Schweitzer Engineering Laboratories SEL-352-1 Instruction Manual
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Schweitzer Engineering Laboratories SEL-352-1 Instruction Manual

Breaker failure relay; control relay; data recorder
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Table of Contents

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SEL-352-1, -2
BREAKER FAILURE RELAY
CONTROL RELAY
DATA RECORDER
INSTRUCTION MANUAL
SCHWEITZER ENGINEERING LABORATORIES
2350 NE HOPKINS COURT
PULLMAN, WA USA 99163-5603
TEL: (509) 332-1890
FAX: (509) 332-7990

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  • Page 1 SEL-352-1, -2 BREAKER FAILURE RELAY CONTROL RELAY DATA RECORDER INSTRUCTION MANUAL SCHWEITZER ENGINEERING LABORATORIES 2350 NE HOPKINS COURT PULLMAN, WA USA 99163-5603 TEL: (509) 332-1890 FAX: (509) 332-7990...
  • Page 2 You may not copy, alter, disassemble, or reverse-engineer the software. You may not provide the software to any third party. All brand or product names appearing in this document are the trademark or registered trademark of their respective holders. Schweitzer Engineering Laboratories, SEL , Connectorized, Job Done, SEL-PROFILE, and...
  • Page 3 Breaker Resistor Thermal Report, Metering Report, Status Report, and Relay Word Bit Report subsections from previous Section 7: Data Recording Application; dropped the word “Report” from these subsection titles and changed subsection Status Report to Status Monitor. Date Code 20010731 Manual Change Information SEL-352-1, -2 Instruction Manual...
  • Page 4 Section 9: added information about DNP; made text changes throughout the section to advise the user to change default passwords to private, strong passwords at installation; updated Figure 9.2: Access Level Relationships. Section 11: made typographical corrections. Manual Change Information Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 5 Added note about making Sequential Events Recorder settings with care (page 9-36). Appendix A: œ Reformatted the appendix and added firmware SEL-352-1-R103 and SEL-352-2-R101 which support a battery-backed clock hardware change. Date Code 20010731 Manual Change Information SEL-352-1, -2 Instruction Manual...
  • Page 6 Compressed ASCII Commands, and Appendix F: Relay Word. Added 110 Vdc level-sensitive input option to Section 3: Specifications and Appendix G: Optional I/O Board Specifications. 20000104 Appendix A: œ Added Firmware Version SEL-352-1-R102. 990623 Section 3: œ Changed voltage in 59V Setting Range. Section 4: œ...
  • Page 7 Connectorized version has been created, employing plug-in connectors for relay power, ac analog inputs, and dc control inputs/outputs. 980102 New manual for SEL-352-1 Relay was created from last revision of SEL-352 Relay, dated 970820. The SEL-352-1 Relay will replace the SEL-352 Relay as the standard relay offering.
  • Page 9 SEL-352-1, -2 INSTRUCTION MANUAL TABLE OF CONTENTS SECTION 1: INTRODUCTION AND SPECIFICATIONS SECTION 2: INSTALLATION SECTION 3: BREAKER LOGIC SECTION 4: CLOSE LOGIC SECTION 5: CONTROL LOGIC SECTION 6: METERING AND MONITORING SECTION 7: SETTING THE RELAY SECTION 8: SERIAL PORT COMMUNICATIONS AND COMMANDS...

  • Page 11: Table Of Contents

    Relay Functions ..........................1-3 Breaker Failure Detection..................... 1-3 Control Features........................1-4 Data Recording ........................1-4 Additional Features....................... 1-4 Model Options ..........................1-5 SEL-352-1 Relay ........................1-5 SEL-352-2 Relay ........................1-5 Conventional Terminal Blocks ..................... 1-5 ® Plug-In Connectors (Connectorized )................... 1-5 Interface Boards........................

  • Page 13: Introduction And Specifications

    Section 3: Breaker Logic to learn about predefined SEL-352 Relay logic schemes that provide protection against several types of circuit breaker failure. Section 4: Close Logic to understand use of the SEL-352 Relay in implementing automatic and manual circuit breaker closing. Date Code 20010731 Introduction and Specifications SEL-352-1, -2 Instruction Manual...
  • Page 14 Section 2: Installation to learn how to configure, install, and wire your relay. Section 11: Testing and Troubleshooting for test procedures and a troubleshooting guide. You can use this section as a tutorial to check your understanding of relay operation. Introduction and Specifications Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 15: Relay Functions

    If trip or close resistors remain in service after an operation, the relay detects this failure using a thermal model. Date Code 20010731 Introduction and Specifications SEL-352-1, -2 Instruction Manual...

  • Page 16: Control Features

    You can enter and modify relay settings remotely; you can also control all outputs via the communications channel. Introduction and Specifications Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 17: Model Options

    PTIONS SEL-352-1 Relay The SEL-352-1 Relay has provided sophisticated and reliable service for many years. It continues to satisfy the needs of most of our customers. However, we recommend using the SEL-352-2 Relay for new designs because of the additional features it provides.

  • Page 18: Interface Boards

    1.18 1.08 2.40 1.80 1.23 1.11 2.55 1.89 1.28 1.14 2.70 1.99 1.35 1.17 2.86 2.09 Relay Measurement Correction Factor = Input Signal Level • Figure 1.3: Analog Filter Curve Introduction and Specifications Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 19: General Specifications

    Ripple: 100% Rated: 24/48 Vdc Range: 20–60 Vdc polarity dependent Burden: <25 W Interruption: 30 ms at 48 Vdc Ripple: Note: Interruption and Ripple per IEC 60255-11 [IEC 255-11]: 1979. Date Code 20010731 Introduction and Specifications SEL-352-1, -2 Instruction Manual...
  • Page 20 Note: 24, 48, 125 Vdc optoisolated inputs draw approximately 4 mA of current, 110 Vdc inputs draw approximately 8 mA of current, and 250 Vdc inputs draw approximately 5 mA of current. All current ratings are at nominal input voltage. Introduction and Specifications Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 21 SEL-9103 front cover dust and splash protection (type test) Surge Withstand Capability: IEEE C37.90.1: 1989, 3000 V oscillatory, 5000 V fast transient Note: * = Terminal Block version only. Date Code 20010731 Introduction and Specifications SEL-352-1, -2 Instruction Manual...

  • Page 22: Relay Element Specifications

    0.9 cycle at 2 multiples of pickup dropout time ....................less than 1.125 cycles pickup and dropout............±0.01 ¼ I A secondary ±5% of setting transient overreach ....................±5% of setting 1-10 Introduction and Specifications Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 23: Pickup/Dropout Curves

    Output contact times are not included. F O H & \ 0HDQ 8ˆ……r‡ÃvÃHˆy‡vƒyr†Ã‚sÃTr‡‡vt 9XB)ÃH"$! # Figure 1.4: 50FT Pickup Curves F O H 0HDQ & \ 8ˆ……r‡ÃvÃHˆy‡vƒyr†Ã‚sÃTr‡‡vt 9XB)ÃH"$! #! Figure 1.5: 50FT Dropout Curves Date Code 20010731 Introduction and Specifications 1-11 SEL-352-1, -2 Instruction Manual...

  • Page 24: Figure 1.6: 50Mn, 50Ld, 50Md, 50N Pickup Curves

    Figure 1.6: 50MN, 50LD, 50MD, 50N Pickup Curves 0HDQ &XUUHQW LQ 0XOWLSOHV RI 6HWWLQJ 9XB)ÃH"$! ## 01 LV IL[HG DW  Â ,QRP Figure 1.7: 50MN, 50LD, 50MD, 50N Dropout Curves 1-12 Introduction and Specifications Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 25: Voltage Elements

    • ±5% of setting 25AM Maximum Manual Close Angle setting range ....................32·(25SM) to 90°, min = 1°, 0.1° steps pickup and dropout..................±0.5 • ±5% of setting Date Code 20010731 Introduction and Specifications 1-13 SEL-352-1, -2 Instruction Manual...

  • Page 26: Current Unbalance Element

    Failure of Breaker 52A Contact to Indicate Operation Pending Failure Timer 62FF Flashover Failure Timer 62FP Flashover Pending Failure Timer 62UC Phase Discordance Close Input Pickup Timer 62OP Trip and Close Resistor Heating Pickup Timer 1-14 Introduction and Specifications Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 27: Fixed Timers

    Breaker Alarm Dropout Timer ..................60 cycles 62OI Operation Input Dropout Timer for Breaker Alarms...........5 cycles 62BDNC BDNC Breaker Alarm Close Inputs Pickup Timer ..........3 seconds 62TWO Trip Input Dropout Debounce Timer..............0.25 cycles Date Code 20010731 Introduction and Specifications 1-15 SEL-352-1, -2 Instruction Manual...

  • Page 28: Metering

    ..................... ms energy units ......................MJ, primary current units......................A, primary breaker contact wear (SEL-352-2 Relay only) ..............% number of operations displayed..................512 other relay elements determine accuracy 1-16 Introduction and Specifications Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 29: Serial Port Specifications

    EIA-232 with IRIG-B input and +5 Vdc output. Maximum total current draw on +5 Vdc supply through serial ports is 1 A. Port 3 EIA-232 with +5 Vdc output Port 4 EIA-232 Date Code 20010731 Introduction and Specifications 1-17 SEL-352-1, -2 Instruction Manual...
  • Page 31 Interface Board 4 (4 Outputs, 16 Inputs)................2-28 Optoisolated Inputs..................... 2-28 Output Contacts ......................2-28 Interface Board 5 (8 Outputs, 8 Inputs)................2-30 Optoisolated Inputs..................... 2-30 Output Contacts ......................2-30 Interface Board 6 (12 Outputs, 8 Inputs)................2-33 Date Code 20010731 Installation SEL-352-1, -2 Instruction Manual...
  • Page 32 Figure 2.32: Interface Board 6 Output Contacts (Board Position 2) ............2-33 Figure 2.33: Interface Board 6 Component Layout (Screw-Terminal Block Version)......2-34 Figure 2.34: Interface Board 6 Component Layout (Plug-In Connector Version)......... 2-35 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 33: Installation

    Insert the relay into the cutout, aligning four relay mounting studs on the rear of the relay with the drilled holes in your panel, and use nuts to secure the relay to the panel. Date Code 20010731 Installation SEL-352-1, -2 Instruction Manual...

  • Page 34: Dimensions And Cutout

    Dimensions and Cutout Figure 2.1: Dimension Drawing and Panel-Mount Cutout Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 35 Figure 2.2: Front-Panel Drawings–Models 0352x0xxxH and 0352x1xxxH Date Code 20010731 Installation SEL-352-1, -2 Instruction Manual...
  • Page 36 Figure 2.3: Front-Panel Drawing–Model 0352x2xxxH Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 37 Figure 2.4: Front-Panel Drawings–Models 0352x0xxx3 and 0352x1xxx3 Date Code 20010731 Installation SEL-352-1, -2 Instruction Manual...
  • Page 38 Figure 2.5: Front-Panel Drawing–Model 0352x2xxx3 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 39: Rear-Panel Connections

    WA03520YxxxA, where x designates wire sizes and length. You can find the model option table on the SEL website at http://www.selinc.com. Refer to Figure 2.8 to make all Connectorized connections. Date Code 20010731 Installation SEL-352-1, -2 Instruction Manual...
  • Page 40 Figure 2.6: Rear-Panel Drawings–Models 0352x0xxxxX and 0352x1xxxx1 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 41 Figure 2.7: Rear-Panel Drawing–Model 0352x2xxxx15 Date Code 20010731 Installation SEL-352-1, -2 Instruction Manual...
  • Page 42 Figure 2.8: Rear-Panel Drawings–Models 0352xYxxxx2 and 0352xYxxxx6 2-10 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 43: Connections

    General Specifications in Section 1: Introduction and Specifications for optoisolated input ratings. There are no internal connections between inputs. ON and OFF values are normally within one volt of each other, in the indicated range. Date Code 20010731 Installation 2-11 SEL-352-1, -2 Instruction Manual...

  • Page 44: Output Contacts

    High Current Interrupting dry output contacts are polarity dependent and are represented by Figure 2.11. Notice the polarity mark above terminal A02. Reversed polarity appears as a short across the contact terminals. 2-12 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 45: Communications Port

    To connect the SEL-352 Relay Port 2 to the SEL-2020 or SEL-2030 Communications Processor that supplies the communication link and the time-synchronization signal, order cable number C273A and specify the length needed. For connecting devices at more than 100 feet, Date Code 20010731 Installation 2-13 SEL-352-1, -2 Instruction Manual...

  • Page 46: Clock Synchronization, Irig-B

    The SEL-WA0352 wiring harness includes the following connectors (not pre-wired): œ Two eight-position female plug-in connectors for output contacts OUT101 through OUT104 and OUT105 through ALARM. 2-14 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 47 The current transformer shorting connector (for current channel inputs IA, IB, IC, and IN) has been made more robust. This improvement makes the new connector design incompatible with the old design. Thus, presently constructed Connectorized SEL-352 Date Code 20010731 Installation 2-15 SEL-352-1, -2 Instruction Manual...

  • Page 48: Typical Ac/Dc Connections

    Figure 2.8 shows the rear panel for the new model 0352xY. This figure can also be used as a reference for the old model 0352xJ. All terminal labeling/numbering remains the same. AC/DC C YPICAL ONNECTIONS Figure 2.13: SEL-352 Relay Typical External AC Connections 2-16 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 49: Circuit Board Configuration

    – (Z26). Accomplish this easily on Connectorized relays by removing the connector at rear-panel terminals + (Z25) and – (Z26). 2. Remove any cables connected to serial ports on the front and rear panels. Date Code 20010731 Installation 2-17 SEL-352-1, -2 Instruction Manual...

  • Page 50: Main Board

    “a” contacts. This is the normal configuration of these jumpers in a standard relay shipment. The additional I/O boards have slightly different layout locations for the jumpers relative to the corresponding output contacts. 2-18 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 51 Figure 2.16: SEL-352 Relay Main Board Jumpers, Connections, and Battery Locations Date Code 20010731 Installation 2-19 SEL-352-1, -2 Instruction Manual...

  • Page 52: Second Alarm Contact Jumper

    SELBoot when power is restored. The front panel will show “SELBoot” and then a warning to remove the jumper when you attempt serial port communication. 2-20 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 53: Eia-232 Serial Port Jumpers

    (date and time) if the external power source is lost or removed. The battery is a 3 V lithium coin cell. At room temperature (25•C) the battery will operate nominally for 10 years at rated load. Date Code 20010731 Installation 2-21 SEL-352-1, -2 Instruction Manual...

  • Page 54: Optional Interface Boards

    To assert an input, apply control voltage to the terminals assigned to that input. Each input is individually isolated, and a terminal pair is brought out for each input. 2-22 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 55: Output Contacts

    Configure the output contacts as “a” contacts or “b” contacts with solder jumpers. Figure 2.19 shows the location of the jumpers and explains the jumper position. Contacts are factory configured as “a” contacts. Date Code 20010731 Installation 2-23 SEL-352-1, -2 Instruction Manual...
  • Page 56 Figure 2.19: Interface Board 1 Component Layout 2-24 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 57: Interface Board 2 (12 Outputs, 8 Inputs)

    Figure 2.23 show the locations of the jumpers and explain the jumper positions. Contacts are factory configured as “a” contacts. Note: The plug-in connector version of this board has only 4 jumper-configurable outputs (see Figure 2.23). Date Code 20010731 Installation 2-25 SEL-352-1, -2 Instruction Manual...
  • Page 58 Figure 2.22: Interface Board 2 Component Layout (Screw-Terminal Block Version) 2-26 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 59 Figure 2.23: Interface Board 2 Component Layout (Plug-In Connector Version) Date Code 20010731 Installation 2-27 SEL-352-1, -2 Instruction Manual...

  • Page 60: Interface Board 4 (4 Outputs, 16 Inputs)

    The rear of the relay will be similar to the following figures: Figure 2.24: Interface Board 4 Output Contacts and Inputs (Board Position 1) Figure 2.25: Interface Board 4 Output Contacts and Inputs (Board Position 2) 2-28 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 61 Configure the output contacts as “a” contacts or “b” contacts with solder jumpers. Figure 2.26 shows the location of the jumpers and explains the jumper position. Contacts are factory configured as “a” contacts. Figure 2.26: Interface Board 4 Component Layout Date Code 20010731 Installation 2-29 SEL-352-1, -2 Instruction Manual...

