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Instruction Book M‑3311A Transformer Protection Relay...
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PROTECTION Transformer Protection M‑3311A Integrated Protection System ® Unit shown with optional M‑3931 HMI Module and M‑3911 Target Module • For Transformers of All Sizes: 2, 3 or 4 winding Transformers for Transmission and Distribution applications Generator-Transformer Unit Overall Differential ...
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M‑3311A Transformer Protection Relay Standard Protective Functions • Negative-sequence inverse time overcurrent (46) • Winding thermal protection (49) • Four winding instantaneous phase overcurrent (50) • Breaker Failure (50BF) • Instantaneous ground overcurrent (50G) • Instantaneous residual overcurrent (50N) • Four winding inverse time phase overcurrent (51) •...
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M‑3311A Transformer Protection Relay STANDARD PROTECTIVE FUNCTIONS Device Setpoint Number Function Ranges Increment Accuracy † Negative Sequence Overcurrent 46W2/46W3/46W4 Definite Time Pickup 0.10 to 20.00 A 0.01 A 0.1 A or 3% (0.02 to 4.00 A) (0.02 A or 3%)
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M‑3311A Transformer Protection Relay STANDARD PROTECTIVE FUNCTIONS (cont.) Device Setpoint Number Function Ranges Increment Accuracy † Instantaneous Residual Overcurrent Pickup 1.0 to 100.0 A 0.1 A 0.1 A or 3% (0.2 to 20.0 A) (0.02 A or 3%) Time Delay...
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M‑3311A Transformer Protection Relay STANDARD PROTECTIVE FUNCTIONS (cont.) Device Setpoint Number Function Ranges Increment Accuracy † Phase Differential Current Pickup 5.0 to 20.0 PU 0.1 PU 0.1 PU or 3% Time Delay 1 to 8160 Cycles 1 Cycle –1 to +3 Cycles or 1% Pickup 0.10 to 1.00 PU...
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M‑3311A Transformer Protection Relay STANDARD PROTECTIVE FUNCTIONS (cont.) Device Setpoint Number Function Ranges Increment Accuracy † IPSlogic IPSlogic uses element pickups, element trip commands, control/status input state changes, output contact close signals with programmable logic array to develop schemes. Reset/Dropout Delay #1–#6 0 to 65500 Cycles 1 Cycle 1 Cycle or 1%...
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M‑3311A Transformer Protection Relay STANDARD PROTECTIVE FUNCTIONS (cont.) Device Setpoint Number Function Ranges Increment Accuracy † Through Fault Through Fault 1.0 to 100.0 A 0.1A 0.1A or 5% Current Threshold (0.2 to 20.0 A) (0.02A or 5%) Through Fault Count Limit 1 to 65535 —...
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M‑3311A Transformer Protection Relay OPTIONAL VOLTAGE PROTECTION PACKAGE Device Setpoint Number Function Ranges Increment Accuracy † Volts/Hz Overexcitation Definite Time Pickup #1, #2 100 to 200% 1% Time Delay #1, #2 30 to 8160 Cycles 1 Cycle 25 Cycles Inverse Time...
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M‑3311A Transformer Protection Relay OPTIONAL VOLTAGE PROTECTION PACKAGE Device Setpoint Number Function Ranges Increment Accuracy † Overfrequency/Underfrequency Pickup #1, #2, #3, #4 55.00 to 65.00 Hz 0.01 Hz 0.1 Hz 45.00 to 55.00 Hz* Time Delay #1, #2, #3, #4 2 to 65,500** Cycles 1 Cycle –1 to +3 Cycles or 1%...
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M‑3311A Transformer Protection Relay Configuration Options The M-3311A Transformer Protection Relay may be purchased as a fully configured two, three or four winding Transformer Protection System. The M-3311A can also be purchased with the Optional Voltage Protection Package to expand the system to satisfy specific application needs.
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Through Fault Recorder In addition to the Even Recorder, the M-3311A also has a separate Through Fault Recorder, which records Through Faults. Each through fault record contains the serial number of the fault, duration of the event, maximum RMS fault current magnitude for each phase during the fault, I t and the time stamp of the fault.
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• The optional Ethernet port can be purchased with MODBUS over TCP/IP, BECO2200 over TCP/IP, DNP 3.0 protocol or with the IEC 61850 protocol Detailed documentation on the above protocols is available on the Beckwith Electric website, at www. beckwithelectric.com...
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M‑3311A Transformer Protection Relay IRIG‑B The M-3311A accepts either modulated (B-122) using the BNC Port or demodulated (B-002) using the RS-232 Port IRIG-B time clock synchronization signals. The IRIG-B time synchronization information is used to correct the local calendar/clock and provide greater resolution for target and oscillograph time tagging.
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M‑3311A Transformer Protection Relay Electrical Environment Electrostatic Discharge Test IEC 61000-4-2 Level 4 (8 kV)–point contact discharge IEC 61000-4-2 Level 4 (15 kV)–air discharge Fast Transient Disturbance Test IEC 61000-4-4 Level 4 (4 kV, 5 kHz) Emissions EN 55022 Class A Limits Conducted Emissions 150 kHz–30 MHz CISPR22...
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See M-3311A Instruction Book, Appendix E, Layup and Storage for additional information. Patent & Warranty The M-3311A Generator Protection Relay is covered by a ten-year warranty from date of shipment. Specification subject to change without notice. –15–...
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Winding 2 Events (W2) Waveform Capture IRIG-B Front RS232 Communication Rear RS-232/485 Communication Multiple Setting Groups Programmable I/O Programmable Logic Self Diagnostics Dual Power Supply (Optional) Figure 3 M‑3311A (Two Winding‑Two or Four Voltage Inputs) Typical One‑Line Function Diagram –18–...
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NOTE: All 50 and 50G functions may be applied instantaneous or definite time, and are multiple (2) elements, each with individual pickup and time delay setpoints. Figure 4 M‑3311A (Three Winding‑Zero, Two or Four Voltage Inputs) Typical One‑Line Function Diagram...
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All 50 and 50G functions may be applied instantaneous or definite time, and are multiple (2) elements, each with individual pickup and time delay setpoints. Two voltage inputs are available in the 4-winding model of the M-3311A. These are a phase voltage Vφ use for the 59, 81O/U, 27, and 24 Functions and the V broken delta input voltage used for the 59G function.
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All 50 and 50G functions may be applied instantaneous or definite time, and are multiple (2) elements, each with individual pickup and time delay setpoints. Two voltage inputs are available in the 4-winding model of the M-3311A. These are a phase voltage use for the 59, 81O/U, 27, and 24 Functions and the V broken delta input voltage used for the φ...
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M‑3311A Transformer Protection Relay M-3311A System M-3311A M-3311A Figure 7 Dual Generator Power Plant Differential Zone of Protection System M-3311A Figure 8 Generator Plant Overall Differential Zone of Protection –22–...
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M‑3311A Transformer Protection Relay M-3311A System Figure 9 Three Winding Transformer with High Impedance Ground System System M-3311A M-3311A Figure 10 Dual Bank Distribution Substation –23–...
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M‑3311A Transformer Protection Relay 87GD W2 M-3311A NOTES: 1. Winding 1 & 2 current summed and Winding 3 & 4 current summed for overcurrent function 2. 87GDW2 function 3I current is the sum of W1, W2, W3 and W4 currents.
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M‑3311A Transformer Protection Relay 17.50 [44.45] ACTUAL 5.21 [13.23] ACTUAL 17.50 [44.45] 10.20 [25.91] 19.00 [48.26] 19.00 [48.26] 18.31 0.35 [46.51] [0.89] 0.40 [1.02] X 0.27 [0.68] Slot (4X) 2.25 [5.72] 1.48 [3.8] Standard 19" Horizontal Mount Chassis NOTE: Dimensions in brackets are in centimeters.
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M‑3311A Transformer Protection Relay NOTES: 1. Dimensions in brackets are in centimeters. 2. See Instruction Book Chapter 5 for Mounting and Cutout information. Figure 14 Horizontal Unit Dimensions With Expanded I/O –26–...
