bits at communications using this specification. The relay sets RTS IRRORED 9600 baud in an SEL-321 Relay with (to a positive voltage at the EIA-232 connector) for M the system frequency at 65 Hz. IRRORED...
Page 722: Settings
COMM records. See the COMM command in Section 10: Serial Port Communications and Commands for a description of the COMM records. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 723 Supervise the transfer of received data (or default data) to RMB1A–RMB8A with the M pickup and dropout security counters. Set the pickup IRRORED and dropout counters individually for each bit. SEL-351S Relay Instruction Manual Date Code 20080103 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 724 Date _______________ SEL-351S Settings Sheets 1 of 2 —SET P Command IRRORED SEL-351S Settings Sheets Reference Manual —SET P Command IRRORED Baud Rate (300–38400) (38400 is not available on Port 1) SPEED Enable Hardware Handshaking (Y,N,MBT) RTSCTS Seconds to M Rx Bad Pickup (1–10000)
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Page 726: Appendix J: Sel-351S Fast Ser Protocol
Fast SER messages from the SEL-351S Relay. SEL relays and communications processors have two separate data streams that share the same serial port. The normal serial interface consists of ASCII character commands and reports that are intelligible using a terminal or terminal emulation package.
Page 727: Make Sequential Events Recorder (Ser) Settings With Care
SEL-351S Fast SER Protocol Make Sequential Events Recorder (SER) Settings With Care Make Sequential Events Recorder (SER) Settings With Care The relay triggers a row in the Sequential Events Recorder (SER) event report for any change of state in any one of the elements listed in the SER1, SER2, or SER3 trigger settings.
Page 728: Recommended Message Usage
Unsolicited Fast SER Data Transfer” message to enable the SEL-351S to transmit unsolicited binary Fast SER messages. 2. When SER records are triggered in the SEL-351S, the relay responds with an unsolicited binary Fast SER message. If this message has a valid checksum, it must be acknowledged by sending an acknowledge message with the same response number as contained in the original message.
Page 729: Functions And Function Codes
This function enables the SEL-351S to begin sending unsolicited data to the Enable Unsolicited device that sent the enable message, if the SEL-351S has such data to transfer. Fast SER Data The message format for function code 01 is shown in Table J.1.
Page 730: Table J.2 02 Function Code Message Format
18—Function: The function 18 is used for the transmission of unsolicited Fast Sequential Events Recorder (SER) data from the SEL-351S. This function code is also Unsolicited Fast SER passed as data in the “Enable Unsolicited Data Transfer” and the “Disable Response, Sent From Unsolicited Data Transfer”...
Page 731: Table J.4 Message Format For Lost Ser Records
SEL-351S Fast SER Protocol Functions and Function Codes Table J.3 Function Code 18 Message Format (Sheet 2 of 2) Data Description dddd Two-byte day of year (1–366) yyyy Two-byte, four-digit year (e.g., 1999 or 07CF hex) mmmmmmmm Four-byte time of day in milliseconds since midnight 1st element index (match with the response to the SNS command;...
Page 732: Acknowledge Message Sent From Master To Relay, And From Relay To Master
Response number (XX = 00, 01, 02, 03, 00, 01, ...) must match response number from message being acknowledged.) cccc Two byte CRC-16 checkcode for message The SEL-351S supports the response codes in Table J.6. Table J.6 Supported Response Codes Response Success.
Page 733 SEL-351S Fast SER Protocol Functions and Function Codes 5. Successful acknowledge message from the master for an unsolicited Fast SER message: A5 46 0E 00 00 00 00 00 00 98 00 XX cccc (XX is the same as the response number in the unsolicited Fast SER message to which it responds.)
Page 734: Appendix K: Ac Sel Erator Quickset Sel-5030 Software
SEL-5030 Software Introduction ERATOR ® ™ QuickSet SEL-5030 software is an easy-to-use, yet powerful tool to help you get the most out of your SEL-351S Relay. Using QuickSet, you will be able to: ERATOR ➤ ® Create, test, and manage settings with a Windows interface.