  • Page 62: Interface Board 5 (8 Outputs, 8 Inputs)

    Two open switches (one on each side of the contact) defeat the charge circuit. 2-30 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 63 Figure 2.27: Interface Board 5 Output Contacts (Board Position 1) Figure 2.28: Interface Board 5 Output Contacts (Board Position 2) Figure 2.29: Possible Connections for Fast High Current Interrupting Output Contacts (Circuit Load Not Shown, Third Terminal Connection is Optional) Date Code 20010731 Installation 2-31 SEL-352-1, -2 Instruction Manual...
  • Page 64 Figure 2.30: Interface Board 5 Component Layout 2-32 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 65: Interface Board 6 (12 Outputs, 8 Inputs)

    Figure 2.34 show the locations of the jumpers and explain the jumper positions. Contacts are factory configured as “a” contacts. Note: The plug-in connector version of this board has only four jumper-configurable outputs (see Figure 2.34.) Date Code 20010731 Installation 2-33 SEL-352-1, -2 Instruction Manual...
  • Page 66 Figure 2.33: Interface Board 6 Component Layout (Screw-Terminal Block Version) 2-34 Installation Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 67 Figure 2.34: Interface Board 6 Component Layout (Plug-In Connector Version) Date Code 20010731 Installation 2-35 SEL-352-1, -2 Instruction Manual...
  • Page 69 52A Pending Failure and Breaker Failure (APpu, AFpu)–Scheme 2......3-23 Setting Calculations......................3-23 Pending Failure and Breaker Failure (LPpu, LDpu) ..........3-23 Thermal Protection of Close and Trip Resistors ................ 3-24 Application Description...................... 3-24 Operating Characteristic..................... 3-24 Date Code 20010731 Breaker Logic SEL-352-1, -2 Instruction Manual...
  • Page 70 Overvoltage (59H/59L) ....................3-36 Flashover Scheme Selection (FOLOG) ..............3-37 Flashover Pending Failure (FPpu) ................3-37 Flashover Failure (FFpu) .................... 3-38 Load Detector (50LD) ....................3-38 Current Unbalance Protection ....................3-38 Application Description...................... 3-38 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 71 Slow Close ........................3-50 Potential Transformers Disagree ................3-50 TABLES Table 3.1: Example Line/Breaker Information ..................3-4 Table 3.2: Breaker Failure Scheme Selection ..................3-5 Table 3.3: Open Conductor Detection Specifications ................. 3-43 Date Code 20010731 Breaker Logic SEL-352-1, -2 Instruction Manual...
  • Page 72 Figure 3.33: Breaker Did Not Close ....................... 3-48 Figure 3.34: Current After MOD Trip ....................3-49 Figure 3.35: MOD Contradicts Current....................3-49 Figure 3.36: Slow Trip..........................3-49 Figure 3.37: Slow Close.......................... 3-50 Figure 3.38: Potential Transformers Disagree..................3-50 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 73: Breaker Logic

    œ Critical loads are lost due to remote fault clearing, which can be maintained using local breaker failure relaying. œ Remote fault clearing is sequential, requiring the local fault contribution to be cleared before remote relaying can detect the fault. Date Code 20010731 Breaker Logic SEL-352-1, -2 Instruction Manual...
  • Page 74 Q…‚‡rp‡v‰rÃSryh’ Hh‘v€ˆ€Ã7…rhxr… $AU Thsr‡’ Pƒr…h‡v‚ Sr€‚‡rÃ7…rhxr…† Pƒr…h‡rÃUv€r 8yrh…vtÃUv€r 9…‚ƒ‚ˆ‡ÃUv€r Hh…tvÃUv€r 8yrh…vtÃUv€r $Ã@yr€r‡Ã6††r…‡† %!ÃUv€r…Ã9ryh’ 7…rhxr… Ahvyˆ…rÃPƒr…h‡v‚ '%Ã6††r…‡† U…h†sr…ÃU…vƒÃ6††r…‡† 6ˆ‘vyvh…’ÃSryh’ Pƒr…h‡vtÃUv€r† Hh’Ã9ryh’ÃT‡h…‡Ã‚sÃ%!ÃUv€r… 6i†‚yˆ‡rÃHh‘v€ˆ€ÃAhˆy‡ 8yrh…vtÃUv€r 9XB)ÃH"$! "$ Figure 3.2: Basic Breaker Failure Scheme Timing Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 75: Available Ac Connections

    Figure 3.4 shows a single-phase connection diagram of all nine ac inputs to the relay. Date Code 20010731 Breaker Logic SEL-352-1, -2 Instruction Manual...

  • Page 76: Example Breaker Specifications

    500 kV, 3000 A, 3800 MVA Maximum trip time: 33 ms Nominal close time: 66 ms 35 W/column, 2 columns Close resistors: 110 W/column, 2 columns Trip resistors: Transfer trip channel time: 0.5 cycle Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 77: Fault Current Conditions

    Special logic has been implemented in these five schemes to improve the speed of these schemes by detecting CT subsidence current. This logic is discussed below. Select scheme timer settings based on the following factors: œ Maximum permissible fault duration œ Protective relay operating time Date Code 20010731 Breaker Logic SEL-352-1, -2 Instruction Manual...

  • Page 78: Subsidence Current Logic

    1 long enough to pick up the timer. Therefore, the internal control bit OPHA (A-phase open) stays at logical 0. In the lower drawing, with OPHA = 0, the “switch” causes the Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 79: Scheme 1 (Fault Current)

    TTdo time. The 62FC timer continues to time until the 62TT timer has expired and the 50FTA overcurrent element drops out. If the 50FTA element picks up and remains asserted until 62FC expires, the FBF bit in the Relay Word asserts. Date Code 20010731 Breaker Logic SEL-352-1, -2 Instruction Manual...
  • Page 80 In both cases, the LFA latch latches the 62FC timer. After the 62FC timer latches, trip signal dropout does not affect the breaker fail protection scheme. Figure 3.6: A-Phase Failure to Trip for Fault Logic, Scheme 1 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 81 Ahˆy‡ÃPppˆ…† Q…‚‡rp‡v‰rÃSryh’ Pƒr…h‡rÃUv€r $AU6 USDQ6UU6 UUq‚ UU69 Hh‘v€ˆ€Ã7…rhxr… ÃPƒr…h‡rÃUv€r GA6S GA6T GA6RA86 7…rhxr…à $AU6 Thsr‡’ Pƒr…h‡rÃUv€r 9…‚ƒ‚ˆ‡ÃUv€r Hh…tvÃUv€r A8ƒˆ A869 6qwhpr‡Ã7…rhxr… Pƒr…h‡vtÃUv€r 9XB)ÃH"$! ""h Figure 3.7: Scheme 1 Breaker Failure Timing Date Code 20010731 Breaker Logic SEL-352-1, -2 Instruction Manual...

  • Page 82: Scheme 2 (Fault Current)

    Consider using Scheme 1, Scheme 4, or Scheme 5 in such breaker arrangements. Figure 3.8: A-Phase Failure to Trip for Fault Logic, Scheme 2 Figure 3.9 depicts the breaker failure condition that results when 62FC times out. 3-10 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 83: Scheme 3 (Fault Current)

    In Scheme 3, the trip input must remain asserted while current flows in the protected breaker. Scheme 3 resets when either the TRIPA input deasserts or the 50FTA element drops out. Figure 3.10: A-Phase Failure to Trip for Fault Logic, Scheme 3 Date Code 20010731 Breaker Logic 3-11 SEL-352-1, -2 Instruction Manual...

  • Page 84: Scheme 4 (Fault Current)

    The Scheme 4 logic, shown in Figure 3.12, protects the system from a breaker failure during a fault. This scheme is applicable to single breaker, ring-bus, and breaker-and-a-half bus configurations. Figure 3.12: A-Phase Failure to Trip for Fault Logic, Scheme 4 3-12 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 85: Scheme 5 (Fault Current)

    Relay Word FBF bit asserts. If the TRIPA input is deasserted or the 50FTA element drops out before 62FC expires, the logic resets and FBF does not assert. Date Code 20010731 Breaker Logic 3-13 SEL-352-1, -2 Instruction Manual...
  • Page 86 Thsr‡’ Pƒr…h‡rÃUv€r 9…‚ƒ‚ˆ‡ÃUv€r Hh…tvÃUv€r A869 7…rhxr…Ã!ÃAhvy† Ahˆy‡ÃPppˆ…† $AU6 Q…‚‡rp‡v‰rÃSryh’ Pƒr…h‡rÃUv€r USDQ6A86 A8ƒˆ 7…rhxr…à $AU6 Thsr‡’ Pƒr…h‡rÃUv€r 9…‚ƒ‚ˆ‡ÃUv€r Hh…tvÃUv€r A869 6qwhpr‡Ã7…rhxr… Pƒr…h‡vtÃUv€r 9XB)ÃH"$! "#h Figure 3.15: Scheme 5 Breaker Failure Timing 3-14 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 87: Setting Description

    Set 50RMS to the value at which the element should pick up. See Figure 3.16. This feature is only available in the SEL-352-2 Relay. Date Code 20010731 Breaker Logic 3-15 SEL-352-1, -2 Instruction Manual...

  • Page 88: Fault Current Logic Enable (Ftlog)

    Use SET <ENTER> to access this setting. It determines the time delay before the 62TT timer expires and asserts the TTAD timer output. The recommended setting for TTpu is the nominal breaker operate time, plus the 50FT dropout time, plus a safety margin. 3-16 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 89: Trip Timer Dropout Time (Ttdo)-Scheme 1

    By calculating the worst-case measurement error and subtracting that value from the relay setting, you ensure that the element operates for the current level your protection scheme specifies. Date Code 20010731 Breaker Logic 3-17 SEL-352-1, -2 Instruction Manual...

  • Page 90: Fault Logic Enable (Ftlog)

    Note that auxiliary relay operate times are not separated from breaker operate times. If the high current interrupting output contacts are used to trip breakers directly, then you do not need to consider auxiliary relay operate times. 3-18 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 91: Load Or Line-Charging Current Conditions

    This feature provides the necessary security against incidental trip input assertions. Figure 3.17: A-Phase Failure to Trip Load or Line-Charging Current Logic, Scheme 1 Date Code 20010731 Breaker Logic 3-19 SEL-352-1, -2 Instruction Manual...

  • Page 92: Scheme 2 (Load Current With 52A Backup)

    A-phase trip initiate from another relay, set TRIPA = IN101. If IN104 is used to indicate breaker status, set 52AA = IN104. Repeat this for each programmable input. The 3-20 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 93: Breaker Status (52Aa, 52Ab, 52Ac)

    Failure-to-trip load current logic may still be used to protect the breaker. Because current application may be sequential, scheme timing is uncertain in ring-bus or breaker-and-a-half installations. Date Code 20010731 Breaker Logic 3-21 SEL-352-1, -2 Instruction Manual...

  • Page 94: Ground Current Detector (50N)

    The safety margin will be longer in this case than for the fault current logic because the total acceptable time to clear the fault at these lower fault duties is longer. 3-22 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 95: Pending Failure And Breaker Failure (Appu, Afpu)-Scheme 2

    Tbl + T50 + Ts = 5.5 cycles We set the pending failure timer LPpu to retrip the protected breaker more than two cycles before tripping the lockout relay: LPpu = 3.25 cycles Date Code 20010731 Breaker Logic 3-23 SEL-352-1, -2 Instruction Manual...

  • Page 96: Thermal Protection Of Close And Trip Resistors

    The logic uses one input, DVA, calculated from other relay logic. The input DVA is the voltage difference across the breaker after steady-state voltage differences have been removed. See Figure 3.20 for the voltage nulling logic diagram. Figure 3.19: Trip and Close Resistor Thermal Protection Logic 3-24 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 97: Voltage Nulling

    Use any combination of Relay Word bits according to the SEL control equation criteria in OGIC Section 5: Control Logic. Breaker Status (52AA, 52AB, 52AC) Access the three programmable breaker status inputs (52AA, 52AB, 52AC) with SET G <ENTER>. Date Code 20010731 Breaker Logic 3-25 SEL-352-1, -2 Instruction Manual...

  • Page 98: Phase Overpower (37Op)

    œ Breaker is closed for the particular phase œ No trip input is received for the particular phase œ No close input is received œ Both X- and Y-side voltages are live for the particular phase 3-26 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 99: Maximum Magnitude Nulling (Kmag)

    THLOG = CUSTOM. When CUSTOM is selected, all thermal settings control equations. Modify these settings to meet your specific are shown including the SEL OGIC application needs. Date Code 20010731 Breaker Logic 3-27 SEL-352-1, -2 Instruction Manual...

  • Page 100: Overpower Pickup (Oppu)

    0.002–200.000 J in 0.001-J steps (1 A) Use SET <ENTER> to access the 26TF setting and establish the threshold at which the relay asserts an alarm for trip resistor thermal failure. 3-28 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 101: Cooling Time Constants (Crtc, Trtc)

    When the model is cooling, the energy is decaying exponentially based on the following equation: ¼ Energy Energy where: Energy(t ) is the initial energy = Seconds RTC = Resistor time constant setting (CRTC, TRTC) Date Code 20010731 Breaker Logic 3-29 SEL-352-1, -2 Instruction Manual...

  • Page 102: Phase Overpower (37Op)

    Thermal Model Voltage Threshold (87TH) Initially, set 87TH so the element asserts when the minimum line current is flowing through the minimum breaker resistance possible while resistors are in circuit. 3-30 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 103: Overpower Pickup (Oppu)

    = 4.41 MJ primary per breaker pole SULPDU\ = 1.71 J secondary &75 ¼ Thermal failure settings should prevent a normal close operation from adding enough energy to damage resistors after thermal failure elements assert. Date Code 20010731 Breaker Logic 3-31 SEL-352-1, -2 Instruction Manual...

  • Page 104: Close Pending Failure (26Cp)

    If not, you can calculate the constants as follows. Assume that cooling from 200•C to near ambient temperature takes four hours, or three time constants (95 percent cooled). This implies a cooling time constant equal to the value determined by the following equation: 3-32 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 105: Flashover Conditions

    If PTs are only available on one side of the circuit breaker, the second scheme may be used to detect breaker flashover. Date Code 20010731 Breaker Logic 3-33 SEL-352-1, -2 Instruction Manual...

  • Page 106: Scheme 2 (Flashover, Three Potential Transformers)

    Scheme 2 uses the voltage on one side of the circuit breaker and the current through the breaker to detect flashover. This logic also needs the breaker monitor input. Figure 3.22: Flashover Condition Logic, Scheme 2–Three PTs 3-34 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 107: Setting Description

    Use SET <ENTER> to access the 87H setting. Use this setting, in Scheme 1 only, to indicate that a difference voltage exists across the breaker prior to current flowing in the breaker. In order for flashover to occur, a difference voltage must exist across the breaker. Date Code 20010731 Breaker Logic 3-35 SEL-352-1, -2 Instruction Manual...

  • Page 108: Flashover Differential (87Fo)

    Set 59H to indicate an overvoltage condition. A recommended setting is 59H = 100 V for a nominal 67V system. 3-36 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 109: Flashover Scheme Selection (Folog)

    TRIPA, TRIPB, or TRIPC inputs, or the flashover logic is defeated. The recommended setting for FPpu is the FFpu time minus the nominal breaker operate time and some margin, FPpu = 25 cycles. Date Code 20010731 Breaker Logic 3-37 SEL-352-1, -2 Instruction Manual...

  • Page 110: Flashover Failure (Ffpu)

    Operating Characteristic Figure 3.23 shows the logic that detects unbalanced current conditions, which indicate that one or two breaker poles failed to close. 3-38 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 111: Setting Description

    The programmable input settings are actually SEL control equations. Use any combination OGIC of Relay Word bits according to the SEL control equation criteria in Section 5: Control OGIC Logic. Date Code 20010731 Breaker Logic 3-39 SEL-352-1, -2 Instruction Manual...