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M‑3311A Transformer Protection Relay 5.65 [14.40] 5.59 6.19 0.03 [14.20] [15.7] [0.076] Actual 2.25 1.97 2.25 1.67 0.35 [5.72] [5.0] [5.72] [4.24] [0.89] 0.28 [0.71] Dia. (4X) TARGETS 19.00 [48.26] OUTPUTS OUT 1 OUT 3 OUT 5 OUT 7 18.30...
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( 3 A B ) P S 1 NOTES: 1. The M-3311A Expanded I/O vertical panel is the same physical size as the M-3311A Expanded I/O horizontal panel. See Figure 14 for dimensions. 2. See Instruction Book Chapter 5 for Mounting and Cutout information.
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WARNING DANGEROUS VOLTAGES, capable of causing death or serious injury, are present on the external terminals and inside the equip- ment. Use extreme caution and follow all safety rules when han- dling, testing or adjusting the equipment. However, these internal voltage levels are no greater than the voltages applied to the exter- nal terminals.
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PRODUCT CAUTIONS Before attempting any test, calibration, or maintenance procedure, personnel must be completely familiar with the particular circuitry of this unit, and have an adequate understanding of field effect devices. If a component is found to be defective, always follow replacement procedures carefully to that assure safety features are maintained.
Appendix D: Inverse Time Curves ............1-2 Appendix E: Layup and Storage ............1-2 Appendix F: HMI Menu Flow ..............1-2 M-3311A Transformer Protection Relay ..........1-2 Communication Ports ................1-3 S-3300 IPScom Communications Software .......... 1-3 Accessories ................... 1-4 M-3911A Target Module ................
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M‑3311A Instruction Book Chapter 2 Operation (Cont.’d) Operation (HMI/PC) ................2-4 HMI Operation Overview ............... 2-4 Default Message Screens ..............2-4 HMI Security ..................2-4 Status Monitoring (From Relay Front Panel) ......... 2-6 Status Monitoring (From IPScom ) ............2-7 ®...
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M‑3311A Instruction Book Chapter 3 IPScom ® IPScom Functional Description ............. 3-1 IPScom Main Screen Menu Bar ............3-1 Shortcut Command Buttons ..............3-1 IPScom Main Screen Status Line ............3-1 File Menu ....................3-4 File/New Command ................3-4 File/Save and Save As Command ............3-4 File/Open Command ................
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M‑3311A Instruction Book Chapter 4 System Setup and Setpoints Unit Setup ..................... 4-1 General Unit Setup................4-1 Comm Access Code ................4-1 IPScom Comm Access Code Setup ............ 4-2 ® HMI Comm Access Code Setup ............4-2 IPScom User Access Code Setup ............4-3 HMI User Access Codes Setup ............
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M‑3311A Instruction Book Chapter 4 System Setup and Setpoints (Cont’d.) System Setpoints ................4-49 Setpoint Profiles (Setting Groups) ............4-49 Configure Relay Data ................4-49 Functions .................... 4-49 Special Considerations ............... 4-50 24 Volts/Hz Overexcitation ..............4-51 27 Phase Undervoltage ..............4-55 4 Winding ....................
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M‑3311A Instruction Book Chapter 6 Testing Equipment and Test Setup ..............6-2 Required Equipment ................6-2 Equipment Setup .................. 6-2 Diagnostic Test Procedures ..............6-3 Output Test (Relay) ................6-3 Input Test (Status) ................. 6-4 Status LED Test ..................6-5 Target LED Test ..................
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M‑3311A Instruction Book Appendix A Configuration Record Forms System Communication Setup .............. A-4 Setup System – Two or Three Windings ..........A-5 Setup System – Four Windings ............. A-8 System Setpoints and Settings ............A-11 Appendix B Communications DNP Configuration Parameters ............. B-1 M-3311 Slave Address ................
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Typical 4 Winding M-3911A Target Module........... 1-4 M-3931 Human-Machine Interface (HMI) Module ......... 1-4 Chapter 2 Operation M-3311A Front Panel ................... 2-3 Screen Message Menu Flow ................ 2-4 Main HMI Menu Flow ................... 2-5 Primary Metering & Status Screen (2/3 Winding) ......... 2-7 Primary Metering &...
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M‑3311A Instruction Book Figures Page Chapter 3 IPScom (Cont’d.) ® IPScom Modem Communication Dialog Screen ........... 3-6 Terminal Window ..................3-6 Primary Metering Status Screen (2/3 Winding) ..........3-7 3-10 Primary Metering Status Screen (4 Winding) ..........3-8 3-12 Secondary Metering Status Screen (2/3 Winding)........3-9 3-12 Secondary Metering Status Screen (4 Winding) .........3-10...
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IPScom Selection Screen for Output Settings ..........4-38 4-18 IPScom Selection Screen for Input Settings ..........4-39 4-19 M-3311A (Two Winding-Two or Four Voltage Inputs) Typical One-Line Function Diagram ............4-40 4-20 M-3311A (Three Winding-Two or Four Voltage Inputs) Typical One-Line Function Diagram ............4-41...
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Installation M-3311A Horizontal Chassis Mounting Dimensions Without Expanded I/O (H1) ................5-2 M-3311A Mounting Dimensions – Horizontal Chassis With Expanded I/O (H5 and H6) ..............5-3 Panel Mount Cutout Dimensions ..............5-4 Vertical Chassis Mounting Dimensions Without Expanded I/O (H2) ..... 5-5 Mounting Dimensions for GE L-2 Cabinet (H3 and H4) .......
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Typical (Three Winding – Four Voltage Inputs) Three-Line Connection Diagram..............5-32 5-33 Typical (Four Winding – Two Voltage Inputs) Three-Line Connection Diagram..............5-33 5-34 M-3311A Circuit Board Standard I/O ............5-38 5-35 M-3311A Circuit Board Expanded I/O ............5-39 5-36 IPScom Program Icon .................5-40 xiii...
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Setup System (Four Windings) (page 1 of 3) ..........A-8 System Setpoints and Settings (page 1 of 38) ........... A-11 Appendix B Communication Null Modem Cable for M-3311A ..............B-3 RS-232 Fiber Optic Network ................ B-4 RS-485 Network ................... B-5 Appendix D Inverse Time Curves Volts/Hz (24IT) Inverse Curve Family #1 (Inverse Square) ......
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Relay Communication Menu Flow (Page 1 of 2) ........F-22 F-14 Relay Setup Menu Flow (Page 1 of 4) ............F-24 Tables Page Chapter 1 Introduction M-3311A Device Functions ................1-2 Chapter 2 Operation 4 Winding Recorder Partitions ..............2-18 2/3 Winding Recorder Partitions ..............2-19 Chapter 3 IPScom ®...
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M‑3311A Instruction Book Tables Page Chapter 4 System Setup and Setpoints (Cont’d.) 4‑5 Transformer Connections ................4‑97 4‑6 Standard Transformer and CT Configuration Options ........4‑98 4‑7 Custom Transformer and CT Configuration ..........4‑99 Chapter 5 Installation 5‑1 Circuit Board Jumpers .................5‑36 5‑2 Circuit Board Switches ................5‑36...
It describes the procedures for entering Chapter 1: Introduction all required data into the M-3311A. Included in this Chapter One summarizes the devices’ capabilities, chapter are functional and connection diagrams for introduces the instruction book contents and a typical application for the system;...
IEEE inverse time curves. The M-3931 Human Machine Interface (HMI) Module allows the user to access the following features and functions from the M-3311A front panel using a menu- Appendix E: Layup and Storage driven, 2 line by 24 character alphanumeric display:...
Appendix B, Communications, as well as Chapter 3, IPScom ® The M-3311A retains up to 311 cycles of oscillograph waveform data assignable to up to 24 events with The system may be remotely set and interrogated selectable post-trigger delay.
M‑3311A Instruction Book S‑3300 IPScom Communications Software Accessories Each M-3311A unit includes the S-3300 IPScom Communications Software. The IPScom M‑3911A Target Module communications software runs on an IBM PC The optional target modules shown in Figures 1-1 compatible computer running under Windows 2000...
The M-0423 cable is a 10-foot null-modem RS-232 Protection Relay. cable for direct connection between a PC and the M-3311A front panel COM1 port, or the rear COM2 M‑3933/M‑0423 Serial Communications Cable port. This cable includes a DB9 (9-pin) connector at The M-3933 cable is a 10-foot straight-through each end.