Page 735: Ac Sel Erator Quickset System Requirements
NOTE: Using QuickSet ERATOR ® CPU: Pentium class (recommended 90 MHz or faster) in SEL-351S relays requires relay ® Operating System: Windows 95/98 with 16 MB ram (32 MB ram Firmware Version R104 or later. recommended) ® Windows NT 4 SP3 or later with 32 MB ram (64...
Page 736: Installation
Step 1. Close all other software applications on the PC. Step 2. Insert the QuickSet SEL-5030 software CD ERATOR into the PC CD-ROM drive. The installation program should start automatically. If the installation program does not start, select Run from the Windows Start menu and type the following command: D:\SETUP (substitute D:\ with the PC CD-ROM drive letter).
Page 737: Starting Ac Sel Erator Quickset
QuickSet in the following ways: ERATOR Step 1. Double-click the QuickSet icon if you have a ERATOR desktop shortcut. Step 2. Choose Programs > SEL Applications and select the QuickSet icon to start the program. ERATOR SEL-351S Relay Instruction Manual Date Code 20080103...
Page 738: Appendix Lsel Synchrophasors
The SEL-351S provides Phasor Measurement Control Unit (PMCU) capabilities when connected to an IRIG-B time source with an accuracy of ±10 μs or better. Synchrophasor data are available via the MET PM ASCII command and the SEL Fast Message Unsolicited Write message. Instruction Manual SEL-351S Relay Date Code 20080103 Artisan Technology Group - Quality Instrumentation ...
Page 739: Introduction
When synchrophasor measurement is enabled, the SEL-351S creates the synchrophasor data set at a user-defined rate. Synchrophasor data are available in ASCII format over a serial port set to PROTO = SEL. Synchrophasor data is collected with an SEL communications processor (i.e., SEL-2032) or a dedicated synchrophasor processor.
Page 740: Synchrophasor Measurement
Synchrophasor values are available for the full frequency range of the SEL-351S. Figure L.1 Phase Reference The TSOK Relay Word bit asserts when the SEL-351S has determined that the IRIG-B time source has sufficient accuracy and the synchrophasor data meets the specified accuracy. Synchrophasors are still measured if the time source threshold is not met, as indicated by Relay Word bit TSOK = logical 0.
Page 741: External Equipment Compensation
SEL Synchrophasors External Equipment Compensation External Equipment Compensation The instrumentation transformers (PTs or CTs) and the interconnecting cables may shift the measured signal, as shown in Figure L.2. The angular shift is entered into the relay as Global settings VCOMP and...
Page 742: Protocol Operation
SEL Application Guide AG2002-08 provides additional information on the SEL Fast Message Synchrophasor protocol and example applications. This application guide refers to the SEL-421 Relay and differs slightly from the SEL-351S implementation. Table L.1 SEL Fast Message Protocol Format Field...
Page 743: Table L.2 Unsolicited Fast Message Enable Packet
(if an acknowledgement was requested) and begin transmitting synchrophasors. If the requested message period is not permitted, the SEL-351S will respond with a bad data message (if an acknowledge was requested), and will not transmit any synchrophasor data.
Page 744: Table L.4 Permissible Message Periods Requested By Enable Message
SEL Synchrophasors Protocol Operation Table L.4 Permissible Message Periods Requested by Enable Message Fast Messages Sent This Number of Fast Message Period (Hex) Number of Seconds After Messages per Minute the Top of Each Minute 0064h 0,1,2,3,4,5,...,59 00C8h 0,2,4,6,8,10,...58 012Ch 0,3,6,9,12,15,...57...
Page 745: Settings
FASTOP Fast Operate Enable (Y, N) Some of the other PROTO setting choices may not be available. Set PROTO = SEL to enable (on this port) the SEL Fast Message Synchrophasor protocol. Maximum Port 1 speed is 19200. SEL-351S Relay...
Page 746: Descriptions Of Synchrophasor Settings
PMID specifies the memory location for data storage. In this case the upper-most byte indicates the communications processor port and the lower two bytes specify the user region address for that port. See the SEL-2032 Communications Processor Instruction Manual for more details.