  • Page 112: Phase Current Unbalance Ratio (46Ub)

    UBBF bit. The recommended setting for UPpu is the UFpu time minus the nominal breaker trip time and some margin. 3-40 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 113: Unbalance Breaker Failure (Ufpu)

    For the example protected breaker, 46UB = 16. Application Guideline You can use the current unbalance logic to detect open conductors. The sensitivity of the detection depends on load conditions and the location of the open conductor. Date Code 20010731 Breaker Logic 3-41 SEL-352-1, -2 Instruction Manual...
  • Page 114 (C-phase open conductor detection) UFA = LUQ*46A Default UFB = LUQ*46B Default UFC = LUQ*46C Default UBPF = UPAD + UPBD + UPCD Default UBBF = UFAD + UFBD + UFCD Default 3-42 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 115: Loss-Of-Dielectric Detection

    Section 4: Close Logic provides the logic diagram for this logic. Refer to Figure 3.25 for a timing diagram of the loss-of-dielectric detection logic. Figure 3.25: Loss-of-Dielectric Detection Timing Date Code 20010731 Breaker Logic 3-43 SEL-352-1, -2 Instruction Manual...

  • Page 116: Setting Description

    After 60 cycles of this low pressure condition, a pending failure is declared (LODPF). Loss-of-Dielectric Logic Enable (DELOG) Range: OFF, ON, CUSTOM Use SET <ENTER> to access the DELOG setting. Enable, modify, or disable loss-of-dielectric logic. 3-44 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 117: Leak Timer (L2Pu)

    The BALRM (Breaker Alarm) setting defines which breaker monitoring conditions assert the BALRM bit. Operating Characteristic When the BALRM bit asserts, the relay records the alarm in the breaker alarm report and the bit remains asserted for one second. Date Code 20010731 Breaker Logic 3-45 SEL-352-1, -2 Instruction Manual...

  • Page 118: Failed Cb Trip Resistors Put In Service

    Failed CB Trip Resistors Put in Service The FTRS bit asserts if any trip resistor thermal failure bit asserts and 86RS bit or close input assertion occurs. Figure 3.28: Failed CB Trip Resistors Put in Service 3-46 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 119: Failed Cb Close Resistors Put In Service

    The 52ACV bit asserts if the 87TH overvoltage bit picks up when a 52A bit asserts as long as a trip or close operation has not occurred for five cycles. Figure 3.30: 52A Contradicts Voltage Date Code 20010731 Breaker Logic 3-47 SEL-352-1, -2 Instruction Manual...

  • Page 120: Current While Open

    BDNC asserts if the 52A status still indicates an open breaker three seconds after the close output element (CCA) asserts. When the breaker status finally indicates a closed breaker, the three-second timer resets. Figure 3.33: Breaker Did Not Close 3-48 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 121: Current After Mod Trip

    ST asserts if the A-, B-, or C-phase 50MN element is still picked up when SlowTr time expires following the A-, B-, or C-phase trip input assertion, respectively. The SlowTr timer resets when 50MNA drops out. Figure 3.36: Slow Trip Date Code 20010731 Breaker Logic 3-49 SEL-352-1, -2 Instruction Manual...

  • Page 122: Slow Close

    The PTD bit asserts if the voltage nulling constant K (see Voltage Nulling) exceeds the Kmag or Kang setting. Figure 3.38: Potential Transformers Disagree To disable any of the above breaker monitors, remove the element from the BALRM setting list. 3-50 Breaker Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 123 Retrip Timer Pickup (RTpu)..................4-16 Lockout Relay Control ....................... 4-17 Application Description...................... 4-17 Example 1 ........................4-17 Example 2 ........................4-17 Operating Characteristic..................... 4-17 Scheme 1 (No MOD Trip) ..................4-18 Date Code 20010731 Close Logic SEL-352-1, -2 Instruction Manual...
  • Page 124 Figure 4.13: Lockout Relay Control Scheme 1 Timing Diagram ............4-18 Figure 4.14: Lockout Relay Control and MOD Trip Logic (Scheme 2) ..........4-19 Figure 4.15: Lockout Relay Control Scheme 2 Timing Diagram ............4-20 Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 125: Close Logic

    Set the pickup time for each phase timer, selecting the delay for each individual phase. Figure 4.1 illustrates this logic for A-phase. B-phase logic and C-phase logic are similar. Date Code 20010731 Close Logic SEL-352-1, -2 Instruction Manual...

  • Page 126: Scheme 2 (Synchronism Checking, Point-On-Wave)

    An OR gate combines the synchronized and point-on-wave closing logic. Both sets of logic are necessary to fully address closing for all system conditions: live line and dead bus, dead line and live bus, live line and live bus, dead line and dead bus. Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 127: Synchronism Checking

    A second method is to set CLSLOG=CUSTOM, ZCNA = ZCNB = ZCNC = ZCPA = ZCPB = ZCPC = PCNA = PCNB = PCNC = PCPA = PCPB = PCPC = 0, and only change the settings normally associated with Scheme 2. Date Code 20010731 Close Logic SEL-352-1, -2 Instruction Manual...

  • Page 128: Point-On-Wave

    Trapped Charge Detection The logic shown in Figure 4.6 monitors the voltage input channels for A-phase. B-phase logic and C-phase logic are similar. Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 129 If a breaker has an expected variation of –2 ms, and it operates at the edge of its error band, the breaker will close at 0.7 pu instead of at zero. The voltage difference across the breaker will Date Code 20010731 Close Logic SEL-352-1, -2 Instruction Manual...
  • Page 130 Figure 4.7: Voltage Zero-Crossing Detection Logic, X-Side Controlled Close Logic The outputs from this logic initiate the controlled closing timers. This logic combines the outputs of the X- and Y-side trapped charge logic with CLOSE and MCLOSE. Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 131 OUT301, OUT302, and OUT303, respectively. The pickup times of timers in this figure are accurate to ±200 microseconds. Each phase has independent timer settings to enable the user to stagger the closing time of each phase. Date Code 20010731 Close Logic SEL-352-1, -2 Instruction Manual...

  • Page 132: Setting Description

    Use the SET <ENTER> command to program the 59L setting and the settings described below. Set 59L for the X- and Y-side voltage to indicate energized equipment. The recommended setting is 57 V for a nominal 67 V application. Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 133: Dead Line/Bus Under Voltage (27D)

    Refer to Section 2: Installation. When the high current interrupting contacts are not available, apply an SEL-9501 across a standard output contact to give the contact greater interrupt capability. Contact the factory for more information about the SEL-9501 Contact Arc Suppressor. Date Code 20010731 Close Logic SEL-352-1, -2 Instruction Manual...

  • Page 134: Staggered Close Timer Pickups (Rcapu, Rcbpu, Rccpu)-Scheme 1

    If the two systems are slipping by at a consistent rate, the SEL-352 Relay will initiate the close so that the breaker 4-10 Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 135: Maximum Slip Frequency For Manual Close (25Sm)-Scheme 2

    Synchronizing Phase (SYNCP)–Scheme 2 Range: A, B, C This setting determines whether the synchronism check logic uses Vx, Vy voltages and X59H, X59L, and Y59L elements from A-phase, B-phase, or C-phase. Date Code 20010731 Close Logic 4-11 SEL-352-1, -2 Instruction Manual...

  • Page 136: Synchronism Timer Dropout (Syncdo)-Scheme 2

    Set CLSA, B, and C to the output contact that will provide the point-on-wave closing. It is recommended that three of the fast, high current interrupting output contacts be used for point- 4-12 Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 137: Setting Calculation

    +1.5/–2.5 ms. This error band should be centered around the point of closing. It needs to shift 0.5 ms in the positive direction. Set PCApu = [1 – fractional part of (38.9/16.67)] • 16.67 + 0.5 = 11.61 ms. Figure 4.10: Point-On-Wave Timer Calculation Date Code 20010731 Close Logic 4-13 SEL-352-1, -2 Instruction Manual...

  • Page 138: Zero-Crossing Timers Pickup (Zcapu, Zcbpu, Zccpu)-Scheme 2

    This will result in A-phase closing 4-14 Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 139: Retripping

    Relay Word elements RTA, RTB, and RTC simply follow the input assignments TRIPA, TRIPB, and TRIPC, respectively. Scheme 2 (Delayed Retrip) Figure 4.11: Circuit Breaker Retrip Logic (Scheme 2), A-Phase Date Code 20010731 Close Logic 4-15 SEL-352-1, -2 Instruction Manual...

  • Page 140: Setting Description

    The RTpu timer setting defines the time interval between receipt of the trip initiation and assertion of the retrip bits RTA, RTB, and RTC. Consider the nominal breaker trip time, the retrip circuit, and the FCpu setting (timer for breaker failure during fault conditions). 4-16 Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 141: Lockout Relay Control

    (MOD). The SEL-352 Relay trips the MOD when current drops below a settable threshold. This scheme also can be used to indicate “Safe to Disconnect” conditions for manual disconnect switches. Date Code 20010731 Close Logic 4-17 SEL-352-1, -2 Instruction Manual...

  • Page 142: Scheme 1 (No Mod Trip)

    If a thermal failure of a trip or close resistor (CTF, TTF) exists, the 86RS output will not assert. Figure 4.12: 86BF TRIP and Reset Logic (Scheme 1) Figure 4.13: Lockout Relay Control Scheme 1 Timing Diagram 4-18 Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 143: Scheme 2 (Mod Trip Used)

    “safe to reset” indication. One second after the 86RS asserts, the M1 timer deasserts the 86RS output and the MDT output. Figure 4.14: Lockout Relay Control and MOD Trip Logic (Scheme 2) Date Code 20010731 Close Logic 4-19 SEL-352-1, -2 Instruction Manual...

  • Page 144: Setting Description

    œ Decide which schemes should drive the lockout relay. œ Verify the output Relay Word bit for each scheme (See Section 5: Control Logic). 4-20 Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 145: Mod Operating Current (50Md)

    A breaker alarm called “Current After MOD Trip” uses the M3 output, current, and the MOD status indication (MODST) to alarm for slow MODs. Refer to the logic diagrams and timing diagrams in Section 5: Control Logic. Date Code 20010731 Close Logic 4-21 SEL-352-1, -2 Instruction Manual...

  • Page 146: Output Contact

    86BFT bit (OUT101 = 86BFT). Note that all outputs will return to their de-energized state (SEL control equation = 0) for OGIC approximately 1 second when settings are saved. 4-22 Close Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 147 86BFT Target LED......................5-20 86RS Target LED ....................... 5-20 TRIP Target LED ....................... 5-21 CLOSE Target LED ......................5-21 52A Target LED ......................... 5-22 A, B, and C Target LEDs....................5-22 Date Code 20010731 Control Logic SEL-352-1, -2 Instruction Manual...
  • Page 148 Figure 5.16: FAULT Target LED Logic....................5-23 Figure 5.17: LOAD Target LED Logic ....................5-23 Figure 5.18: UBAL Target LED Logic....................5-24 Figure 5.19: FLASH Target LED Logic....................5-24 Figure 5.20: THERM Target LED Logic ....................5-24 Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 149: Control Logic

    These four parts for overview purposes are the Input Assignments, Scheme Logic, Trip and Close Logic, and Output Assignments. Refer to Figure 5.1 for a block diagram of this overview. The Analog Measurements are part of the Scheme Logic. Date Code 20010731 Control Logic SEL-352-1, -2 Instruction Manual...

  • Page 150: Relay Word Bits And Sel Ogic ® Control Equations

    All Relay Word bits are shown in Table 5.1. The asterisk (*) in the Relay Word is a placeholder for unused Relay Word bits. The Relay Word bits are arranged alphabetically in Appendix F: Relay Word with descriptions and Relay Word row locations. Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 151 LFCR LFCS LFBQ LFBR LFBS LFAQ FCCD FCBD FCAD Load Current Protection Elements LLCR LLCS LLBQ LLBR LLBS LLAQ LLAR LLAS LPCD LPBD LPAD LLCQ L52Q L52R L52S LDCD LDBD LDAD Date Code 20010731 Control Logic SEL-352-1, -2 Instruction Manual...
  • Page 152 T3BD T3AD L5CQ L5CR L6CR L6CS L6BQ L6BR L6BS L6AQ L6AR L6AS L7CS L7BQ L7BR L7BS L7AQ L7AR L7AS L6CQ L7CQ L7CR Logic Output Elements UBBF UBPF FOBF FOPF LODBF LODPF Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 153: Control Equations

    The rising- and falling-edge detect operators cannot be used with Analog Compares, and each counts as two operators toward the maximum number of 550 (Group Setting Class) or 50 (Global Setting Class). Date Code 20010731 Control Logic SEL-352-1, -2 Instruction Manual...

  • Page 154: Sel Ogic Control Equation Analog Compares

    (secondary) (secondary) magnitudes Sequence current 0.1–45 A 0.02–9 A magnitudes (secondary) (secondary) VXMAX, VXMIN, Phase voltage 1–120 V 1–120 V VYMAX, VYMIN, VAX, magnitudes (secondary) (secondary) VBX, VCX, VAY, VBY, Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 155: Limitations Of Sel Ogic Control Equations

    Group settings are limited to no more than 550 OGIC elements. In the Global settings, they are limited to no more than 50 elements. Table 5.4 summarizes this information. Date Code 20010731 Control Logic SEL-352-1, -2 Instruction Manual...

  • Page 156: Sel Ogic Control Equation Operators Example

    SAC = IN301 + IN302 + . . . + IN316 MER = SAA + SAB + SAC Control Equation Operators Example OGIC Objective: Use parentheses to simplify SEL control equations. OGIC Solution: Put “OR” conditions inside parentheses. Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 157: Processing Order And Processing Interval

    Control Equation SET A Elements (Rows 24–26) 1/8 cycle OGIC Fault Current Protection Elements (Rows 27–29) 1/8 cycle Load Current Protection Elements (Rows 30–33) 1/4 cycle Resistor Thermal Protection Elements (Rows 34–38) 1/4 cycle Date Code 20010731 Control Logic SEL-352-1, -2 Instruction Manual...

  • Page 158: Fixed Analog Comparisons

    Contact Output Elements and Display Points (Rows 73–79) 1/8 cycle Sequential Event Recorder Triggers (SER1–SER3) (not in Relay Word) 1/8 cycle IXED NALOG OMPARISONS Figure 5.3: Analog Comparison Logic Examples 5-10 Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 159: Optoisolated Inputs

    Relay Word bits IN101 and IN102 are used in SEL control equations such as OGIC in the input assignment variables. The optoisolated input elements are processed every 1/8 cycle. Figure 5.4: Example Operation of Optoisolated Inputs IN101 and IN102 Date Code 20010731 Control Logic 5-11 SEL-352-1, -2 Instruction Manual...

  • Page 160: Input Assignment Variables

    LOD1 and LOD2 typically are connected to pressure switches used to measure the dielectric gas pressure of the circuit breakers. LODCT typically is connected to a switch monitoring the dielectric pressure of the CTs. 5-12 Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 161: Multiple Setting Groups (Ss1, Ss2)

    “Press CNTRL for Local Control,” to alert the user that local control capabilities have been programmed. A more complete description of the switches and associated settings is located in Section 9: Front-Panel Interface. Date Code 20010731 Control Logic 5-13 SEL-352-1, -2 Instruction Manual...

  • Page 162: Remote Control Switches (Rb1-Rb16)

    Also, remote bits can be used in operating latches within SEL control equations. OGIC Pulse (momentarily operate) the remote bits for this application. Latches are discussed later in this section. 5-14 Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 163: Remote Bit States Not Retained When Power Is Lost

    A-phase is shown in Figure 5.6, and B-phase and C-phase are similar. Figure 5.6: 62T1A Timer Logic T1A must assert for T1Apu cycles before T1AD will assert, and T1A must deassert for T1Ado cycles before T1AD will deassert. Date Code 20010731 Control Logic 5-15 SEL-352-1, -2 Instruction Manual...