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Front Panel Controls and Indicators ........2–1 Operation (HMI/PC) ..............2–4 This chapter contains information that describes the • Oscillograph Recorder operation of the M-3311A Transformer Protection View Recorder Status Relay. See Chapter 4 for System Setup, Configuration Retrieve Records and Setpoint information.
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Any changed setpoint in the displayed screen will not be saved if This section describes the operation of the M-3311A the selection is aborted using the EXIT pushbutton. as a function of the M-3931 Human Machine Interface Module (HMI) and the M-3911A Target Module.
Detailed information about the cause of the last 8 through the alphanumeric display from the VIEW operations is retained in the unit’s memory for access TARGET HISTORY menu. through the alphanumeric display from the VIEW TARGET HISTORY menu. Figure 2‑1 M‑3311A Front Panel 2–3...
Whenever power is applied to the unit the Power On Self Test sequence is initiated (Figure 2-2). The purpose of this section is to describe the steps that are necessary to interrogate the M-3311A utilizing Default Message Screens either the optional M-3931 HMI or a PC running ®...
M‑3311A Instruction Book Level 3 Access: provides access to all M-3311A To access the STATUS menu and begin monitoring, proceed as follows: configuration functions and settings. Press the ENTER pushbutton. Level 2 Access: provides access to read & change setpoints, monitor status and view target history.
Operation – 2 Status Monitoring (From IPScom) • Zero Sequence Current (W1 — W4) PRIMARY METERING AND STATUS • Differential Current (PU), (Phase A/B/C) To access the PRIMARY METERING AND STATUS • Restraint Current (PU), (Phase A/B/C) ® , select Monitor/Primary parameters utilizing IPScom •...
Operation – 2 SECONDARY METERING AND STATUS • Negative Sequence Current (W1 — W4) To access the SECONDARY METERING AND • Zero Sequence Current (W1 — W4) ® STATUS parameters utilizing IPScom , select • Differential Current (PU), (Phase A/B/C) Monitor/Secondary Metering and Status from the •...
Operation – 2 METERING II Also included on the Metering II screen are: To access the METERING II parameters utilizing NOTE: These parameters are described in their ® , select Monitor/Metering II from the IPScom respective sections of this chapter. IPScom Main Screen drop down menu.
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M‑3311A Instruction Book Path: Monitor / Metering ll Figure 2‑9 Metering II Screen (4 Winding) 2–12...
Operation – 2 Demand Status If Level Access is not Active, then the following will be displayed: Monitored Primary Demand values include: VOLTAGE RELAY • Winding 1, 2, 3, & 4 Phase Currents VOLT curr freq v/hz • Winding 2, 3, and 4 Ground Current Press the Right arrow pushbutton until Maximum Demand Current the following is displayed:...
M‑3311A Instruction Book If you are already in the DEMAND LEVEL #(1,2 or 3) STATUS menu, then go to Step 5. Access Granted! If Level Access is not Active, then the following will be displayed: VOLTAGE RELAY VOLTAGE RELAY VOLT curr freq...
Operation – 2 Demand Status (From IPScom) The Demand Status dialog screen also includes the capability to reset individual or reset all Max Demand Demand Currents Status values. To display Demand Currents select Monitor/ ® Metering II. IPScom will display the Metering II VIEW TARGET HISTORY screen (Figures 2-8 or 2-9).
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M‑3311A Instruction Book b. If the proper Access Code has been a. Input the required Access Code, then press ENTER. entered, the HMI will return: b. If the proper Access Code has been LEVEL #(1,2 or 3) entered, the HMI will return:...
Operation – 2 View Target History (From IPScom) The View Targets screen also includes the ability to Save the target information to file and Print the View Targets target information. To View Targets select Relay/Targets/View. ® IPScom will display the View Targets screen (Figure Clear Targets 2-11).
M‑3311A Instruction Book ® Select Yes. IPScom • Post-Trigger Delay: A post-trigger delay will display the Clear Targets dialog screen (Figure 2-13). of 5% to 95% must be specified. After triggering, the recorder will continue to store data for the programmed portion of the total record before re-arming for the next record.
M‑3311A Instruction Book To access the Oscillograph Recorder VIEW To exit press the EXIT pushbutton. The RECORDER STATUS feature, proceed as follows: display will return to the following: VIEW RECORDER STATUS Press the ENTER pushbutton. STAT clear setup If Level Access is active, the following is...
Operation – 2 Press the ENTER pushbutton, the follow- ing will be displayed: CLEAR RECORDS -RECORDS CLEARED- To exit press the EXIT pushbutton. The display will return to the following: Figure 2‑15 Oscillograph Record Download VIEW RECORDER STATUS Dialog Screen stat CLEAR setup...
M‑3311A Instruction Book Trigger Oscillograph Clear Oscillograph Records To manually Trigger the Oscillograph perform the To Clear Oscillograph Records perform the following: following: Select Relay/Oscillograph/Clear. Select Relay/Oscillograph/Trigger. I P S c o m w i l l d i s p l ay t h e C l e a r ®...
Operation – 2 Software Version (Relay Front Panel only) Serial Number (Relay Front Panel only) To determine the software version installed on the To determine the serial number of the relay, proceed relay, proceed as follows: as follows: Press the ENTER pushbutton. Press the ENTER pushbutton.
M‑3311A Instruction Book Alter Access Codes (From Relay Front Panel) Input the desired User Access Code as follows: Press the ENTER pushbutton. a. Utilizing the Up and Down arrow If Level Access is active, the following is pushbuttons select the desired first displayed: digit.
Operation – 2 Alter User Access Codes (From IPScom) Comm Access Codes To set the relay Comm Access Code perform the following: NOTE: Communication must be established with the target relay for this procedure. ® From the IPScom Main Screen menu Figure 2-23 Access Code Changed Confirmation select Tools/Security/Change Comm Access Code.
M‑3311A Instruction Book User Access Codes System Error Codes, Output and Alarm Counters To change the relay User Access Codes perform The System Error Codes, Output and Alarm Coun- the following: ters feature provides the user with the ability to view and clear system Error Codes, Processor Resets, ...
Operation – 2 Press ENTER, the following will be dis- Press the Right arrow pushbutton until the following is displayed: played: CLEAR OUTPUT COUNTER SOFTWARE VERSION logo1 logo2 OUT alrm VERS sn access number Press ENTER, the following will be dis- Press the Right arrow pushbutton until played: the following is displayed:...
M‑3311A Instruction Book Press the Right arrow pushbutton until Press ENTER, the following will be dis- the following is displayed: played: SETUP UNIT CLEAR ERROR CODES SETUP -ERROR CODES CLEARED- Press ENTER, the following will be dis- Press EXIT as necessary to return to the played: main menu.
Operation – 2 Through Fault Recorder (From IPScom) Relay/Through Fault/View Relay/Through Fault/Retrieve To view available Through Fault records perform the following: To download available Through Fault records perform the following: From the IPScom Main Screen menu select Relay/Through Fault/View. ® From the IPScom Main Screen menu IPScom will display the View Through...
M‑3311A Instruction Book Relay/Through Fault/Clear Relay/Sequence of Events/Retrieve The Retrieve selection downloads the events from To Clear the relay Through Fault records perform the following: the currently connected relay (events must be retrieved from the relay and stored in a file in order ®...
Operation – 2 Relay/Sequence of Events/View To Clear all Sequence of Events Records perform the following: The Sequence of Events viewer screen includes the commands Open, Close, Print Summary, and From the IPScom Main Screen menu Print. Open opens a saved sequence of events file. select Relay/Sequence of Events/Clear.
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Connect and Help menu selections. This menu bar system settings and operational commands to includes the additional selections; Communication, the M‑3311A as well as access the extensive Monitor, System, Tools and Windows when monitoring and status reporting features. Figure IPScom is in either the file mode or has open 3‑3, represents the IPScom Main Screen menu...
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M‑3311A Instruction Book Figure 3-2 IPScom Main Screen 3–2...