Page 747 UTC offset, time quality information, a year, and a parity bit. The SEL-351S qualifies the IRIG field to ensure that the time is valid, checks for a time quality value better than or equal to ±10 us, and checks for the consistent parity.
Page 748: Synchrophasor Relay Word Bits
Time Synchronization OK. Asserts while time accuracy is of sufficient accu- racy for synchrophasor measurement and satisfies TS_TYPE requirements. PMDOK Phasor Measurement Data OK. Asserts when the SEL-351S is enabled, syn- chrophasors are enabled (Global setting EPMU = Y), and TSOK is asserted. Instruction Manual...
Page 749: View Synchrophasors By Using The Met Pm Command
Figure L.4. The MET PM [time] command can be used to direct the SEL-351S to display the synchrophasor for an exact specified time, in 24-hour format. For example, entering the command MET PM 14:14:12 will result in a response similar to Figure L.4...
Page 750: Figure L.4 Sample Met Pm Command Response
SEL Synchrophasors L.13 View Synchrophasors by Using the MET PM Command =>MET PM <Enter> Date: 03/31/2007 Time: 15:51:00.000 Time Quality Maximum time synchronization error: 0.000 (ms) TSOK = 1 Synchrophasors Phase Voltages Pos. Sequence Voltage MAG (kV) 11.691 11.686 11.669 11.682...
Page 751: Communications Bandwidth
Fast Message Synchrophasor format is the only data stream transmitted; additional data streams will necessitate a higher SPEED setting. Table L.8 SEL Fast Message Voltage and Current Selections Based on PHDATAV and PHDATAI Number of Synchrophasor Magnitude and...
Page 752: Sel-351S Relay Command Summary
Show event report n in raw (unfiltered) format with 16 samples-per-cycle resolution. EVE n C Show event report n in compressed ASCII format for use with the SEL-5601 Analytic Assistant. EVE n A Show event report n with analog section only.
Page 753: Elements
Pulse output contact n (where n is one of ALARM, OUT101–OUT107, OUT201–OUT212) for k seconds. Specify parameter n; k = 1–30 seconds; if not specified, default is 1. Quit. Returns to Access Level 0. Terminates SEL Distributed Port Switch Protocol (LMD) connection. Show entire Sequential Events Recorder (SER) report.
Page 754: Display
Change relay settings (overcurrent, reclosing, timers, etc.) for group n (n = 1–6, if not specified, default is active setting group). OGIC ® SET n L Change SEL control equation settings for group n (n = 1–6, if not specified, default is the SEL OGIC control equations for the active setting group). SET G Change global settings.
Page 755 SEL-351S Relay Command Summary Key Stroke Commands Key Stroke When Description Description Stroke Using SET Command Ctrl + Q Send XON command to <Enter> Retains setting and moves on to next setting. restart communications port output previously halted by XOFF.
Page 756 Show event report n in raw (unfiltered) format with 16 samples-per-cycle resolution. EVE n C Show event report n in compressed ASCII format for use with the SEL-5601 Analytic Assistant. EVE n A Show event report n with analog section only.
Page 757: Irrored Bits Irrored Bits
Pulse output contact n (where n is one of ALARM, OUT101–OUT107, OUT201–OUT212) for k seconds. Specify parameter n; k = 1–30 seconds; if not specified, default is 1. Quit. Returns to Access Level 0. Terminates SEL Distributed Port Switch Protocol (LMD) connection. Show entire Sequential Events Recorder (SER) report.
Page 758 Change relay settings (overcurrent, reclosing, timers, etc.) for group n (n = 1–6, if not specified, default is active setting group). OGIC ® SET n L Change SEL control equation settings for group n (n = 1–6, if not specified, default is the SEL OGIC control equations for the active setting group). SET G Change global settings.
Page 759 SEL-351S Relay Command Summary Key Stroke Commands Key Stroke When Description Description Stroke Using SET Command Ctrl + Q Send XON command to <Enter> Retains setting and moves on to next setting. restart communications port output previously halted by XOFF.

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