  • Page 164: Latch Control Switches

    Six timers with a pickup and dropout time provide control for two sets of three independent phase elements. A-phase is shown in Figure 5.6 for 62T1A of SEL control equation Set A. OGIC control equation Set B timers are similar. OGIC 5-16 Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 165: Latch Control Switches

    LCD. OGIC Unlike other relays in the SEL-300 series, the results of these control equations are available as Relay Word bits (DP1 through DP16) in the SEL-352 Relay. Date Code 20010731 Control Logic 5-17 SEL-352-1, -2 Instruction Manual...

  • Page 166: Led Targeting Logic

    The enable (EN) target LED is illuminated for all normal operating conditions. Any condition that temporarily or permanently disables the relay protection and control capabilities extinguishes the EN target LED. 5-18 Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 167: Pf Target Led

    Target Reset button is pushed or the TAR R command is issued to one of the serial ports. Figure 5.9 shows the PF target LED logic. Figure 5.9: PF Target LED Logic Date Code 20010731 Control Logic 5-19 SEL-352-1, -2 Instruction Manual...

  • Page 168: 86Bft Target Led

    Target Reset button is pushed or the TAR R command is issued to one of the serial ports. Figure 5.11 shows the 86RS target LED logic. Figure 5.11: 86RS Target LED Logic 5-20 Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 169: Trip Target Led

    If both a trip and close condition exist at the same time, the CLOSE target LED illuminates and the TRIP target LED extinguishes because of the processing order. For simplicity, this is not represented in the logic diagram. Date Code 20010731 Control Logic 5-21 SEL-352-1, -2 Instruction Manual...

  • Page 170: 52A Target Led

    TAR R command is issued to one of the serial ports. MOD Target LED The relay illuminates the MOD target LED when the motor-operated disconnect status element (MODST) is asserted. 5-22 Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 171 Target Reset button is pushed or the TAR R command is issued to one of the serial ports. Figure 5.18 shows the UBAL target LED logic. Date Code 20010731 Control Logic 5-23 SEL-352-1, -2 Instruction Manual...
  • Page 172 Target Reset button is pushed or the TAR R command is issued to one of the serial ports. Figure 5.20 shows the THERM target LED logic. Figure 5.20: THERM Target LED Logic 5-24 Control Logic Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 173 Temperature.......................... 6-9 RAM ............................. 6-9 Flash ROM ........................... 6-9 Analog-to-Digital Converter ....................6-9 Critical RAM ........................6-10 EEPROM ..........................6-10 I/O Boards........................... 6-10 Self-Testing Alarms......................6-11 Warnings........................6-11 Failures ........................6-11 Date Code 20010731 Metering and Monitoring SEL-352-1, -2 Instruction Manual...
  • Page 174 TABLES Table 6.1: and K Constants for the Three Regions in Figure 6.1 ............6-7 Table 6.2: Self-Test Summary......................6-11 FIGURES Figure 6.1: Breaker Maintenance Curve....................6-6 Metering and Monitoring Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 175: Metering And Monitoring

    VYAB = Magnitude of [(VYA analog input) – (VYB analog input)] • (YPTR) / 1000 dVA = Magnitude of [(VXA analog input) • (XPTR) – (VYA analog input) • (YPTR)] / 1000 Date Code 20010731 Metering and Monitoring SEL-352-1, -2 Instruction Manual...

  • Page 176: Breaker Monitor

    The breaker alarms report summarizes any occurrence of abnormal breaker conditions. An example breaker report follows: Metering and Monitoring Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 177: Header

    The relay stores the latest 512 breaker operations in nonvolatile memory on a per-pole basis. The relay reports electrical and mechanical operate times, the energy dissipated, and the maximum current for the trip or close operation of each pole. Date Code 20010731 Metering and Monitoring SEL-352-1, -2 Instruction Manual...

  • Page 178: Date And Time

    Current Current measurement occurs during each trip and close operation on a per-pole basis. The current is the maximum filtered current through the breaker during the electrical operating time. Metering and Monitoring Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 179: Operation Summary

    SlowCl or SlowTr settings (designated by a + symbol) are not included in the current accumulation. Percent Wear (SEL-352-2 Relay) The breaker contact wear (percent wear) function is only available in the SEL-352-2 Relay. Date Code 20010731 Metering and Monitoring SEL-352-1, -2 Instruction Manual...
  • Page 180 100 percent (1/400) = 0.25 percent wear to the breaker, an accumulated wear of 0.266 percent. The relay uses the following equation to calculate the contact wear as described above: BCWPp BCWPp ¼ Metering and Monitoring Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 181: Breaker Alarms

    The total count resets any time the BRE C, SET, SET R, or SET G command executes or the relay loses power. Date Code 20010731 Metering and Monitoring SEL-352-1, -2 Instruction Manual...

  • Page 182: Clearing The Breaker Monitor Report

    Identification of warnings and failures is as follows: All warnings, represented by a W in the status report, generate an automatic serial port message and pulse the ALARM output contact for five seconds. Metering and Monitoring Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 183: Channel Offset

    The relay checks the A/D conversion time to verify A/D converter function. The test fails if conversion time is excessive or a conversion starts and never finishes. There is no warning state for this test. Date Code 20010731 Metering and Monitoring SEL-352-1, -2 Instruction Manual...

  • Page 184: Critical Ram

    Time: 14:09:49.628 FID=SEL-352-1-R100-V-D961030 SELF TESTS W=Warn F=Fail +5V_PS +5V_REG -5V_REG +12V_PS -12V_PS +15V_PS -15V_PS 4.92 5.01 -5.00 12.09 -12.21 14.92 -14.92 TEMP CR_RAM EEPROM IO_BRD 32.7 Relay Enabled =>> 6-10 Metering and Monitoring Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 185: Self-Testing Alarms

    œ Represented by an “F” in the status report œ Generate an automatic serial-port message œ Displays a front-panel message œ Closes and latches the ALARM output contact œ Disables relay, freezes in current state Date Code 20010731 Metering and Monitoring 6-11 SEL-352-1, -2 Instruction Manual...
  • Page 187 Retripping Scheme 1 ......................7-25 Retripping Scheme 2 ......................7-26 Lockout Relay Control Scheme 1 (No MOD Trip)............7-26 Lockout Relay Control Scheme 2 (MOD Tripping)............7-27 Settings Sheets..........................7-27 Date Code 20010731 Setting the Relay SEL-352-1, -2 Instruction Manual...
  • Page 188 Table 7.5: SET G (Global) Command Settings................... 7-11 Table 7.6: SET P (Port) Command Settings..................7-14 Table 7.7: SET T Command Settings....................7-14 Table 7.8: SET Command Categories ....................7-27 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 189: Setting The Relay

    Level 2 (screen prompt: =>>). To change a specific setting, enter the command: SET n m s TERSE where = L, G, R, T, or P (parameter n is not entered for the Relay settings). Date Code 20010731 Setting the Relay SEL-352-1, -2 Instruction Manual...
  • Page 190 (see Table 7.1), the relay is not disabled while it saves the new settings. The ALARM contact closes momentarily (for a “b” contact, opens for an “a”) but the EN LED remains on while the new settings are saved. Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 191: Additional Relay Settings

    SlowTr setting. After the TRIPA Relay Word bit asserts, the SlowTr timer starts timing. If the current does not drop out based on the fixed threshold 50MNA Date Code 20010731 Setting the Relay SEL-352-1, -2 Instruction Manual...

  • Page 192: Slow Close Alarm (Slowcl)

    The setting is entered as a ratio to 1. For example, if the potential transformers that are connected to the Y side of the SEL-352 Relay are connected on a tap of 4300:1, set the YPTR to 4300. Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 193: Mask For Event Reporting (Mer)

    Table 7.4, Table 7.5, Table 7.6, and Table 7.7 list only the settings that appear if the scheme logic is used (not CUSTOM). The table gives a brief description of the use of the setting, the Date Code 20010731 Setting the Relay SEL-352-1, -2 Instruction Manual...
  • Page 194 1 XPTR X-Side Potential Transformer Ratio based on tap 1–10000 connection ratio steps of 1 YPTR Y-Side Potential Transformer Ratio based on tap 1–10000 connection ratio steps of 1 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 195 Thermal Protection Logic Settings (See Section 3: Breaker Logic) 37OP Phase Overpower Element for enabling the 0.1–3400.0 W sec (5 A I thermal model 0.02–680.0 W sec (1 A I 0.01-W steps Date Code 20010731 Setting the Relay SEL-352-1, -2 Instruction Manual...
  • Page 196 Flashover Phase Voltage is not used by the flash- 1.0–130.0 V sec over logic (See 59L under Controlled Closing) 0.1-V steps FOLOG Flashover Protection Logic scheme selection OFF, 1, 2, CUSTOM Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 197 62RCB Timer Pickup Time defines the B-phase 0–16383 cyc staggered close time (Scheme 1) 0.25-cyc steps RCCpu 62RCC Timer Pickup Time defines the C-phase 0–16383 cyc staggered close time (Scheme 1) 0.25-cyc steps Date Code 20010731 Setting the Relay SEL-352-1, -2 Instruction Manual...
  • Page 198 Retrip Logic Settings (See Section 5: Control Logic) RTPLOG Circuit Breaker Retrip Logic scheme selection OFF, 1, 2, CUSTOM RTpu 62RT Timer Pickup Time for delaying a retrip 0–16383 cyc 0.25-cyc steps 7-10 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 199: Ogic

    A-, B-, C-Phase and Three-Pole Trip (See Section 5: Control Logic) TRIPA Programmable input that defines an A-phase trip control equation OGIC initiation receive TRIPB Programmable input that defines a B-phase trip control equation OGIC initiation receive Date Code 20010731 Setting the Relay 7-11 SEL-352-1, -2 Instruction Manual...
  • Page 200 Programmable input that defines dielectric control equation OGIC pressure level 2 for the breaker LODCT Programmable input that defines dielectric control equation OGIC pressure level for the current transformer 7-12 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 201 Interrupt Set Point 1 0.1–999.0 kA in 0.1-kA steps KASP2 kA Interrupt Set Point 2 0.1–999.0 kA in 0.1-kA steps KASP3 kA Interrupt Set Point 3 0.1–999.0 kA in 0.1-kA steps Date Code 20010731 Setting the Relay 7-13 SEL-352-1, -2 Instruction Manual...
  • Page 202 1 A relay, divide the following settings by 5: 50FT, 50LD, 50N, 37OP, 26CP, 26CF, 26TP, 26TF, 50MD. If an R_S command is issued, the default settings will be the new active settings. 7-14 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 203 CLOSE + MCLOSE + 26CPA + 26CPB + 26CPC + 26TPA + 26TPB + 26TPC + MDT OUT101 =86BFT OUT102 =86BFT OUT103 =BALRM OUT104 =!50MNA*!50MNB*!50MNC*!52AA*!52AB*!52AC OUT105 =MDT OUT106 =LPF + FOPF + UBPF OUT107 =86RS =IN104 (continued on next page) Date Code 20010731 Setting the Relay 7-15 SEL-352-1, -2 Instruction Manual...
  • Page 204 ALIAS11=NA ALIAS12=NA ALIAS13=NA ALIAS14=NA ALIAS15=NA ALIAS16=NA ALIAS17=NA ALIAS18=NA ALIAS19=NA ALIAS20=NA BALRM =FTRS FCRS 52ACV CWO TWO BDNC CAMT MCC ST SC PTD LABEL =Example Report Label SER1 SER2 SER3 7-16 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 205 DP1_1 =BREAKER CLOSED DP1_0 =BREAKER OPEN DP2_1 = DP2_0 = DP3_1 = DP3_0 = DP4_1 = DP4_0 = DP5_1 = DP5_0 = DP6_1 = DP6_0 = (continued on next page) Date Code 20010731 Setting the Relay 7-17 SEL-352-1, -2 Instruction Manual...

  • Page 206: Fault Current Protection Scheme 1

    =TRIPA =TRIPB =TRIPC LFAS =TRIPA*(TTAD + 50FTA) LFAR =!50FTA*!TTAD LFBS =TRIPB*(TTBD + 50FTB) LFBR =!50FTB*!TTBD LFCS =TRIPC*(TTCD + 50FTC) LFCR =!50FTC*!TTCD =LFAQ =LFBQ =LFCQ =FCAD + FCBD + FCCD 7-18 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 207: Fault Current Protection Scheme 2

    The default SEL control equation settings for the fault current protection logic Scheme 3 OGIC follow: LFAS LFAR LFBS LFBR LFCS LFCR =50FTA*TRIPA =50FTB*TRIPB =50FTC*TRIPC =FCAD + FCBD + FCCD Date Code 20010731 Setting the Relay 7-19 SEL-352-1, -2 Instruction Manual...

  • Page 208: Fault Current Protection Scheme 4

    The default SEL control equation settings for the fault current protection logic Scheme 5 OGIC follow: LFAS LFAR LFBS LFBR LFCS LFCR =TRIPA =TRIPB =TRIPC =50FTA*FCAD + 50FTB*FCBD + 50FTC*FCCD 7-20 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 209: Load Current Protection Scheme 1

    =!50LDC =LLAQ =LLBQ =LLCQ =LLAQ =LLBQ =LLCQ L52S =/TRIP3 L52R =!52AA*!52AB*!52AC + 86BFT =L52Q =L52Q =LPAD + LPBD + LPCD + APD =LDAD + LDBD + LDCD + AFD Date Code 20010731 Setting the Relay 7-21 SEL-352-1, -2 Instruction Manual...

  • Page 210: Thermal Protection Of Trip And Close Resistors

    =F1AD*!87HA*!F2AD*50LDA*!87FOA*!F3AD LVAR =!(50LDA*!F3AD*!87FOA) LVBS =F1BD*!87HB*!F2BD*50LDB*!87FOB*!F3BD LVBR =!(50LDB*!F3BD*!87FOB) LVCS =F1CD*!87HC*!F2CD*50LDC*!87FOC*!F3CD LVCR =!(50LDC*!F3CD*!87FOC) =LVAQ =LVBQ =LVCQ =LVAQ =LVBQ =LVCQ FOPF =FPAD + FPBD + FPCD FOBF =FFAD + FFBD + FFCD 7-22 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 211: Flashover Protection Scheme 2

    =!50LD + !(46A + 46B + 46C) !(X * Y) => !X + !Y =LUQ*46A =LUQ*46B =LUQ*46C =LUQ*46A =LUQ*46B =LUQ*46C UBPF =UPAD + UPBD + UPCD UBBF =UFAD + UFBD + UFCD Date Code 20010731 Setting the Relay 7-23 SEL-352-1, -2 Instruction Manual...

  • Page 212: Loss-Of-Dielectric Detection

    =TRIPA + TRIPB + TRIPC =CLOSE + MCLOSE =CLOSE + MCLOSE =CLOSE + MCLOSE SYNCT =NA ZCNA ZCNB ZCNC ZCPA ZCPB ZCPC PCNA PCNB PCNC PCPA PCPB PCPC SYNCEN =NA =RCAD =RCBD =RCCD 7-24 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 213: Controlled Closing Scheme 2 (Point-On-Wave Closing)

    The default SEL control equation settings for the retripping logic Scheme 1 follow: OGIC LRTAS =NA LRTAR =NA LRTBS =NA LRTBR =NA LRTCS =NA LRTCR =NA =TRIPA =TRIPB =TRIPC Date Code 20010731 Setting the Relay 7-25 SEL-352-1, -2 Instruction Manual...