IPScom – 3 ® File Windows Cascade Unconnected Tile Vertical Monitor Help Connected Tile Horizontal Contents Primary Metering & Status Ctrl + F1 Open About... Secondary Metering & Status Save Open Metering II Save as Phasor Diagram Compare Phasor Diagram (87T) Close All Setpoints Pickup/Timeout Status...
Closes the open file without saving. File/New Command File/Exit Command When not connected to a M‑3311A, using the New The Exit command quits the IPScom program. command, a new file is established with the New System dialog screen (Figure 3‑4). Selecting Save allows the new data file to be named by using the Save or Save as...
IPScom – 3 ® Connect\Communication Menu Selecting “TCP/IP” displays the PC TCP/IP and device Settings (Figure 3‑6) for Ethernet communication. Selecting “Modem” displays a modem Dialog screen (Figure 3‑7), to establish contact with remote locations. The Modem Dialog screen also includes a “Bring up terminal window after dialing”...
IPScom – 3 ® Monitor Menu • Frequency (Hz) The Monitor Menu provides access to the screens • Volts Per Hertz (%) used to monitor relay parameters. Seven submenus • Current (W1 — W4) are provided: Primary Metering and Status, •...
IPScom – 3 ® Monitor/Secondary Metering & Status • Differential Current (PU), (Phase A/B/C) The Secondary Metering and Status screen • Restraint Current (PU), (Phase A/B/C) (Figures 3‑11 and 3‑12) allow the user to review • Ground Differential Current (W2 — W4) the following SECONDARY parameters: •...
IPScom – 3 ® Monitor/Metering II • Demand Ground Currents, Winding 2, 3, & 4 The Metering II screen (Figures 3‑13 and 3‑14) include the following parameters: • Cumulative Through Currents (kA Cycles) • Through Fault Counter • 2 and 5 Harmonic Differential Currents (PU), (Phase A/B/C) Demand Status...
IPScom – 3 ® Monitor/Phasor Diagram The Phasor Diagram (Figures 3‑15 and 3‑16) provide the user with the ability to evaluate a reference Phase Angle to Phase Angle data from other windings. The Phasor Diagram also includes a menu that allows the user to select/deselect sources to be displayed and Freeze capability to freeze the data displayed on the Phasor Diagram.
M‑3311A Instruction Book Path: Monitor / Phasor Diagram NOTE: When connections specifying delta-connected CTs are used, Functions 87T and 87H use the Phasor Diagram values (currents actually entering the relay) and not the calculated values dis‑ played on the Secondary Metering and status screen.
IPScom – 3 ® Monitor/Phasor Diagram (F87T) The Phasor Diagram (F87T) (Figures 3‑17 and 3‑18) provide the user with the ability to evaluate compensated and uncompensated 87 Function parameters. Path: Monitor / Phasor Diagram (F87T) Figure 3-17 Phasor Diagram (F87T) (2/3 Winding) 3–15...
IPScom – 3 ® Monitor/Pickup/Timeout Status The Pickup/Timeout Status screen (Figures 3‑19 and 3‑20) display the extended status information of relay functions and Input/Output contact information. Path: Monitor / Pickup/Timeout Status Figure 3-19 Pickup/Timeout Status (2/3 Winding) Path: Monitor / Pickup/Timeout Status Figure 3-20 Pickup/Timeout Status (4 Winding) 3–17...
M‑3311A Instruction Book Monitor/87T Dual Slope The 87T Dual Slope display allows the user to display a graphical representation of the 87T programmable Dual Slope Percentage Restraint Characteristic. See Section 4.4, System Setpoints for detailed information. Path: Monitor / 87TDual Slope Figure 3-21 87T Function Dual Slope Display 3–18...
IPScom – 3 ® Relay Menu Relay/Setup/Setup System The Setup System selection displays the Setup System dialog screen (Figures 3‑22 and 3‑23) allowing the user to input the pertinent information regarding the system on which the relay is applied (see Section 4.2, Setup System, for detailed information regarding the specific elements of the Setup System dialog screen).
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M‑3311A Instruction Book Figure 3-22 Setup System Dialog Screen (2/3 Winding) 3–20...
M‑3311A Instruction Book Relay/Setup/Relay Setpoints The Relay Setpoints menu selection displays the Relay Setpoints dialog screen (Figures 3‑24 and 3‑25) from which the individual Function Setting dialog screens can be accessed. Selecting a Function Setting button will display the corresponding function dialog screen (See Figure 3‑26 as an example).
IPScom – 3 ® Figure 3-26 Example Function Dialog Screen COMMAND BUTTONS Save When connected to a relay, sends the currently displayed information to the unit. Otherwise, saves the currently displayed information and returns to the System Setpoints screen or All Setpoints Table. Cancel Returns to the System Setpoints screen or All Setpoints Table;...
M‑3311A Instruction Book Relay/Setup/Display/I/O Map Both the Relay Setpoints dialog screen and the I/O Map screen include the Display All Setpoints Selecting the I/O Map button displays the I/O feature and Jump Command Buttons which allow Map dialog screen (Figures 3‑28 and 3‑29), which...
M‑3311A Instruction Book Relay/Setup/Display All Setpoints The individual Feature and Function selection buttons are described in the applicable sections. Selecting the Display All Setpoints button displays the All Setpoints dialog screen (Figures 3‑30 and The All Setpoint Table includes Jump Command 3‑31).
M‑3311A Instruction Book Relay/Demand Status The Demand Status feature allows the user to access Primary Demand Values. See Chapter 2, Operation for detailed information. Figure 3-32 Demand Status Dialog Screen (2/3 Winding) Figure 3-33 Demand Status Dialog Screen (4 Winding)
IPScom – 3 ® Relay/Targets The Targets submenu provides three command options: View, Clear and Reset LED. The View command displays the View Targets Dialog Screen (see Figure 3‑34). This dialog screen provides detailed data on target events including time, date, function status, phase current values, and IN/ OUT contact status at the time of trip.
M‑3311A Instruction Book Relay/Through Fault The Through Fault submenu provides three command options: Retrieve, View and Clear. The Retrieve command initiates the retrieval of any Through Faults present in the relay. The View command displays the View Through Fault Record dialog screen (Figure 3‑35).
IPScom – 3 ® Relay/Sequence of Events The Sequence of Events submenu allows the user to Setup, Retrieve, View and Clear Sequence of Events records. The Setup command displays the Setup Sequence of Events Recorder dialog screen (Figure 3‑36). Function Pickup, Trip and Dropout can be selected to initiate the recorder as well as Input Pickup, Output Pickup, Inputs Drop and Outputs Drop.
IPScom – 3 ® Relay/Oscillograph The Oscillograph submenu allows setting and control over the relay’s oscillograph recorder. The Setup command allows the user to set the number of partitions and triggering designations to be made (Figure 3‑39 and 3‑40), Retrieve downloads and save data to a file (Figure 3‑41).
M‑3311A Instruction Book Relay/Profile The Profile submenu provides three command options: Switching Method, Select Profile, and Copy Active Profile. The Switching Method command allows selection of either Manual or Input contact (Figure 3‑42). Select Profile allows the user to designate the active profile (Figure 3‑43).
IPScom – 3 ® Relay/Write File to Relay Tools/Security The Security menu item includes the Change Comm Access and Change User Access code submenus. Tools/Security/ Change Comm Access Code The Change Comm Access code selection displays the Change Comm Access Code screen (Figure 3‑45) which allows the user to change the Comm Access Code.
M‑3311A Instruction Book Tools/Security/Change User Access Code The Change User Access Code selection displays the Access Level Code dialog screen (Figure 3‑46). After entering a valid Level 3 Access Code IPScom ® will display Figure 3‑47 which allows the user to change the relay User Access Code.
IPScom – 3 ® User Control Number The User Control Number is a user‑defined value which can be used for inventory or identification. The unit does not use this value, but it can be accessed through the HMI or the communications interface, and can be read remotely.
Tools/Calibration Data The Calibration Data feature allows the user to The Help menu provides two commands. The retrieve calibration data from M‑3311A relays. It Contents command initiates a link to a PDF also allows relay calibration data to be restored to (Portable Document File) version of this instruction the relay.
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M‑3311A Instruction Book This Page Left Intentionally Blank 3–40...
If additional link security is desired, a communica- tion access code can be programmed. Like the user The selection of the M-3311A System Setup param- access codes, if the communication access code eters and Setpoints can be performed using either...
M‑3311A Instruction Book IPScom Comm Access Code Setup To set the relay Comm Access Code perform the following: NOTE: Communication must be established with the target relay for this procedure. From the IPScom Main Screen menu Figure 4-3 Access Code Changed Confirmation select Tools/Security/Change Comm Access Code.
System Setup and Setpoints – 4 Press ENTER, the following will be dis- Each access code is a user-defined one-to-four played: digit number. Access codes can only be altered by a Level 3 user. COM1 SETUP COM1 com2 com3 com_adr If the Level 3 Access Code is set to 9999, the access code feature is disabled.
M‑3311A Instruction Book HMI User Access Codes Setup Input the desired User Access Code as follows: Press the ENTER pushbutton. Utilizing the Up and Down arrow push- If Level Access is active, the following is buttons select the desired first digit.
System Setup and Setpoints – 4 USER LOGO LINE HMI User Logo Line Setup Press the ENTER pushbutton. The user logo is a programmable, two-line by 24-char- acter string, which can be used to identify the relay, If Level Access is active, the following is and which is displayed locally when the unit is idle.
M‑3311A Instruction Book Input the desired User Logo Line 1 as HMI User Control Number Setup follows: Press the ENTER pushbutton. Utilizing the Up and Down arrow push- If Level Access is active, the following is buttons select the desired first letter/ displayed: symbol/digit/blank space.
System Setup and Setpoints – 4 Input the desired User Control Number ▲ CAUTION: Do not enter DIAGNOSTIC MODE as follows: when protected equipment is in service. Entering DI- AGNOSTIC MODE when protected equipment is in Utilizing the Up and Down arrow push- service removes all protective functions of the relay.
M‑3311A Instruction Book Utilizing the Right or Left arrow pushbut- IPScom Set Date/Time tons select either ON or OFF. To set the relay Date/Time perform the following: NOTE: Communication must be established with Press ENTER, the following will be dis- the target relay for this procedure.
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System Setup and Setpoints – 4 Press the RIGHT arrow pushbutton until Press the Left arrow pushbutton once, the following is displayed: then repeat the previous step as neces- sary to input the desired date. SETUP UNIT When the desired Date has been input, stat comm SETUP then press ENTER.
IPScom will display the Setup Comm COM3 located on the rear terminal block of the Port dialog screen (Figure 4-7). M-3311A is an RS-485, 2-wire connection. Appendix The System COM Port that is in use will B, Figure B-3 illustrates a 2-wire RS-485 network.
System Setup and Setpoints – 4 Select the desired COM Port to be setup The individual addressing capability of (1, 2 or 3). IPScom and the relay allows multiple systems to share a direct or modem con- Enter the desired “Baud Rate” (1200 nection when connected through COM2 to 9600).
M‑3311A Instruction Book HMI COM Port Definitions and Device Address Input the desired Dead Sync Time as follows: Press the ENTER pushbutton. Utilizing the Up and Down arrow push- If Level Access is active, the following is buttons select the desired first digit.
System Setup and Setpoints – 4 ETHERNET COMMUNICATION SETTINGS IPScom Ethernet Port Setup with DHCP NOTE: Communication must be established with The optional RJ45 Ethernet port can be enabled the target relay for this procedure. utilizing either IPScom from the Ethernet Settings ®...
M‑3311A Instruction Book IPScom Ethernet Port Setup without DHCP Ensure that TCP is selected (Upper ® Case). NOTE: Communication must be established with the target relay for this procedure. If TCP is not selected (Upper Case), then use the Right/Left arrow pushbuttons to From the IPScom Main Screen menu select TCP.
System Setup and Setpoints – 4 If the ethernet board successfully obtains Enter the desired Gateway, then press ENTER, the following will be displayed: an IP Address the following will be dis- played for approximately 2 seconds: TCP/IP SETTINGS ETHERNET IP ADDRESS tcp prot XX.XX.XX.XX Ensure that PROT is selected (Upper...
M‑3311A Instruction Book INSTALLING THE MODEMS Connecting the PC Modem If the computer has an external modem, Using IPScom to interrogate, set or monitor the ® then use a standard straight-through relay using a modem requires both a remote modem...
System Setup and Setpoints – 4 IPScom will display the Modem Dialog NOTE: The relay does not issue or understand screen (Figure 4-10). any modem commands. It will not adjust the baud rate and should be considered Enter the required information in the a “dumb”...
M‑3311A Instruction Book OSCILLOGRAPH SETUP Number of Windings Windings Windings Partitions 1, 2, 3, 4 1, 2, 3 1, 2 The Oscillograph Recorder provides comprehen- sive data recording (voltage, current, and status input/output signals) for all monitored waveforms (at 16 samples per cycle). Oscillograph data can...
M‑3311A Instruction Book IPScom Setup Oscillograph Recorder Select the desired Trigger Inputs and Trigger Outputs. NOTE: Communication must be established with the target relay for this procedure. When The recorder can be triggered remotely not connected to the relay the Save se-...
System Setup and Setpoints – 4 HMI Setup Oscillograph Recorder Press ENTER, the following will be dis- played: Press the ENTER pushbutton. RECORDER PARTITIONS If Level Access is active, the following is displayed: ENTER ACCESS CODE Input the desired number of Recorder Partitions.
M‑3311A Instruction Book IPScom Setup Sequence of Events Recorder Input the required Access Code, then press ENTER. Protective function Pickup, Trip, Dropout and/or Out- put/Input Pickup or Dropout are selected to trigger If the proper Access Code has been the Sequence of Events Recorder.
M‑3311A Instruction Book Press the ENTER pushbutton, the fol- Utilizing the Right or Left arrow pushbut- ton select the target winding, then press lowing will be displayed: ENTER, the following is displayed: VOLTAGE RELAY THFLT DELAY VOLT curr freq v/hz...
System Setup and Setpoints – 4 Setup System NOTE: Table 4-4 assumes ACTIVE INPUT The Setup System consists of defining common STATE set to default setting (close circuit information like CT and VT ratios, nominal voltage = TRUE). rating, transformer connections, and which profile is the Active Profile, etc.
M‑3311A Instruction Book 2/3 Winding Setup (Cont.’d) ▲ CAUTION: Changing from a standard Transformer/CT XFM/CT CONNECTION connection to the equivalent custom setting may cause the standard custom relay to momentarily trip when current is present. If Custom XFM/CT Connection is DISABLED (standard...
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System Setup and Setpoints – 4 2/3 Winding Setup (Cont.’d) ▲ CAUTION: Changing from a standard Transformer/CT CT CONNECTION W1 connection to the equivalent custom setting may cause the CON_W1 xfm_w1 con_w2 xfm_w2 relay to momentarily trip when current is present. CT CONNECTION W1 ...
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M‑3311A Instruction Book 2/3 Winding Setup (Cont.’d) PHASE ROTATION Indicates the phase rotation. PHASE seal in vt PHASE ROTATION a-c-b A-B-C Seal-in time for output relays. Eight individual seal-in delays RELAY SEAL-IN TIME can be specified for each output relay (OUT1-OUT16 for ...
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System Setup and Setpoints – 4 2/3 Winding Setup (Cont.’d) VT Phase Ratio V.T.Phase RATIO VTP vtg volt curr V.T.Phase RATIO _________________ :1 V.T.Gnd/Phase RATIO VT Ground/Phase Ratio vtp VTG volt curr V.T.Gnd/Phase RATIO _________________ :1 The secondary VT voltage when primary voltage is equal NOMINAL VOLTAGE to the rated transformer voltage (V trans rated/VT ratio).
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M‑3311A Instruction Book 2/3 Winding Setup (Cont.’d) CT Ground Ratios W2 C.T. GROUND RATIO ct_w1 ct_w2 CT_W2G The relay will calculate the W2 and W3 line currents when a delta CT configuration is selected, as follows: W2 C.T. GROUND RATIO...