  • Page 214: Retripping Scheme 2

    Scheme 1 OGIC follow: =M4D L1MS =M86T*!M1D L1MR =M1D =L1MQ L2MS L2MR L3MS =M86T L3MR =!M86T*!50MD*M2D =!M86T*!50MD*M2D 86RS =M4D*!(CTF + TTF) 86BFT =L3MQ 7-26 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 215: Lockout Relay Control Scheme 2 (Mod Tripping)

    Table 7.8: SET Command Categories Function Logic Selection General Data Breaker Monitor and Miscellaneous CUSTOM OGIC Fault Current Logic Settings 1, 2, 3, 4, 5 CUSTOM Load Current Logic Settings 1, 2 CUSTOM Date Code 20010731 Setting the Relay 7-27 SEL-352-1, -2 Instruction Manual...
  • Page 216 CUSTOM Retrip Logic Settings 1, 2 CUSTOM CUSTOM OGIC 86BF Trip and Reset Logic Settings 1, 2 CUSTOM Event Report Trigger and SEL Output Equations OGIC Display Point Elements 7-28 Setting the Relay Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 217 ETTINGS ORKSHEET Page 1 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Report Settings (SET R Command) Input, Output, and Element Aliases Alias syntax is as follows: ELEMENT<SPACE>ALIAS_NAME. Aliases may contain the characters A–Z, 0–9, or ‘_’. For example: ALIAS1 = IN101 BREAKER_OPEN. Fifteen characters may be used in each alias.
  • Page 218 ETTINGS ORKSHEET Page 2 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Report Settings (SET R Command) (cont.) Sequential Events Recorder Settings Description Range Report Label 59 Characters (Text strings may contain any printing character (A–Z, 0–9, space, ., etc.), but they cannot start with ^, <, or >.)
  • Page 219 ETTINGS ORKSHEET Page 3 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Group Settings (SET Command) General Data Description Range RELID Relay Identifier: 17 Characters TRMID = Terminal Identifier: 39 Characters Breaker Monitor and Miscellaneous Description Range Nominal Breaker Trip Time 0–999 ms in 1-ms steps...
  • Page 220 ETTINGS ORKSHEET Page 4 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ (cont.) OGIC Timer T1A, T1B, and T1C Inputs Set A Elements OGIC Fault Current Logic Settings Description Range Fault Current Detector 0.50–45.00 A in 0.01-A steps (5 A) 0.10–9.00 A in 0.01-A steps...
  • Page 221 ETTINGS ORKSHEET Page 5 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Fault Current Logic Settings (cont.) Fault Current Timer 62TTA, 62TTB, and 62TTC Inputs Fault Current Latch LFA, LFB, and LFC Inputs LFAS LFAR LFBS LFBR LFCS...
  • Page 222 ETTINGS ORKSHEET Page 6 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Load Current Logic Settings (cont.) If LDLOG = Custom 62LP Pending Failure Pickup Time 0–16383 cycles in 1/4-cycle steps LPpu 62LD Breaker Failure Pickup Time 0–16383 cycles in 1/4-cycle steps...
  • Page 223 ETTINGS ORKSHEET Page 7 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Thermal Protection Logic Settings Description Range Phase Overpower Element 0.10–3400.00 W in 0.01-W steps (5 A) 0.02–680.00 W in 0.01-W steps (1 A) 37OP Negative Sequence Voltage 2.0–140.0 V in 0.1-V steps...
  • Page 224 ETTINGS ORKSHEET Page 8 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Thermal Protection Logic Settings (cont.) Thermal Protection Timer 62OP Inputs Thermal Protection Latch LTA, LTB, and LTC Inputs LTAS LTAR LTBS LTBR LTCS LTCR Trip Resistor Thermal Model Enables...
  • Page 225 ETTINGS ORKSHEET Page 9 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Flashover Protection Logic Settings Description Range Flashover Voltage Difference 1.0–150.0 V in 0.1-V steps Post Flashover Voltage Difference 1.0–150.0 V in 0.1-V steps 87FO Flashover Phase Voltage 1.0–130.0 V in 0.1-V steps...
  • Page 226 ETTINGS ORKSHEET Page 10 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Flashover Protection Logic Settings (cont.) Flashover Protection Latch LVA, LVB, and LVC Inputs LVAS LVAR LVBS LVBR LVCS LVCR Flashover Pending Failure Timer FPA, FPB, and FPC Inputs...
  • Page 227 ETTINGS ORKSHEET Page 11 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Unbalanced Current Protection Logic Settings Description Range 46UB Phase Current Unbalance Ratio 8, 16, 32, 64 Phase Current Unbalance Logic OFF, ON, CUSTOM UBLOG = If UBLOG = ON 62UC Close Input Timer Pickup Time 0–16383 cycles in 1/4-cycle steps...
  • Page 228 ETTINGS ORKSHEET Page 12 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Dielectric Monitor Logic Settings Description Range DELOG = Loss of Dielectric Logic OFF, ON, CUSTOM If DELOG = ON L2pu 62L2 Leak Timer Pickup Time 0–16383 cycles in 1/4-cycle steps...
  • Page 229 ETTINGS ORKSHEET Page 13 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Controlled Close Logic Settings (cont.) 62SYNC Timer Dropout Time 0–99999 cycles in 1/4-cycle steps SYNCdo = PCApu 62PCA Timer Pickup Time 0.00–40.00 ms in 0.01-ms steps 62PCB Timer Pickup Time 0.00–40.00 ms in 0.01-ms steps...
  • Page 230 ETTINGS ORKSHEET Page 14 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Controlled Close Logic Settings (cont.) Controlled Close RCA, RCB, and RCC Inputs Controlled Close Timer CCT, MCT, SYNCT, and SCT Inputs SYNCT Controlled Close Negative Zero Crossing...
  • Page 231 ETTINGS ORKSHEET Page 15 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Controlled Close Logic Settings (cont.) Controlled Close CCA, CCB, and CCC Outputs Retrip Logic Settings Description Range Circuit Breaker Retrip Logic OFF, 1, 2, CUSTOM RTPLOG...
  • Page 232 ETTINGS ORKSHEET Page 16 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ OGIC Description Range SBLOG = Set B OFF, CUSTOM OGIC If SBLOG = Custom 62T2A Pickup Time 0–16383 cycles in 1/4-cycle steps T2Apu 62T2A Dropout Time 0–16383 cycles in 1/4-cycle steps...
  • Page 233 ETTINGS ORKSHEET Page 17 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ (cont.) OGIC L4BS L4BR L4CS L4CR Latch L5A, L5B, and L5C Inputs L5AS L5AR L5BS L5BR L5CS L5CR Timer T3A, T3B, and T3C Inputs Latch L6A, L6B, and L6C Inputs...
  • Page 234 ETTINGS ORKSHEET Page 18 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ 86BF Trip and Reset Logic Settings M86T Trip Equation M86T Description Range MOD Operating Current 0.10–45.00 A in 0.01-A steps (5 A) 0.02–9.00 A in 0.01-A steps...
  • Page 235 ETTINGS ORKSHEET Page 19 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ 86BF Trip and Reset Logic Settings (cont.) Trip and Reset Timer M4 Input Motor-Operated Disconnect Trip Lockout Reset 86RS Breaker Failure Trip 86BFT = Amperes are set in secondary quantities.
  • Page 236 ETTINGS ORKSHEET Page 20 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Event Report Trigger Equation and SEL Output Equations OGIC Event Report Trigger Equation (SEL control equation) OGIC Mainboard Output Contacts (SEL control equations) OGIC OUT101 OUT102...
  • Page 237 ETTINGS ORKSHEET Page 21 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Event Report Trigger Equation and SEL Output Equations (cont.) OGIC Interface Board #2 Output Contacts (SEL control equations) OGIC OUT301 OUT302 OUT303 OUT304 OUT305 OUT306 OUT307...
  • Page 238 ETTINGS ORKSHEET Page 22 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Global Settings (SET G Command) Inputs (SEL Control Equations) OGIC Selector Switch One and Two Settings (SEL control equations) OGIC A-, B-, C-Phase and Three-Pole Trip Signals (SEL...
  • Page 239 ETTINGS ORKSHEET Page 23 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Global Settings (SET G Command) (cont.) Breaker Monitor Settings (Only available in SEL-352-2 Relay) Description Enable Breaker Contact Wear Monitoring Y, N EBCW Close/Open Set Point 1 1–65000 in steps of 1...
  • Page 240 ETTINGS ORKSHEET Page 24 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Port Settings (SET P Command) Port Description Port Number Port # Description Range Setting Serial Port Protocol SEL, LMD, DNP PROTO _________ _________ _________ _________ If PROTO = SEL...
  • Page 241 ETTINGS ORKSHEET Page 25 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Port Settings (SET P Command) (cont.) Port Description Port Number Port # If PROTO = DNP (SEL-352-2 Relay only) Serial Port Baud Rate 300, 1200, 2400, 4800,...
  • Page 242 ETTINGS ORKSHEET Page 26 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Port Settings (SET P Command) (cont.) Port Description Port Number Port # Time from Tx to RTS OFF 0.00– 30.00 sec PSTDLY _________ _________ _________ _________ Analog Deadband for 0–32767...
  • Page 243 ETTINGS ORKSHEET Page 27 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Text Settings (SET T Command) Local Bits The following settings determine the text string labels the relay front panel displays for each of the 16 Local Bits.
  • Page 244 ETTINGS ORKSHEET Page 28 of 28 SEL-352-1, -2 R FOR THE ELAY Date ________ Text Settings (SET T Command) (cont.) Display Point Set and Clear Labels The following settings determine text string labels the relay front panel displays for each of the 16 Display Points when they are in either the set (logical 1) or clear (logical 0) position.
  • Page 245 CEVE (Compressed Event) ..................8-17 CLO (Close)........................ 8-17 CON n (Control RBn)....................8-18 COP m n (Copy Settings) ................... 8-18 DAT (Date) ......................... 8-19 EVE (Event Reports) ....................8-19 Date Code 20010731 Serial Port Communications and Commands SEL-352-1, -2 Instruction Manual...
  • Page 246 Figure 8.1: SEL-352 Relay Serial Port Connectors................8-2 Figure 8.2: Access Level Relationships....................8-12 Figure 8.3: CCMD Relay Word Bit...................... 8-17 Figure 8.4: TCMD Relay Word Bit ...................... 8-27 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 247: Serial Port Communications And Commands

    Port 1, 2, 3, and 4 are given on the relay rear panel and detailed in Table 8.1. A drawing of the 9-pin port connector and pin definitions appears in Figure 8.1. Date Code 20010731 Serial Port Communications and Commands SEL-352-1, -2 Instruction Manual...
  • Page 248 Any combination of these ports or all of them may be used for relay communication. Table 8.2 gives a list of cables that can be purchased from SEL for various communication applications. Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 249 Call the factory for further information on these products. The following cable diagrams show several types of EIA-232 serial communications cables. These and other cables are available from SEL. Contact the factory for more information. Date Code 20010731 Serial Port Communications and Commands SEL-352-1, -2 Instruction Manual...

  • Page 250: Sel-352 Relay To Computer

    20 DTR SEL-352 Relay to Modem Cable C222 SEL-352 Relay **DCE Device 9-Pin Male 25-Pin Male “D” Subconnector “D” Subconnector TXD (IN) 20 DTR (IN) RXD (OUT) CD (OUT) Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 251: Relay To Sel-2020 Or Sel-2030

    9-Pin Male 9-Pin Male “D” Subconnector “D” Subconnector IRIG+ IRIG+ IRIG- IRIG- DTE = Data Terminal Equipment (Computer, Terminal, Printer, etc.) ** DCE = Data Communications Equipment (Modem, etc.) Date Code 20010731 Serial Port Communications and Commands SEL-352-1, -2 Instruction Manual...

  • Page 252: Communications Protocol

    87 percent full, and RTS deasserts when the communications port buffer is greater than 87 percent full. 3. If the SET P setting “RTS_CTS” = Y, the relay does not send characters until the CTS input is asserted. Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 253: Software Protocol

    XOFF command during transmission, it pauses until it receives an XON command. If there is no message in progress when the relay receives an XOFF command, it blocks transmission of any message presented to its buffer. Date Code 20010731 Serial Port Communications and Commands SEL-352-1, -2 Instruction Manual...

  • Page 254: Sel Distributed Port Switch Protocol

    SEL Compressed ASCII protocol provides compressed versions of some of the relay ASCII commands. SEL Compressed ASCII protocol is always available on any serial port. The protocol is described in Appendix E: Compressed ASCII Commands. Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 255: Automatic Messages

    Refer to Self-Testing Alarms in Section 6: Metering and Monitoring for a summary table of the self-tests. Section 6 provides a complete description of the status report. Date Code 20010731 Serial Port Communications and Commands SEL-352-1, -2 Instruction Manual...

  • Page 256: Summary Event Report

    Quick Reference section at the end of this instruction manual.) The commands can be accessed only from the corresponding access level as shown in Figure 8.2 and the Command Summary. The four access levels are: 8-10 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 257: Access Level 0

    After issuing the BAC command and entering the password if it is required, the relay pulses the alarm contact and is in Access Level B (breaker access level). The following prompt appears when in Access Level B: Date Code 20010731 Serial Port Communications and Commands 8-11 SEL-352-1, -2 Instruction Manual...

  • Page 258: Access Level 2

    While in Access Level 2, any of the commands available in the lower access levels can be executed. Figure 8.2: Access Level Relationships 8-12 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 259: Command Definitions

    PAS (Passwords) later in this section. Use the PASSWORD command from Access Level 2 to change passwords. Install main board jumper JMP6A to disable password protection. The following display indicates successful access to Level 1: @@@@@@ Date Code 20010731 Serial Port Communications and Commands 8-13 SEL-352-1, -2 Instruction Manual...

  • Page 260: Bac (Breaker Access Level)

    BRE S command. Refer to Breaker Monitor in Section 6: Metering and Monitoring for further information and a complete explanation of the report. 8-14 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 261: Bre C (Clear Breaker Report)

    Refer to Section 6: Metering and Monitoring, Breaker Monitor for more information and a complete description of the report. Percent wear is only available in the SEL-352-2 Relay. Date Code 20010731 Serial Port Communications and Commands 8-15 SEL-352-1, -2 Instruction Manual...

  • Page 262: Bre W (Preload Breaker Wear Data) (Sel-352-2 Relay)

    Use the BRE W command to preload contact wear, trip and close operation counters, and trip and close current accumulators on a per-phase basis. This command is only available in the SEL-352-2 Relay. =>>BREAKER W<ENTER> Breaker Summary Report is displayed here 8-16 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 263: Cal (Calibration Access Level)

    <ENTER> after either of the above prompts aborts the closing operation with the message “Command Aborted.” If the main board jumper JMP6B is not in place, the relay responds: “Aborted: Breaker Jumper Not in Place.” Date Code 20010731 Serial Port Communications and Commands 8-17 SEL-352-1, -2 Instruction Manual...

  • Page 264: Con N (Control Rbn)

    The ALARM output contact closes momentarily when you change settings in an active setting group, but not in an inactive setting group. Y<ENTER> 8-18 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 265: Dat (Date)

    Lc specifies the length in cycles (c = 1 to LER setting). EVE (Defaults) Display Most recent event (EVE 1) VX and I analogs, standard digitals 4 samples per cycle All available cycles Date Code 20010731 Serial Port Communications and Commands 8-19 SEL-352-1, -2 Instruction Manual...
  • Page 266 LER setting will produce an error. Refer to Event Reports in Section 10: Event Reports and SER for example event reports and descriptions. 8-20 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 267: Gro (Setting Group)

    Automatically repeat the HEAT command by adding a repeat count. To repeat the command 1000 times, type HEA 1000 <ENTER>. The command <CTRL>X cancels the listing at any time. Repetition is especially useful when testing thermal elements. Date Code 20010731 Serial Port Communications and Commands 8-21 SEL-352-1, -2 Instruction Manual...

  • Page 268: Hea C (Clear Resistor Heating)

    The date and time is saved to the nearest millisecond and referenced to the trigger row of data in the event report. An example of the display appears below. Note that in this example only seven events have occurred since the history was cleared: 8-22 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 269: His C (Clear History And Events)

    SEL control equations have OGIC been removed. If so, a warning is issued and the relay confirms the change again with “Are you sure (Y/N) ?” Date Code 20010731 Serial Port Communications and Commands 8-23 SEL-352-1, -2 Instruction Manual...
  • Page 270 (Entire status report not shown) Enter Access Level 1 (Password Jumper JMP6A Removed) ACC<ENTER> Display New I/O INI<ENTER> Enter Access Level 2 (Password Jumper JMP6A Removed) Initialize New I/O INI<ENTER> Y<ENTER> 8-24 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 271 Enter Access Level 1 (Password Jumper JMP6A Removed) ACC<ENTER> Display New I/O INI<ENTER> Enter Access Level 2 (Password Jumper JMP6A Removed) Initialize New I/O INI<ENTER> Y<ENTER> Y<ENTER> Relay Reenables Itself Date Code 20010731 Serial Port Communications and Commands 8-25 SEL-352-1, -2 Instruction Manual...