System Setup and Setpoints – 4 4 Winding Setup If INPUT ACTIVATED PROFILES is disabled this screen INPUT ACTIVATED PROFILES allows manual selection of the Active Profile using the disable ENABLE front panel or through communications. ACTIVE SETPOINT PROFILE Allows the user to manually select the Active Profile. This screen initiates a copy of the Active Profile to any COPY ACTIVE PROFILE one of the other profiles.
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M‑3311A Instruction Book 4 Winding Setup (Cont.’d) ▲ CAUTION: Changing from a standard Transformer/CT CUSTOM XFM/CT CONNECTION connection to the equivalent custom setting may cause the disable enable relay to momentarily trip when current is present. If Custom XFM/CT Connection is DISABLED (standard...
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System Setup and Setpoints – 4 4 Winding Setup (Cont.’d) ▲ CAUTION: Changing from a standard Transformer/CT CT CONNECTION W1 connection to the equivalent custom setting may cause the C O N _ W 1 xfm_w1 con_w2 xfm_w2 relay to momentarily trip when current is present.
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M‑3311A Instruction Book 4 Winding Setup (Cont.’d) PHASE ROTATION Indicates the phase rotation. PHASE seal in vt PHASE ROTATION a-c-b A-B-C Seal-in time for output relays. Eight individual seal-in RELAY SEAL-IN TIME delays can be specified for each output relay (OUT1- ...
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System Setup and Setpoints – 4 4 Winding Setup (Cont.’d) VT Ratio V.T.x RATIO VTX vtg ct_w1 ct_w2 V.T.x RATIO _________________ :1 V.T.g RATIO VT Ground Ratio vtx VTG ct_w1 ct_w2 V.T.g RATIO _________________ :1 CT Ratios W1 C.T. RATIO vtx vtg CT_W1 ct_w2...
M‑3311A Instruction Book If neither Pulsed or Latched Output is enabled, the output contact will default to the normal mode. In this mode, the output contact will stay energized as long as the abnormal condition which caused it to operate persists. After the abnormal condition is cleared, the contact will reset after the programmed seal-in time has elapsed.
Winding 2 Events (W2) Waveform Capture IRIG-B Front RS232 Communication Rear RS-232/485 Communication Multiple Setting Groups Programmable I/O Programmable Logic Self Diagnostics Dual Power Supply (Optional) Figure 4-19 M-3311A (Two Winding-Two or Four Voltage Inputs) Typical One-Line Function Diagram 4–40...
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Note: All 50 and 50G functions may be applied instantaneous or definite time, and are multiple (2) ele- ments, each with individual pickup and time delay setpoints. Figure 4‑20 M‑3311A (Three Winding‑Two or Four Voltage Inputs) Typical One‑Line Function Diagram...
All 50 and 50G functions may be applied instantaneous or definite time, and are multiple (2) elements, each with individual pickup and time delay setpoints. Two voltage inputs are available in the 4-winding model of the M-3311A. These are a phase voltage V...
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All 50 and 50G functions may be applied instantaneous or definite time, and are multiple (2) elements, each with individual pickup and time delay setpoints. Two voltage inputs are available in the 4-winding model of the M-3311A. These are a phase voltage V...
M‑3311A Instruction Book M-3311A Output Contacts M-3311A (W-1) Self- OUT 2 OUT 1 Typical Typical Test Self- Power OK Trip Test Status Alarm Alarm Alarm Trip M-3311A Input Contacts IN 1 IN 2 IN 3 Winding 1 (52b) Typical Typical...
OUT 1 Typical Typical Test M-3311A (W-1) Self- Power OK Trip Test Status Alarm Alarm Alarm Trip M-3311A Input Contac ts IN 1 IN 2 IN 3 (52b) Typical Typical Return Other Other Inputs Inputs Winding 1 (W-1) Two VT Open-Delta Connections...
M‑3311A Instruction Book M-3311A Output Contacts Self- OUT 2 OUT 1 Test Typical Typical M-3311A (W-1) Self- Power OK Trip Test Status Alarm Alarm Alarm Trip M-3311A Input Contacts IN 1 IN 2 IN 3 (52b) Typical Typical Return Other...
Alternate VT connections (see Instruction Book Chapter 5) Status Inputs and Relay Output are designated. Extra Outputs ma y be designated for control/supervisory operation. M-3311A Two VT Open-Delta Connections M-3311A Input Contac ts IN 1 IN 2 IN 3 (52b) Typical Typical Return...
M‑3311A Instruction Book M-3311A (W-4) M-3311A (W-1) M-3311A Output Contacts M-3311A Input Contacts IN 1 IN 2 IN 3 (52b) Typical Typical Return Self- OUT 2 OUT 1 Typical Typical Test Other Other Inputs Inputs Self- Power OK Trip Test...
System Setup and Setpoints – 4 Configure Relay Data System Setpoints The relay is shipped with a certain group of standard functions, including other optional functions, as Setpoint Profiles (Setting Groups) purchased. Both of these groups define a configurable Up to four setpoint profiles may be used. Each set of functions.
M‑3311A Instruction Book Special Considerations The following functions can be configured using enable/disable output, and status input blocking Status input IN1 is pre-assigned to be the 52b designations: breaker contact. IN5 and IN6 may be used to se- lect setpoint profiles (with input activated profiles + 24 Volts/Hz Overexcitation: Definite Time enabled).
NOTE: Two or four voltage inputs are available • Full Load V/Hz = 1.05 PU (HV terminals) for the M-3311A. The Voltage Input can • No Load V/Hz = 1.10 PU (HV terminals) be a phase voltage input or voltage generated from a broken delta VT con- nection.
M‑3311A Instruction Book 1000 Generator Limit Curve Transformer Limit Curve on Generator Base Inverse Square Curve K = 5 Combined Protection Curve Definite Time Delay Definite Time Pickup Inverse Time Pickup 0.01 Percentage Volts/Hz Figure 4-28 Example of V/Hz Capability and Protection Curves...
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System Setup and Setpoints – 4 24DT#1 PICKUP Definite time setpoint #1 establishes the V/Hz level above which 110% the protection operating time will be fixed at the definite time delay #1 (See Figure 4-28). 100% is equal to nominal voltage at nominal frequency (50/60Hz).
M‑3311A Instruction Book Figure 4-29 IPScom (24) Volts/Hertz Setpoint Ranges ® Path: Relay/Setup/Relay Setpoints/24 Volts/HZ Overexcitation COMMAND BUTTONS Save Saves all information to the relay. Cancel Returns the user to the previous window; any changes to the displayed information are lost.
The 27 Undervoltage function may be used to detect any condition causing long term undervoltage NOTE: Two or four voltage inputs are available for the M-3311A. The Voltage Input can This function is used to shed the transformer load be a phase voltage input or voltage...
M‑3311A Instruction Book NOTE: Elements #2 and #3 are not available in Four Winding applications. Figure 4-30 IPScom (27) Undervoltage Setpoint Ranges (2/3 Winding) ® Figure 4-31 IPScom (27) Undervoltage Setpoint Ranges (4 Winding) Path: Relay/Setup/Relay Setpoints/27 Phase Undervoltage...
System Setup and Setpoints – 4 46 Negative Sequence Overcurrent The inverse time function can be selected as one of the eleven curve families: definite, inverse, very The 46 Negative Sequence Overcurrent function inverse, extremely inverse, and four IEC curves and provides protection against possible damage due three IEEE curves.
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M‑3311A Instruction Book NOTE: Winding Four is not available in Two or Three Winding applications. Figure 4-32 IPScom (46) Negative Sequence Overcurrent Setpoint Ranges ® Path: Relay/Setup/Relay Setpoints/46 Negative Sequence Overcurrent COMMAND BUTTONS Save Saves all information to the relay.
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System Setup and Setpoints – 4 49 TIME CONSTANT Selects the time constant, ‘τ’ 5.0 Min 49 MAX OVERLOAD CURRENT Selects the maximum allowed continuous overload current. 2.00 Amps Select the winding current to be used as the input. 49 CURRENT SELECTION sum1 sum2 w1 w2 w3 w4 ...
50BF‑Residual Element 50BF‑Phase Breaker Failure This overcurrent relay is energized from the residual When the M-3311A Transformer Protection Relay current, see Figures 4-19 through 4-22, One-Line detects an internal transformer fault or an abnormal Functional Diagrams. This function is internally...
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System Setup and Setpoints – 4 50BFW1 PICKUP RESIDUAL Sets 50BFW1 residual current pickup. 0.5A is a typical setting. 1.00 Amps This element operates on 3I Sets 50BFW1 phase current pickup. 0.3 A is a typical setting. 50BFW1 PICKUP PHASE 1.00 Amps Designates the control/status inputs which will initiate the breaker 50BFW1 INPUT INITIATE...
M‑3311A Instruction Book 50/50G Instantaneous Overcurrent, Phase & Ground NOTE: 50 Phase Instantaneous Overcurrent The Instantaneous phase 50 and Instantaneous Elements #7 and #8 are not available in Ground 50G overcurrent functions provide fast Two or Three Winding applications.
System Setup and Setpoints – 4 NOTE: Elements #7 and #8 are not available in Two or Three Winding applications. Figure 4-37 IPScom (50) Instantaneous Phase Overcurrent Setpoint Ranges ® Path: Relay/Setup/Relay Setpoints/50 Instantaneous Phase Overcurrent COMMAND BUTTONS Save Saves all information to the relay.
M‑3311A Instruction Book 50N Instantaneous Residual Overcurrent The Instantaneous Residual (50N) overcurrent function provides fast tripping for high fault currents. Settings must be made in such a way as to prevent pickup for fault or conditions outside the immediate protective zone.
System Setup and Setpoints – 4 51 Inverse Time Phase Overcurrent dial within each family setting and tap setting is selected through the relay menu. The 51 Inverse Time Phase Overcurrent func- tion, one set per winding are used to trip circuits The curves available for use are shown in Appendix selectively and to time coordinate with up or down D, Inverse Time Curves, Figures D-5 through D-15.
M‑3311A Instruction Book 51N Inverse Time Residual Overcurrent The curves available for use are shown in Appendix D, Inverse Time Curves, Figures D-5 through D-15. The 51 Inverse Time Residual Overcurrent provides They cover a range from 1.5 to 20 times tap. For protection against ground faults.
System Setup and Setpoints – 4 51G Inverse Time Ground Overcurrent The curves available for use are shown in Appendix D, Inverse Time Curves, Figures D-5 through D-15. The 51G Inverse Time Ground Overcurrent func- They cover a range from 1.5 to 20 times the tap. tion is used to trip circuits selectively and to time For currents beyond 20 times the pickup setting, coordinate with up or downstream relays.
M‑3311A Instruction Book 59 Phase Overvoltage (2/3 Winding) The relay provides overvoltage protection func- tions with three voltage levels and three definite- The 59 Phase Overvoltage function may be used to time setpoints, any one or more of which can be provide overvoltage protection for the transformer.
VT. If voltage input NOTE: Two or Four voltage inputs are available is connected to broken delta VT, Functions 81O/U, for the M-3311A. The voltage input can 27, and 24 will be unavailable. be a phase voltage input or voltage...
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. Basically 59G becomes 59N. When V is selected, the operating quantity is the measured voltage at the terminals of the M‑3311A relay. NOTE: This setting is only functional with firmware version V02.03.01 and later. Figure 4‑45 IPScom (59G) Ground Overvoltage Setpoint Ranges (2/3 Winding) ®...
The NOTE: Two or Four voltage inputs are available Underfrequency function is typically used for load for the M-3311A. The Voltage Input can shedding applications. The frequency functions are be a phase voltage input or voltage...
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M‑3311A Instruction Book Figure 4-46 IPScom (81O/U) Over/Underfrequency Setpoint Ranges ® Path: Relay/Setup/Relay Setpoints/81 Over/Under Frequency COMMAND BUTTONS Save Saves all information to the relay. Cancel Returns the user to the previous window; any changes to the displayed information are lost.
System Setup and Setpoints – 4 87 Phase Differential 87H Phase Differential Unrestrained High Set Overcurrent The 87H Phase Differential Unrestrained High Set Overcurrent function is used to detect transformer internal winding faults with high currents. Unlike the 87T function, the 87H function is not blocked by harmonic restraint.
M‑3311A Instruction Book Figure 4-48 IPScom (87H) Phase Differential Current Setpoint Ranges ® Path: Relay/Setup/Relay Setpoints/87 Phase Differential Current COMMAND BUTTONS Save Saves all information to the relay. Cancel Returns the user to the previous window; any changes to the displayed information are lost.
The over-excitation condition is detected by the inrush current is distinguishable from fault current by presence of Fifth Harmonic component as a per- harmonic components. The M-3311A Transformer centage of fundamental component of differential Protection Relay can be set to restrain if the level current above a set value.
M‑3311A Instruction Book F87T Dual Slope Slope 2 Differential Current (PU) Trip Restrain Minimum Pickup at Harmonic Restraint Slope 1 Break Break Point Point Minimum Pickup Restraint Current (PU) where = Σ a I a f + a f I...
System Setup and Setpoints – 4 Cross Phase Averaging 87T CT Tap Settings For W1, W2, W3 and W4 Cross phase averaging is used to average the MVA x 10 harmonics of all three phases to provide restraint 87 CT Tap S3 x kVL-L x CTR of phases which may not have enough harmonics.
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M‑3311A Instruction Book See previous pages for more information on these settings. 87T PICKUP 87T EVEN RESTRAINT 0.50 PU 87T SLOPE #1 87T 5TH RESTRAINT disable enable CROSS_AVG 87T SLOPE #2 87T 5TH RESTRAINT 87T SLOPE BREAKPOINT 87T PICKUP@5TH RESTRAINT 2.0 PU...
System Setup and Setpoints – 4 87GD Ground Differential The directional element is inoperative if the residual current (3I ) is approximately less than 140 mA NOTE: This function is not provided on Winding (approx., based on 5 A CT rating). For this case, One.
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M‑3311A Instruction Book NOTE: Winding Four is not available for Two or Three Winding applications. Figure 4-52 IPScom (87GD) Ground Differential Current Setpoint Ranges ® Path: Relay/Setup/Relay Setpoints/87GD Ground Differential current COMMAND BUTTONS Save Saves all information to the relay.
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When the Output Contact is closed, no current flows for other available trip circuit input voltage selections. in the Trip Circuit Monitoring Input. If the M-3311A has issued a trip command to close the Output This function should be programmed to block when...
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This selection allows the TCM #1 to be disabled (or enabled) independent When the Output Contact is closed, no current flows in the Trip Circuit Monitoring Input. If the M-3311A from the TCM #2. closes the Output Contact and Trip Circuit Monitor-...
Save/Cancel — The Save selection saves the the TCM function output. Function Dialog Screen settings either to an open file or to the target M-3311A. Cancel, returns the Dropout Time Delay — A Time Delay can be ap- user to the previous open screen.
“Y” coil will not drop When the M-3311A is not connected to the close out. Therefore, only one CCM, either a M-3311A or coil circuit, then the appropriate CCM alarm LED on...
System Setup and Setpoints – 4 M-3311A Close Circuit Monitoring Input Station Battery Output Other Contact Contacts Legend Anti-pump relay prevents reclosing on a sustained close command. A spring charge limit switch shown with breaker closing spring discharged. Close Coil Latch check switch, closed when latch is reset.
System Setup and Setpoints – 4 Breaker Monitoring contact. The accumulated value for each phase can be displayed as an actual value. The integration The Breaker Monitoring feature calculates an esti- starts after a set time delay from the initiate point mate of the per-phase wear on the breaker contacts to account for the time it takes for the breaker to by measuring and integrating the current or current...
M‑3311A Instruction Book Through Fault predict transformer failures facilitating corrective action. Recording the number and severity of The Through Fault Monitor feature of the relay Through Faults experienced by a transformer can provides the user with the means to capture time- aid in determining predictive maintenance practices.
System Setup and Setpoints – 4 IPSlogic Programming the IPSlogic can only be implemented through IPScom . IPSlogic cannot be programmed ® The relay provides six IPSlogic Functions. IPSlogic using the Human-Machine Interface (HMI). The six Functions can be used to allow external devices to IPSlogic Functions can be activated using the HMI, trip through the relay, providing additional target but with limited logic capability.