  • Page 272: Iri (Irig-B Synchronization)

    The OPEN command asserts the TCMD bit. The TCMD bit remains asserted for 30 cycles, then the relay checks the status of the 52A input assignments to determine if the breaker is open. 8-26 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 273: Pas (Passwords)

    The factory default passwords for Access Levels 1, B, and 2 are: Access Level Factory Default Password OTTER EDITH TAIL Use PAS<ENTER> to inspect passwords. The password for Level 1, B, and 2 are displayed. Date Code 20010731 Serial Port Communications and Commands 8-27 SEL-352-1, -2 Instruction Manual...
  • Page 274 <ENTER>. The relay responds with “Password Disabled.” After entering new passwords, type PAS<ENTER> to inspect them. Make sure they are what you intended, and record the new passwords. 8-28 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 275: Pul N (Pulse)

    This command is useful when settings have been changed, but the desired settings are similar to the factory default settings. R_S is only available from the calibration access level during normal operation. Date Code 20010731 Serial Port Communications and Commands 8-29 SEL-352-1, -2 Instruction Manual...

  • Page 276: Ser (Sequential Events Records)

    Clear the sequential event records from relay memory with the SER C command. The process may take up to 30 seconds under normal operation, or longer if the relay is busy processing a fault or protection logic. 8-30 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 277: Set (Edit Settings)

    Change the 50FT Setting SET 50FT TERSE<ENTER> 8.5<ENTER> END<ENTER> Y<ENTER> Verify the 50FT Setting SHO 50FT<ENTER> Issue <CONTROL>X to Stop Scrolling Date Code 20010731 Serial Port Communications and Commands 8-31 SEL-352-1, -2 Instruction Manual...

  • Page 278: Set G (Edit Global Settings)

    The entire syntax of the SET G command follows: SET G setting TERSE<ENTER> 8-32 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 279: Set P (Edit Port Settings)

    Refer to the SHO R command for a list of the factory default settings. Refer to Section 7: Setting the Relay for all default settings and settings worksheets. Date Code 20010731 Serial Port Communications and Commands 8-33 SEL-352-1, -2 Instruction Manual...

  • Page 280: Note: Make Sequential Events Recorder (Ser) Settings With Care

    <CTRL>Q (hold down the Control key and press Q) Restart Scrolling: <CTRL>S (hold down the Control key and press S) Cancel Scrolling Completely: <CTRL>X (hold down the Control key and press X) 8-34 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 281 Access Level 2. The following example shows the factory default settings for a nominal 5 A relay. Refer to Section 7: Setting the Relay for a list of all settings. SHO<ENTER> Group 1 Date Code 20010731 Serial Port Communications and Commands 8-35 SEL-352-1, -2 Instruction Manual...

  • Page 282: Sho G (Show Global Settings)

    Settings cannot be entered or modified with this command. Change settings with the SET P command from Access Level 2. The following example shows the factory default settings. Refer to Section 7: Setting the Relay for a list of all settings. 8-36 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 283: Sho R (Show Report Settings)

    Settings cannot be entered or modified with this command. Change settings with the SET R command from Access Level 2. The following example shows the factory default settings. Refer to Section 7: Setting the Relay for a list of all settings. Date Code 20010731 Serial Port Communications and Commands 8-37 SEL-352-1, -2 Instruction Manual...

  • Page 284: Sho T (Show Display Text Settings)

    Access Level 2 (SET command for DPn variables). The following example shows the factory default text settings. Refer to Section 7: Setting the Relay for all default settings and settings worksheets. 8-38 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 285: Sta (Status Report)

    Relay Word bit name. If n is not specified, the last default row is displayed. œ k specifies a repeat count for the command. The default is 1. œ X allows viewing a Relay Word row without changing the default row. Date Code 20010731 Serial Port Communications and Commands 8-39 SEL-352-1, -2 Instruction Manual...

  • Page 286: Tar F N (Show Relay Word Targets On Front Panel)

    œ k specifies a repeat count for the command for the serial port display. The default is 1. œ X allows remapping the LEDs to a Relay Word row without changing the default row. 8-40 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 287: Tar R (Reset Targets)

    (e.g., testing or commissioning). The event type is recorded as INT for internal triggering any time the relay is triggered. Date Code 20010731 Serial Port Communications and Commands 8-41 SEL-352-1, -2 Instruction Manual...

  • Page 288: Main Board Jumpers

    The main board jumpers listed in Table 8.6 affect the commands shown. Table 8.6: Main Board Jumpers Jumper Comment JMP6A Disables password protection when installed JMP6B Enables CLO, OPE, and PUL commands when installed 8-42 Serial Port Communications and Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 289 Attempt IRIG-B time-code input synchronization. The relay attempts synchronization automatically every minute. MET k Display metering data k times. METER Assert the TCMD bit for 30 cycles. JMP6B must be in place. CNTRL Date Code 20010731 Command Summary SEL-352-1, -2 Instruction Manual...
  • Page 290 Display relay time (24 hour time). OTHER TIM t1 Set relay time to t1 (t1 = h:m:s, seconds are optional) OTHER Trigger an event report. INT is reported for the event type. Command Summary Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 291 Figure 9.1: SEL-352 Relay Front-Panel Display..................9-1 Figure 9.2: Front-Panel Symbols for Asserted and Deasserted Bits ............9-2 Figure 9.3: Front-Panel Operation Map....................9-8 Figure 9.4: Front-Panel Operation Map (Continued) ................9-9 Date Code 20010731 Front-Panel Interface SEL-352-1, -2 Instruction Manual...

  • Page 293: Front-Panel Interface

    The back light will fail if lit for prolonged periods of time, and the target LEDs that may be changed using the TAR F command will not be reset to the default targets. Date Code 20010731 Front-Panel Interface SEL-352-1, -2 Instruction Manual...

  • Page 294: Displays

    NLBn: Local Bit Name label (max. 14 characters) CLBn: Local Bit Clear (OFF) label (max. 7 characters) SLBn: Local Bit Set (ON) label (max. 7 characters) PLBn: Local Bit Pulse (MOMENTARY) label (max. 7 characters) Front-Panel Interface Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 295 The relay stores the Local Bit states in nonvolatile memory. They will remain intact through loss of dc power to the relay and through settings changes, provided the settings changes themselves do not redefine the Local Bits or alter the conditions for operating them. Date Code 20010731 Front-Panel Interface SEL-352-1, -2 Instruction Manual...

  • Page 296: Display Points (Dp1-Dp16)

    PAS n DISABLE<ENTER> you will not be prompted for a password. When prompted for a password, enter the BAC or 2AC password, depending on the requirements of the command. All commands are available using the 2AC password. Front-Panel Interface Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 297: Pushbuttons

    <‘> and <“> buttons to scroll between DATE, TIME, and QUIT. The <SELECT> button selects which function to use. The QUIT function returns the relay to Access Level 1. The TIME and DATE functions display and set the relay’s internal clock. Date Code 20010731 Front-Panel Interface SEL-352-1, -2 Instruction Manual...

  • Page 298: Set

    SHOW displays the active group and the group variable. Selecting <SET> allows you to set the group variable by using the <’> and <”> buttons. When the desired group variable is displayed, press SELECT. The display prompts with: “Are you sure?” Front-Panel Interface Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 299: Cancel

    Button Similar Serial Port Commands TARGET RESET TAR R METER EVENTS HIS, SER, BRE STATUS OTHER DAT, TIM, QUI SET, SET P, SHO, SHO P, PAS CNTRL OPE, CLO (default) GROUP Date Code 20010731 Front-Panel Interface SEL-352-1, -2 Instruction Manual...
  • Page 300 Figure 9.3: Front-Panel Operation Map Front-Panel Interface Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 301 Figure 9.4: Front-Panel Operation Map (Continued) Date Code 20010731 Front-Panel Interface SEL-352-1, -2 Instruction Manual...
  • Page 303 Retrieving SER Report ..................... 10-14 Clearing the SER Report ....................10-15 SER Report Headings ....................... 10-15 SER Report Column Definitions ..................10-15 Date and Time......................10-16 Element ........................10-16 State .......................... 10-16 Date Code 20010731 Event Reports and SER SEL-352-1, -2 Instruction Manual...
  • Page 304 Table 10.1: Event Report Columns (EVENT n Command)..............10-9 Table 10.2: Event Report Columns (EVENT A n Command)............10-11 Table 10.3: Event Types........................10-12 FIGURES Figure 10.1: Typical 86BFT Assertion ....................10-3 Event Reports and SER Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 305: Section 10: Event Reports And Ser

    The following example defines an alias for the 50FT Relay Word bit. Make the assignment by entering the Relay Word bit, followed by a <SPACE>, followed by the alias name. ALIAS1 = 50FT FAULT_CURRENT Date Code 20010731 Event Reports and SER 10-1 SEL-352-1, -2 Instruction Manual...

  • Page 306: Label

    The relay stores 64 samples per cycle of unfiltered data. Display options allow you to view the event in a 4-, 8-, 16-, or 64-sample per cycle format, and to display 1 to 60 cycles of data depending on the LER setting. 10-2 Event Reports and SER Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 307: Event Report Triggering

    The trigger time stamp accuracy is ±2 ms. The MER setting OGIC equation controls the MER Relay Word bit. MER is set to trigger event reports for conditions other than 86BFT tripping conditions. The factory settings are: Date Code 20010731 Event Reports and SER 10-3 SEL-352-1, -2 Instruction Manual...

  • Page 308: Trigger Command

    The parameters may be entered in any order after the three-letter command EVE, but these parameters must be separated by spaces or commas. The following is a summary of the parameters and some examples: 10-4 Event Reports and SER Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 309 1 to LER in cycles. If LER = 30, then L30 is the largest value that may be entered. If the Lc parameter is unspecified, the relay defaults to the LER setting. Any attempt to enter a length Date Code 20010731 Event Reports and SER 10-5 SEL-352-1, -2 Instruction Manual...

  • Page 310: Event Report Description

    Group 1 Group settings are displayed here (SET, SHO) Global Global settings are displayed here (SET G, SHO G) Report settings are displayed here (SET R, SHO R) 10-6 Event Reports and SER Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 311 Group 1 Group settings are displayed here (SET, SHO) Global Global settings are displayed here (SET G, SHO G) Report settings are displayed here (SET R, SHO R) Date Code 20010731 Event Reports and SER 10-7 SEL-352-1, -2 Instruction Manual...

  • Page 312: Heading

    The digital columns show relay elements, outputs, and inputs. The column headings, data symbols, and descriptions are listed in Table 10.1 and Table 10.2. 10-8 Event Reports and SER Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 313 Two retrip elements asserted All three retrip elements asserted Motor operated disconnect trip element asserted 86RS 86RS Lockout relay reset element asserted 86BFT 86BFT Lockout relay trip element asserted Date Code 20010731 Event Reports and SER 10-9 SEL-352-1, -2 Instruction Manual...
  • Page 314 Optoisolated input IN103 asserted Optoisolated input IN104 asserted Both IN103 and IN104 asserted IN 105&6 IN105, IN106 Optoisolated input IN105 asserted Optoisolated input IN106 asserted Both IN105 and IN106 asserted 10-10 Event Reports and SER Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 315 C-phase close or trip resistor thermal failure element asserted Two thermal elements picked up Three thermal elements picked up Synchronism checking element picked up Negative-sequence overvoltage (V element picked up (47Q=X47Q+Y47Q) Date Code 20010731 Event Reports and SER 10-11 SEL-352-1, -2 Instruction Manual...

  • Page 316: Event Type

    Assertion of Relay Word bit TRIPB TRIPC Assertion of Relay Word bit TRIPC CLOSE Assertion of Relay Word bit CLOSE or MCLOSE Assertion of Relay Word bit MER or execution of TRIGGER command 10-12 Event Reports and SER Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 317: Frequency Tracking

    Automated clearing of the event buffer should be limited to reduce the &$87,21 possibility of wearing out the nonvolatile memory. Limit automated HIS C commands to once per week or less. Date Code 20010731 Event Reports and SER 10-13 SEL-352-1, -2 Instruction Manual...

  • Page 318: Sequential Events Recorder (Ser) Report

    The relay stores the latest 512 rows of the SER event report in nonvolatile memory. Row 1 is the oldest row, and the greatest row number is the most recent SER trigger. You can access these lines with the SER command as follows: 10-14 Event Reports and SER Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 319: Clearing The Ser Report

    Refer to the example SER event report that follows to view SER event report columns. Each row in the SER event report contains date, time, Relay Word bit name or alias, and the state of the bit. Date Code 20010731 Event Reports and SER 10-15 SEL-352-1, -2 Instruction Manual...

  • Page 320: Date And Time

    0 to a logical 1, then “Asserted” is displayed. If the bit transitions from a logical 1 to a logical 0, then “Deasserted” is displayed. 10-16 Event Reports and SER Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 321 Trapped Charge Detection Logic Test ..................11-36 Instantaneous Retrip, Scheme 1 Retrip Logic Test ..............11-37 Time-Delayed Retrip, Scheme 2 Retrip Logic Test..............11-37 Lockout Relay Control, Scheme 1 Logic Test ................. 11-38 Date Code 20010731 Testing and Troubleshooting SEL-352-1, -2 Instruction Manual...
  • Page 322 Figure 11.2: Relay Part Number and Hardware Identification Sticker ..........11-4 Figure 11.3: Test Connections With Three-Phase Voltage and Three-Phase Current Sources ..... 11-7 Figure 11.4: Test Connections With Three-Phase Voltage and Two-Phase Current Sources ....11-8 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 323: Section 11: Testing And Troubleshooting

    TAR F 50FT <ENTER>, the terminal displays the labels and status for each bit in the Relay Word Row (8), and the LEDs display their status. Thus, with these new targets Date Code 20010731 Testing and Troubleshooting 11-1 SEL-352-1, -2 Instruction Manual...

  • Page 324: Output Contact Assertion

    You can test the relay processing module using signals from the SEL-RTS Low-Level Relay Test System. Never apply voltage signals greater than 9 V peak-to-peak to the low-level test interface. Figure 11.1 shows the signal scaling factors. 11-2 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 325: Initial Checkout

    In the procedure below, you will use several relay commands. Section 8: Serial Port Communications and Commands provides a full explanation of all commands. However, the following information should allow you to complete the checkout without referring to the detailed descriptions. Date Code 20010731 Testing and Troubleshooting 11-3 SEL-352-1, -2 Instruction Manual...
  • Page 326 Purpose: Apply control voltage to the relay, and start Access Level 0 communications. Method: Turn on the relay power. The enable target (EN) LED should illuminate. If not, be sure that power is present. Type <ENTER> from your terminal 11-4 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 327 Purpose: View factory settings entered before shipment. Method: The relay is shipped with factory settings; type SHOWSET <ENTER> to view the settings. The terminal display should look similar to the following: Date Code 20010731 Testing and Troubleshooting 11-5 SEL-352-1, -2 Instruction Manual...
  • Page 328 26TPC + MDT OUT101 =86BFT OUT102 =86BFT OUT103 =BALRM OUT104 =!50MNA*!50MNB*!50MNC*!52AA*!52AB*!52AC OUT105 =MDT OUT106 =LPF + FOPF + UBPF OUT107 =86RS =IN104 DP10 DP11 DP12 DP13 DP14 DP15 DP16 11-6 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 329 1.73. Real power P and reactive power Q should be approximately 0. When finished, turn off the simulated power system secondary voltage sources. Figure 11.3: Test Connections With Three-Phase Voltage and Three- Phase Current Sources Date Code 20010731 Testing and Troubleshooting 11-7 SEL-352-1, -2 Instruction Manual...
  • Page 330 Step 11. With applied currents of one ampere per phase and a current transformer ratio of 600:1 (SHO CTR <ENTER> displays the CT ratio, <CTRL> X cancels scrolling), the displayed 11-8 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 331 For example, to see the row of the Relay Word that has OUT301, type TAR F OUT301 <ENTER>. The relay will not display output elements that your interface board does not support. Date Code 20010731 Testing and Troubleshooting 11-9 SEL-352-1, -2 Instruction Manual...
  • Page 332 Method: Type SER <ENTER>. The relay displays up to 512 SERs. The last few SERs correspond to your most recent test. The SER time stamps each assertion or deassertion of the elements you programmed in the SER1 11-10 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 333: Full Functional Test

    Following the 47Q prompt, type the new setting and press <ENTER>. 3. To complete the setting procedure, type END and press <ENTER>. Type Y <ENTER> at the prompt: Save Changes ? Date Code 20010731 Testing and Troubleshooting 11-11 SEL-352-1, -2 Instruction Manual...

  • Page 334: Meter Test

    Simultaneous application of voltage and current to the relay could cause the breaker resistor thermal elements to operate. Use the HEAT R command to reset the energy levels of the resistor thermal models after completing this test. 11-12 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 335: Phase Overcurrent Element Tests

    3. Verify the test results with the appropriate setting. Use the SHO command to check the setting. The 50N element operates on 3I . If current is applied to only one phase, the pickup point should equal the setting. Date Code 20010731 Testing and Troubleshooting 11-13 SEL-352-1, -2 Instruction Manual...

  • Page 336: Phase Voltage Element Tests

    3. Verify the results with the indicated setting. Negative-sequence voltage V equals one-third of the applied single-phase voltage. Thus, with a 47Q setting of 10 V, the elements pick up when you apply a single-phase voltage of 30 V. 11-14 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 337: Phase Overpower Element Test

    37OP, 37OPA, 37OPB, 37OPC 3. Apply 10 V to the voltage input of the phase under test. Increase phase current (I) slowly and observe element pickup and dropout. Record the results. Date Code 20010731 Testing and Troubleshooting 11-15 SEL-352-1, -2 Instruction Manual...

  • Page 338: Differential Voltage Element Tests

    2. Using the TARGET F command with the element name, set the bottom row of the front-panel target LEDs to display the appropriate synchronism checking element. Select one of the phase voltage elements from the Relay Word as indicated below: 11-16 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 339: Fault Current Breaker Failure, Scheme 1 Logic Test

    FBF element asserts, and set the SER to trigger for the TRIPA, 50FT, and FBF elements. Verify the settings with the SHO command, and the SHO G command for TRIPA. Setting Elements FTLOG, 50FT, 50FT, FBF FCpu, TTdo TRIPA Date Code 20010731 Testing and Troubleshooting 11-17 SEL-352-1, -2 Instruction Manual...
  • Page 340 Step 1. View the SER using the SER command. These time stamps will also verify the TTdo and FCpu timers. The TTdo timer is the time the FBF bit remains asserted after the TRIPA input was deasserted. 11-18 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 341: Fault Current Breaker Failure, Scheme 2 Logic Test

    Select Scheme 3 by setting FTLOG = 3 in the relay setting group. Using the SET command, set an output to close when the FBF Date Code 20010731 Testing and Troubleshooting 11-19 SEL-352-1, -2 Instruction Manual...
  • Page 342 Steps 10 and 11. This time, turn off A-phase current 1.5 to 2.0 cycles before the 62FC timer expires. The FBF bit should not assert. 11-20 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 343: Fault Current Breaker Failure, Scheme 4 Logic Test

    8. Repeat Steps 3, 4, 5, 6, and 7 (optional) for phases B and C. 9. Assert the TRIPA input. Apply A-phase current TTpu cycles following TRIPA Date Code 20010731 Testing and Troubleshooting 11-21 SEL-352-1, -2 Instruction Manual...

  • Page 344: Fault Current Breaker Failure, Scheme 5 Logic Test

    8. When Scheme 5 is enabled, the TRIPA input is not latched. Thus, if the TRIPA input deasserts while phase current is applied but before 62FC timer expiration, the relay does not assert the FBF bit. 11-22 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 345: Load Current Breaker Failure, Scheme 1 Logic Test

    LPF bit in a programmable output contact mask, and perform Steps 3, 4, 5, 6, and 7 to test the load current pending failure logic. 10. For each test, the relay generated a sequential events record for the elements Date Code 20010731 Testing and Troubleshooting 11-23 SEL-352-1, -2 Instruction Manual...

  • Page 346: Load Current Breaker Failure, Scheme 2 Logic Test

    10. For each test, the relay generated a sequential events record for the elements programmed in Step 1. View the SER using the SER command. These time 11-24 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 347: Circuit Breaker Close Resistor Thermal Failure Logic Test

    Note: Applied current (Ia) must exceed 0.1 A to operate the CTF bit. 6. Calculate an estimated time to trip (TTT) in seconds by dividing the 26CF setting by Pa: TTT = Date Code 20010731 Testing and Troubleshooting 11-25 SEL-352-1, -2 Instruction Manual...
  • Page 348 Step 1 asserts. 4. Assert the TRIPA input by applying dc control voltage to the input terminals. 5. Apply voltage higher than the 87TH setting to the A-phase voltage input. 11-26 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 349: Voltage Nulling Logic Test

    Method: 1. Verify the settings with the SHO command and the SHO G command for TRIPA, CLOSE, MCLOSE, and 52AA. Set the SER to trigger for KTRK and 52AA. Date Code 20010731 Testing and Troubleshooting 11-27 SEL-352-1, -2 Instruction Manual...
  • Page 350 15. Apply dc control voltage to the input assigned to 52AA. This should start the timer. KTRK asserts VNpu minutes after the input is asserted. Verify your timer value with the VNpu setting. 11-28 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 351 You can set the FOPF bit in a programmable output contact mask, and perform Steps 3, 4, 5, 6, and 7 for the flashover pending failure logic. 10. For each test, the relay generated a sequential events record for the elements Date Code 20010731 Testing and Troubleshooting 11-29 SEL-352-1, -2 Instruction Manual...
  • Page 352 On the fourth repetition, assert the 52AA input (but no other inputs) before applying phase voltage. In these repetitions, the relay should not assert the FOBF bit. 11-30 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 353 7. Repeat Steps 3, 4, and 6 three times. During the first two repetitions, do not assert the CLOSE or MCLOSE inputs before applying phase current. During the second Date Code 20010731 Testing and Troubleshooting 11-31 SEL-352-1, -2 Instruction Manual...

  • Page 354: Loss-Of-Dielectric Logic Test

    LODPF closes. 6. Assert the LOD2 input by applying dc control voltage to the assigned input terminals. Verify that the output contact programmed for LODPF in Step 1 closes. 11-32 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 355: Staggered Close Logic Test

    5. Connect an external timer, and set it to start when the programmable output you set in Step 1 closes and stop when the output opens. 6. Apply dc control voltage to the input assigned to CLOSE. Date Code 20010731 Testing and Troubleshooting 11-33 SEL-352-1, -2 Instruction Manual...

  • Page 356: Point-On-Wave Close Logic Test

    2. Apply a balanced 67 V to VAX, VBX, and VCX (each 120• out of phase). 3. Assert the CLOSE input to initiate point-on-wave closing. 4. Deassert the CLOSE input. 5. Verify that the CCA element asserted and deasserted by viewing the SER. 11-34 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 357 MCLOSE to the deassertion of ZCNA should be 2 cycles. 13. Verify the CLSdo setting for the CLOSE input by viewing the SER. From assertion of CLOSE to the deassertion of ZCNA should be the CLSdo setting. Date Code 20010731 Testing and Troubleshooting 11-35 SEL-352-1, -2 Instruction Manual...

  • Page 358: Synchronism Close Logic Test

    SEL-AMS. The SEL-RTS Relay Test System includes an SEL-AMS and uses a COMTRADE format for data input. Contact a customer service representative for more information. 11-36 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 359 4. A moment later, the output contact you set in Step 1 should close, stopping the external timer. Take note of the time recorded. It should be approximately equal to the RTpu timer setting. Date Code 20010731 Testing and Troubleshooting 11-37 SEL-352-1, -2 Instruction Manual...
  • Page 360 8. M2pu cycles after the 86BFT output asserts, it should deassert, stopping the timer. The timer reading should be approximately equal to the M2pu timer setting. 9. Reconnect the timer to stop when the programmable output contact set to indicate 86RS closes. 11-38 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 361 2. Enable Scheme 2 of the failure-to-trip load current logic using SET LDLOG. Save the settings. This logic sets the LBF bit based on the breaker status and the TRIPA input. Date Code 20010731 Testing and Troubleshooting 11-39 SEL-352-1, -2 Instruction Manual...
  • Page 362 86BFT output and assertion of the 86RS element. 19. Optional. If you apply phase current above the 50MD setting you will delay assertion or deassert MDT, delay deassertion of 86BFT, and delay assertion of 86RS. 11-40 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 363: Serial Ports Test

    4. Compare the +5 V readings from the status report and voltmeter. The voltage difference should be less than 50 mV, and both readings should be within ±0.15 V of 5 V. Date Code 20010731 Testing and Troubleshooting 11-41 SEL-352-1, -2 Instruction Manual...

  • Page 364: Calibration

    6. If the serial port or front-panel interface that does not respond was working before, Steps 1–5 above have been tried, and the meter command was the last issued command, the Digital Signal Processor may have failed, and you should call the factory. 11-42 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 365: Tripping Output Relay Remains Closed Following Fault

    1. Power supply +5 V output out-of-tolerance. See STATUS command. 2. A/D converter failure. Self-Test Failure: +15 V 1. Power supply +15 V output out-of-tolerance. See STATUS command. 2. A/D converter failure. Date Code 20010731 Testing and Troubleshooting 11-43 SEL-352-1, -2 Instruction Manual...

  • Page 366: Self-Test Failure: Offset

    2. Main board failure, contact the factory. Alarm Contacts Closed 1. Power is off. 2. Blown fuse. 3. Power supply failure. 4. Main board or interface board failure. 5. Other self-test failure. 11-44 Testing and Troubleshooting Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 367: Self-Test Failure: Temp After R_S Command

    ACTORY SSISTANCE The employee-owners of Schweitzer Engineering Laboratories are dedicated to making electric power safer, more reliable, and more economical. We appreciate your interest in SEL products, and we are committed to making sure you are satisfied.
  • Page 369 TABLE OF CONTENTS APPENDIX A: FIRMWARE VERSIONS IN THIS MANUAL .... A-1 Date Code 20010731 Firmware Versions in This Manual SEL-352-1, -2 Instruction Manual...
  • Page 371 The firmware revision number is after the “R” and the release date is after the “D”. This manual covers SEL-352-1 and SEL-352-2 Relays that contain firmware bearing the following part numbers and revision numbers (most recent firmware listed at top): Flash Firmware Part/Revision No.
  • Page 372 SEL OGIC control equation Compares. SEL-352-1-R100 This firmware is the initial release for the SEL-352-1 Relay. Additions were made to the SEL-352 firmware version R102 to improve performance. These include: œ Subsidence Current Logic for 50FT element œ...
  • Page 373 TABLE OF CONTENTS APPENDIX B: FIRMWARE UPGRADE INSTRUCTIONS ....B-1 Firmware (Flash) Upgrade Instructions ..................B-1 Important Note Regarding Settings..................... B-1 Required Equipment........................B-1 Upgrade Procedure ........................B-1 Date Code 20010731 Firmware Upgrade Instructions SEL-352-1, -2 Instruction Manual...
  • Page 375  Connect the personal computer to the relay serial port 2, 3, or 4, and enter Access Level 2 by issuing the ACC and 2AC commands. Note: Disconnect any other serial port connections. Date Code 20010731 Firmware Upgrade Instructions SEL-352-1, -2 Instruction Manual...
  • Page 376 No activity will be seen on the PC screen, because the relay is waiting for the PC to request the first XMODEM data packet. Select the Firmware Upgrade Instructions Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 377 If the EN LED is illuminated, proceed to Step 14; otherwise, the relay may display various self-test failures because of changes in the way memory is used. Date Code 20010731 Firmware Upgrade Instructions SEL-352-1, -2 Instruction Manual...
  • Page 378 14. Verify the calibration settings by issuing the SHO C command. If the settings do not match the settings recorded in Step 3, reissue the settings with the SET C command. Firmware Upgrade Instructions Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 379 Issue the Trigger (TRI) and Event (EVE) commands. Verify that the current and voltage signals are correct in the event report. The relay is now ready for your commissioning procedure. Date Code 20010731 Firmware Upgrade Instructions SEL-352-1, -2 Instruction Manual...
  • Page 381 TABLE OF CONTENTS APPENDIX C: SEL DISTRIBUTED PORT SWITCH PROTOCOL (LMD)..........C-1 Settings ............................C-1 Operation ............................. C-1 Date Code 20010731 SEL Distributed Port Switch Protocol (LMD) SEL-352-1, -2 Instruction Manual...
  • Page 383 Note: You can use the front-panel SET command to change the port settings to return to SEL protocol. Date Code 20010731 SEL Distributed Port Switch Protocol (LMD) SEL-352-1, -2 Instruction Manual...
  • Page 385 A5E0 Fast Operate Remote Bit Control ................D-6 A5E3 Fast Operate Breaker Control................... D-7 ID Command Response ....................... D-7 DNA Command Response....................D-7 BNA Command Response....................D-8 Date Code 20010731 Configuration, Fast Meter, and Fast Operate Commands SEL-352-1, -2 Instruction Manual...

  • Page 387: Appendix D: Configuration, Fast Meter, And Fast Operate Commands

    Description of Response from Relay ASCII Firmware ID, Terminal ID Setting (TRMID) and Modbus code ASCII Names of Relay Word bits ASCII Names of bits in the A5B9 Status Byte Date Code 20010731 Configuration, Fast Meter, and Fast Operate Commands SEL-352-1, -2 Instruction Manual...

  • Page 388: Message Definitions

    Analog channel name (VAX) Analog channel type (integer) Scale factor type (float) 008A Scale factor offset (hex) 494100000000 Analog channel name (IA) Analog channel type (integer) Configuration, Fast Meter, and Fast Operate Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 389 FFFF No skew adjustment (-1) FFFF No Rs compensation (-1) FFFF No Xs compensation (-1) Channel index No index (-1) No index (-1) No index (-1) Date Code 20010731 Configuration, Fast Meter, and Fast Operate Commands SEL-352-1, -2 Instruction Manual...

  • Page 390: A5D1 Fast Meter Data Block

    Block, the external device should request the A5C1 Fast Meter Configuration Block. The external device can then determine if the scale factors or line configuration parameters have been modified. Configuration, Fast Meter, and Fast Operate Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 391 Operate code, pulse remote bit RB11 Operate code, clear remote bit RB12 Operate code, set remote bit RB12 Operate code, pulse remote bit RB12 Operate code, clear remote bit RB13 Date Code 20010731 Configuration, Fast Meter, and Fast Operate Commands SEL-352-1, -2 Instruction Manual...
  • Page 392 œ The relay is enabled Remote bit set and clear operations are latched by the relay. Remote bit pulse operations assert the remote bit for one processing interval (1/8 cycle). Configuration, Fast Meter, and Fast Operate Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 393: A5E3 Fast Operate Breaker Control

    Appendix F: Relay Word. The DNA command response is formatted as follows: <STX>"EN","PF","86BFT","86RS","TRIP","CLOSE","52A","MOD","0B43"<CR> Date Code 20010731 Configuration, Fast Meter, and Fast Operate Commands SEL-352-1, -2 Instruction Manual...

  • Page 394: Bna Command Response

    "0987" is the 4-byte ASCII hex representation of the checksum "*" indicates an unused bit location. The BNA command is available from Access Level 1 and higher. Configuration, Fast Meter, and Fast Operate Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 395 TABLE OF CONTENTS APPENDIX E: COMPRESSED ASCII COMMANDS ......E-1 Introduction ..........................E-1 CASCII Command ........................E-1 CSTATUS Command........................E-3 CBREAKER Command .......................E-4 CHISTORY Command ........................E-4 CTARGET Command ........................E-5 CEVENT Command........................E-5 Date Code 20010731 Compressed ASCII Commands SEL-352-1, -2 Instruction Manual...
  • Page 397 ASCII commands available in the SEL-352 relay, type: CAS <CR> The relay sends: <STX>"CAS",7,"01A8"<CR> "CST",1,"01B7"<CR> "1H","FID","022C"<CR> "1D","35S","0210"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","0E52"<CR> "1D","I","I","I","I","I","I","I","05F4"<CR> "24H","IA","IB","IC","VAX","VBX","VCX","VAY","VBY","VCY","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","2A29"<CR> "1D","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S","9S", "9S","9S","9S","9S","9S","9S","9S","9S","9S","1885"<CR> "CBR",1,"01A4"<CR> "1H","FID","022C"<CR> "1D","35S","0210"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","0E52"<CR> "1D","I","I","I","I","I","I","I","05F4"<CR> "3H","MONTH_CLRD","DAY_CLRD","YEAR_CLRD","0A5C"<CR> "1D","I","I","I","0310"<CR> "7H","TRIPA","TRIPB","TRIPC","CLOSEA","CLOSEB","CLOSEC","LABEL","0F0A"<CR> Date Code 20010731 Compressed ASCII Commands SEL-352-1, -2 Instruction Manual...
  • Page 398 ","TRIG","DIGITAL ELEMENT NAMES","yyyy"<CR> "60D","F","F","F","F","F","F","F","F","F","1S","24S","099D"<CR> "CEV C",1,"020E"<CR> "1H","FID","022C"<CR> "1D","35S","0210"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","0E52"<CR> "1D","I","I","I","I","I","I","I","05F4"<CR> "5H","FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT","0E10" "1D","F","I","I","I","7S","04C0"<CR> "11H","VAY(kV)","VBY(kV)","VCY(kV)","VAX(kV)","VBX(kV)","VCX(kV)","IA","IB","IC ","TRIG","DIGITAL ELEMENT NAMES","yyyy"<CR> "240D","F","F","F","F","F","F","F","F","F","1S","24S","09CD"<CR> "CEV S64",1,"0288"<CR> "1H","FID","022C"<CR> "1D","35S","0210"<CR> "7H","MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","0E52"<CR> "1D","I","I","I","I","I","I","I","05F4"<CR> "5H","FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT","0E10"<CR> "1D","F","I","I","I","7S","04C0"<CR> "11H","VAY(kV)","VBY(kV)","VCY(kV)","VAX(kV)","VBX(kV)","VCX(kV)","IA","IB","IC ","TRIG","DIGITAL ELEMENT NAMES","yyyy"<CR> "960D","F","F","F","F","F","F","F","F","F","1S","24S","09D6"<CR> <ETX> Compressed ASCII Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 399 "IA","IB","IC","VAX","VBX","VCX","VAY","VBY","VCY","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","290B"<CR> "xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxx x","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<C R><ETX> where xxxx are the data values corresponding to the first line labels and yyyy is the 4-byte hex ASCII representation of the checksum. Date Code 20010731 Compressed ASCII Commands SEL-352-1, -2 Instruction Manual...
  • Page 400 Display history data in compressed ASCII format by sending: CHI <CR> The relay sends: <STX>"FID","0143"<CR> "FID=SEL-352-1-XXXX-DXXXXXX","yyyy"<CR> "MONTH_","DAY_","YEAR_","HOUR_","MIN_","SEC_","MSEC_","0D63"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR> "REC_NUM",MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","EVENT","GROUP ","1130"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"xxxx",xxxx,"yyyy"<CR> (the second line is then repeated for each record) <ETX> Compressed ASCII Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 401 UBPF FOBF FOPF CTF TTF LBF LPF RTC RTB RTA CCC CCB CCA LODBF LODPF * * * MER 86BFT 86RS MDT FBF !ALARM OUT107 OUT106 OUT105 OUT104 OUT103 OUT102 OUT101","8BBE"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,z,"RLY_BITS","yyyy"<CR> Date Code 20010731 Compressed ASCII Commands SEL-352-1, -2 Instruction Manual...
  • Page 402 RLY_BITS refers to the relay element data in hex ASCII. For example, if the RLY_BITS = “9B2400000000000000000000” (1001101100100100...) then Y59L3, 50LDB, 50LDA, 50FTB, 50FTA, Y27D3, 50MDC would be set and the rest of the elements would be clear. Compressed ASCII Commands Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 403 Control Equation SET B Elements................F-2 OGIC Logic Output Elements.........................F-3 86BF Trip and Reset Elements.....................F-3 Contact Output Elements and Display Points ................F-3 TABLES Table F.1: Relay Word ..........................F-1 Table F.2: Relay Word Bit Summary Table..................F-3 Date Code 20010731 Relay Word SEL-352-1, -2 Instruction Manual...
  • Page 405 L1CR L1CS L1BQ L1BR L1BS L1AQ L1AR L1AS T1CD T1BD T1AD L1CQ Fault Current Protection Elements LFAR LFAS TTCD TTBD TTAD LFCQ LFCR LFCS LFBQ LFBR LFBS LFAQ FCCD FCBD FCAD Date Code 20010731 Relay Word SEL-352-1, -2 Instruction Manual...
  • Page 406 L3CQ L3CR L4CR L4CS L4BQ L4BR L4BS L4AQ L4AR L4AS L5CS L5BQ L5BR L5BS L5AQ L5AR L5AS L4CQ T3CD T3BD T3AD L5CQ L5CR L6CR L6CS L6BQ L6BR L6BS L6AQ L6AR L6AS Relay Word Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 407 Close resistor Pending failure for phase A, B, or C 26CPB 26CPC 26TFA Trip resistor Failure for phase A, B, or C 26TFB 26TFC 26TPA Trip resistor Pending failure for phase A, B, or C 26TPB 26TPC Date Code 20010731 Relay Word SEL-352-1, -2 Instruction Manual...
  • Page 408 52AA Breaker status auxiliary input function for A-, B-, or C- 52AB phase 52AC 52ACV 52A Contradicts Voltage alarm 86BFT Lockout relay Breaker Failure Trip and Reset logic outputs 86RS Relay Word Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 409 View this bit with the TAR command, but it cannot be used in logic. CAMT Current After Motor operated disconnect Trip alarm Controlled Close output for A-, B-, or C-phase Point-on-wave automatic close input timer input and output CCTD Date Code 20010731 Relay Word SEL-352-1, -2 Instruction Manual...
  • Page 410 F1CD F2AD F2BD F2CD F3AD F3BD F3CD FAULT Fault target LED indicates an operation under fault conditions. View this bit with the TAR command, but it cannot be used in logic. Relay Word Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 411 Input contacts (assert when control voltage is applied to input terminals) IN309-IN316 Input contacts (assert when control voltage is applied to input terminals) KTRK Voltage nulling Tracking bit (set if voltage nulling) Date Code 20010731 Relay Word SEL-352-1, -2 Instruction Manual...
  • Page 412 Reset inputs, and Set inputs L2AS L2BQ L2BR L2BS L2CQ L2CR L2CS L3AQ L3AR L3AS L3BQ L3BR L3BS L3CQ L3CR L3CS L4AQ L4AR L4AS L4BQ L4BR L4BS L4CQ L4CR L4CS Relay Word Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 413 L7CS LB1-LB8 Local Control Bits LB9-LB16 Load and Line charging current logic Breaker Failure output Load current logic timer 62LD inputs and outputs for A-, LDAD B-, and C-phase LDBD LDCD Date Code 20010731 Relay Word SEL-352-1, -2 Instruction Manual...
  • Page 414 Loss-of-Dielectric Breaker Failure output LODCT Loss-of-Dielectric, Current Transformer level input LODPF Loss-of-Dielectric Pending Failure output Load current logic timer 62LP inputs and outputs for A-, B-, LPAD and C-phase LPBD LPCD F-10 Relay Word Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 415 Current Unbalance logic Latch output, Reset input, and Set input LVAQ Flashover logic Latch outputs, Reset inputs, and Set inputs LVAR for A-, B-, and C-phase LVAS LVBQ LVBR LVBS LVCQ LVCR LVCS Date Code 20010731 Relay Word F-11 SEL-352-1, -2 Instruction Manual...
  • Page 416 Thermal logic timer inputs and outputs for A-, B-, and OPAD C-phase OPBD OPCD OUT101 - Output contacts OUT107 OUT201 - Output contacts OUT208 OUT209 - Output contacts OUT216 OUT301 - Output contacts OUT308 OUT309 - Output contacts OUT316 F-12 Relay Word Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 417 Control Equation Set B outputs OGIC for A-, B-, and C-phase Slow Close alarm Synchronizing output timer input and output SCTD Group select input 1 and 2 Slow Trip alarm Date Code 20010731 Relay Word F-13 SEL-352-1, -2 Instruction Manual...
  • Page 418 Thermal logic Trip Resistor Model Enable for A-, B-, and TRMEB C-phase TRMEC Fault current logic Timer 62TT inputs and outputs for A-, TTAD B-, and C-phase TTBD TTCD Trip resistor Thermal Failure logic output F-14 Relay Word Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 419 X59LB X59LC XNTA X side, Positive (P) and Negative (N) Trapped charge XNTB detection for A-, B-, or C-phase XNTC XPTA XPTB XPTC Date Code 20010731 Relay Word F-15 SEL-352-1, -2 Instruction Manual...
  • Page 420 A-, B-, or C-phase YNTC YPTA YPTB YPTC ZCNA Positive (P) and Negative (N) Zero Crossings for A-, B-, or ZCNB C-phase ZCNC ZCPA ZCPB ZCPC ZERO Always zero F-16 Relay Word Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 421 Table G.1: Data Access Methods ......................G-3 Table G.2: SEL-352 Relay DNP Object Table ..................G-6 Table G.3: SEL-352 Relay DNP Data Map ..................G-9 Table G.4: SEL-352-2 Relay Binary Input Lookup Table..............G-13 Date Code 20010731 Distributed Network Protocol (DNP) 3.00 SEL-352-1, -2 Instruction Manual...

  • Page 423: Overview

    Enable unsolicited reporting at power-up (Y, N) REPADR DNP Address to report to (0–65534) NUMEVE Number of events to transmit on (1–200) AGEEVE Age of oldest event to transmit on (0–60 sec.) Date Code 20010731 Distributed Network Protocol (DNP) 3.00 SEL-352-1, -2 Instruction Manual...

  • Page 424: Data-Link Operation

    Based on the capabilities of the system, it is necessary to choose a method for retrieving data on the DNP connection. The following table summarizes the main options, listed from least to most efficient, and indicates corresponding key related settings. Distributed Network Protocol (DNP) 3.00 Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 425: Device Profile

    Object Group Request Function Codes Response Function Codes Object Variation Request Qualifiers Response Qualifiers Object Name (optional) Vendor Name: Schweitzer Engineering Laboratories, Inc. Device Name: SEL-352 Highest DNP Level Supported: Device Function: r Master ã Slave For Requests Level 2...
  • Page 426 Always r Sometimes r Configurable Queue ã Never r Always r Sometimes r Configurable Clear Queue Attach explanation if ’Sometimes’ or ’Configurable’ was checked for any operation. Distributed Network Protocol (DNP) 3.00 Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 427 Point-by-point list attached ã Yes ❒No Sends Multi-Fragment Responses: In all cases of a configurable item within the device profile, the item is controlled by SEL-352 Relay settings. Date Code 20010731 Distributed Network Protocol (DNP) 3.00 SEL-352-1, -2 Instruction Manual...

  • Page 428: Object Table

    16-Bit Frozen Delta Counter Without Flag à à à à à Counter Change Event–All Variations 6,7,8 à à à 32-Bit Counter Change Event Without Time 6,7,8 17,28 à Distributed Network Protocol (DNP) 3.00 Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 429 0,1,7,8 à 16-Bit Analog Output Status 0,1,6,7,8 0,1,7,8 à Analog Output Block–All Variations à à à à à 32-Bit Analog Output Block 3,4,5,6 17,28 echo of request à Date Code 20010731 Distributed Network Protocol (DNP) 3.00 SEL-352-1, -2 Instruction Manual...

  • Page 430: Data Map

    17,28 Ã No object 13,14,23 Ã Ã Ã The following is the default object map supported by the SEL-352-2 Relay (see Appendix A: Firmware Versions in This Manual). Distributed Network Protocol (DNP) 3.00 Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 431 Failed CB Close Resistors Put in Service. 20,22 52A contradicts voltage. 20,22 Current while open. 20,22 Trip while open. 20,22 CB did not close. 20,22 Current after MOD trip. Date Code 20010731 Distributed Network Protocol (DNP) 3.00 SEL-352-1, -2 Instruction Manual...
  • Page 432 Total Energy (MJ) TRIPA, B, C & CLOSEA, B, C. 30,32 53–58 Total Current (A) TRIPA, B, C & CLOSEA, B, C. 30,32 59–61 Breaker Wear % TRIPA, B, C. G-10 Distributed Network Protocol (DNP) 3.00 Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 433 Analogs 68–79 are derived from the history queue data for the most recently read fault and do not generate event messages. Analog 68 is defined as follows: Date Code 20010731 Distributed Network Protocol (DNP) 3.00 G-11 SEL-352-1, -2 Instruction Manual...
  • Page 434 Caution should be exercised with multiple remote bit pulses in a single message (i.e., point count > 1), as this may result in some of the pulse commands being ignored and returning an already active status. G-12 Distributed Network Protocol (DNP) 3.00 Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 435 T1BD T1AD L1CQ 191–184 199–192 Fault Current Protection Elements LFAR LFAS TTCD TTBD TTAD 207–200 LFCQ LFCR LFCS LFBQ LFBR LFBS LFAQ 215–208 FCCD FCBD FCAD 223–216 Date Code 20010731 Distributed Network Protocol (DNP) 3.00 G-13 SEL-352-1, -2 Instruction Manual...
  • Page 436 Breaker Alarm Elements CAMT BDNC 52ACV FCRS FTRS 415–408 BALRM 423–416 Circuit Breaker Retrip Elements LRTCR LRTCS LRTBQ LRTBR LRTBS LRTAQ LRTAR LRTAS 431–424 RT3D RT2D RT1D LRTCQ 439–432 G-14 Distributed Network Protocol (DNP) 3.00 Date Code 20010731 SEL-352-1, -2 Instruction Manual...

  • Page 437: Relay Summary Event Data

    The event summary analogs will retain this information until the next event is loaded. If no further event summaries are available, attempting to load the next event will cause the event type analog (point 68) to be set to 0. Date Code 20010731 Distributed Network Protocol (DNP) 3.00 G-15 SEL-352-1, -2 Instruction Manual...

  • Page 438: Point Remapping

    The relay accepts lines of indices until a line without a final continuation character (\) is entered. Each line of input is constrained to 80 characters, but all the points may be remapped, G-16 Distributed Network Protocol (DNP) 3.00 Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 439 2) is left for default scaling, but uses a dead band of ±10 counts. Similarly, the value that was at index 1 (now at index 3) is now scaled by 1 and uses a dead band of ±15 counts. Date Code 20010731 Distributed Network Protocol (DNP) 3.00 G-17 SEL-352-1, -2 Instruction Manual...

  • Page 440: Modem Support

    ASCII), is supported in the relay. Object 112 is used with the Function code Write (FC=2) to send data from the Master side to the Slave side (IED) of the link. G-18 Distributed Network Protocol (DNP) 3.00 Date Code 20010731 SEL-352-1, -2 Instruction Manual...
  • Page 441 DNP port, but you will need the appropriate access levels for setting changes and breaker operations. A virtual terminal session times out in the same way as an ASCII session. Date Code 20010731 Distributed Network Protocol (DNP) 3.00 G-19 SEL-352-1, -2 Instruction Manual...
  • Page 443 Attempt IRIG-B time-code input synchronization. The relay attempts synchronization automatically every minute. MET k Display metering data k times. METER Assert the TCMD bit for 30 cycles. JMP6B must be in place. CNTRL Date Code 20010731 Command Summary SEL-352-1, -2 Instruction Manual...
  • Page 444 Display relay time (24 hour time). OTHER TIM t1 Set relay time to t1 (t1 = h:m:s, seconds are optional) OTHER Trigger an event report. INT is reported for the event type. Command Summary Date Code 20010731 SEL-352-1, -2 Instruction Manual...

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