The connection for the external device to the input contacts is illustrated • Initiating inputs are IN2 or IN5 in Chapter 5, Figure 5-5, M-3311A External Con- nections, and Chapter 6, Table 6-2, Input Contacts. • Initiating output is OUT4 •...
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System Setup and Setpoints – 4 Settings and Logic Applicable when IPSlogic set with no intentional time delay and used as the Function(s) programmed using IPScom ® initiating input. The desired time delay for security considerations can be obtained in the IPSlogic There are four initiating input sources: Initiating Function time delay setting.
M‑3311A Instruction Book System Applications and Logic Schemes Bus Fault Protection Example Digital feeder and transformer protection logic can Function 50W2 #1 is programmed with the following be combined together to provide high-speed bus I/O settings: trip Output #2, time delay setting of 7 fault protection.
Backup for Digital feeder Relay Failure With no feeder alarms, the paralleled self-test alarm contacts will all be open, and the Negative The M-3311A Transformer Protection Relay can Sequence Overcurrent function blocked. When a provide backup for digital feeder relays (see Fig- feeder relay fails and its self-test contact closes, the ures 4-67 and 4-68).
M‑3311A Instruction Book Load Shedding Description Example In stations where there are two or more transform- The Function 50W2 #1 basic settings provide the ers (see Figure 4-69), usually there is a normally first load shedding step. The tie CB 52b contact open tie breaker on the secondary side.
OUT7 is wired to the Auto Disable input of coordination. The blocking contact can be wired to a Beckwith Electric M-2270B/M-2001C Tapchanger the Auto Disable input (Beckwith M-2270B/M-2001C control. This application requires no special logic.
, and I are the uncompen- Transformer Winding Selection sated currents entering/exiting winding “n” of the transformer. The M-3311A can be applied in either a two, three or four winding transformer differential application. • I CompW , etc. are the compensated...
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M‑3311A Instruction Book Table 4-5 Transformer Connections 4–102...
System Setup and Setpoints – 4 When the standard connection options are used, MagnitudeCT(W2) = ConnectCT (Delta-ab) the transformer and CT phase angle shifts are MagnitudeCT(W2) = 23 = 1/S3 combined and the ConnectType returns the correct combined phase angle shift. The MagnitudeCT will compensate for the S3 associated with delta con- ConnectType (W3) = ConnectXfm (Inverse Wye) + nected CT’s.
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M‑3311A Instruction Book Transformer Phase Compensation CT Phase/Magnitude Compensation Beckwith Beckwith Increment # Compensation Connection Increment # Compensation Connection 1 s 0 1 s 0 1 s 30 Delta-ac 1 s 30 1 s 60 1 s 60 1 s 90...
Since only relay terminals. Illustrations of the proper CT input Winding 2 and Winding 3 in the M-3311A have an connections marking are provided in the following 87GD the wye winding must be assigned to one of examples.
M‑3311A Instruction Book AUXILIARY TRANSFORMER EXAMPLE Winding Winding Type CT Type Line Current in Degrees s Phase Compensation To ref winding CCW Rotation Relay Phase Setting CT Compensation Phase Degrees Magnitude Combined Compensation 1 s 0 1 s 0 1 s 0...
M‑3311A Instruction Book GSU TRANSFORMER EXAMPLE Breaker and a half application Beckwith: Y/Delta-ac/Delta-ac IEC Description: Y d1 d1 REF Winding Figure 4-76 Custom Settings for Wye/Delta-ac/Delta-ac 4–110...
Recommended cutout when relay is not used as standard rack mount and is panel cut out mounted. 17.50 [44.45] 10.20 [25.91] 19.00 [48.26] NOTE: Dimensions in brackets are in centimeters. Figure 5‑4 M‑3311A Vertical Chassis Mounting Dimensions Without Expanded I/O (H2) 5–5...
Grounding Requirements CT circuits should be shorted prior to discon‑ necting CT wiring to the M‑3311A. Death or The M-3311A is designed to be mounted in an severe electrical shock may result. adequately grounded metal panel, using grounding techniques (metal-to-metal mounting) and hardware ▲...
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M‑3311A Instruction Book IRIG- B COM 2 RATED CURRENT 1A,NOM COM 2 5 A,NOM RS232 ETHERNET COM 3 RS485 IN 6 IN 5 IN 4 IN 3 IN 2 IN 1 ( 5 2 b ) WIND- ING 1 (W1)
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Installation – 5 IRIG- B COM 2 RATED CURRENT 1A,NOM COM 2 5 A,NOM RS232 ETHERNET COM 3 RS485 IN 6 IN 5 IN 4 IN 3 IN 2 IN 1 ( 5 2 b ) WIND- ING 1 (W1) RT N SEL F- TEST...
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M‑3311A Instruction Book IRIG- B COM 2 RATED CURRENT 1A,NOM COM 2 5A,NOM RS232 ETHERNET COM 3 RS485 IN 6 IN 5 IN 4 IN 3 IN 2 IN 1 ( 5 2 b ) WIND- ING 1 (W1) RT N...
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Installation – 5 IRIG- B COM 2 RATED CURRENT 1A,NOM COM 2 5 A,NOM RS232 ETHERNET WIND- ING 1 (W1) COM 3 RS485 IN 6 IN 5 IN 4 IN 3 IN 2 IN 1 ( 5 2 b ) WIND- ING 2 (W2)
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M‑3311A Instruction Book IRIG- B COM 2 RATED CURRENT 1A,NOM COM 2 5 A,NOM RS232 ETHERNET WIND- ING 1 (W1) COM 3 RS485 IN 6 IN 5 IN 4 IN 3 IN 2 IN 1 ( 5 2 b )
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Installation – 5 IRIG- B COM 2 RATED CURRENT 1A,NOM COM 2 5 A,NOM RS232 ETHERNET WIND- ING 1 (W1) COM 3 RS485 IN 6 IN 5 IN 4 IN 3 IN 2 IN 1 ( 5 2 b ) WIND- ING 2 (W2)
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M‑3311A Instruction Book IRIG- B COM 2 RATED CURRENT 1A,NOM COM 2 5 A,NOM RS232 Ø ETHERNET WIND- ING 1 (W1) COM 3 RS485 IN 6 IN 5 WIND- ING 4 IN 4 (W4) OR I IN 3 IN 2...
Installation – 5 M-3311A Output Contacts M-3311A (W-1) Self- OUT 2 OUT 1 Typical Typical Test Self- Power OK Trip Test Status Alarm Alarm Alarm Trip M-3311A Input Contacts IN 1 IN 2 IN 3 Winding 1 (52b) Typical Typical...
M‑3311A Instruction Book M-3311A Output Contacts Self- OUT 2 OUT 1 Typical Typical Test M-3311A (W-1) Self- Power OK Trip Test Status Alarm Alarm Alarm Trip M-3311A Input Contacts IN 1 IN 2 IN 3 (52b) Typical Typical Return Other...
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Installation – 5 M-3311A Output Contacts Self- OUT 2 OUT 1 Typical Typical Test M-3311A (W-1) Self- Power OK Trip Test Status Alarm Alarm Alarm Trip M-3311A Input Contacts IN 1 IN 2 IN 3 (52b) Typical Typical Return Other...
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M‑3311A Instruction Book M-3311A Output Contacts M-3311A (W-1) Self- OUT 2 OUT 1 Typical Typical Test Self- Power OK Trip Test Status Alarm Alarm Alarm Trip M-3311A NOTES: Broken Delta VTs Delta-Wye power transformer shown with Wye-Wye connedted CTs (Connected #4 DABY yy). Other M-3311A connections are possible.
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Installation – 5 M-3311A (W-4) M-3311A (W-1) M-3311A Output Contacts M-3311A Input Contacts IN 1 IN 2 IN 3 (52b) Typical Typical Return Self- OUT 2 OUT 1 Test Typical Typical Other Other Inputs Inputs Self- Power OK Trip Test...
Pre-Commissioning Checkout Winding 2 (I ). Compare these currents with the measured values During M-3311A Transformer Protection Relay field using a meter. If there is a discrepancy, commissioning, check the following procedure to check the CT connections to the rear ensure that the CT and VT connections are correct.
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Installation – 5 Press ENTER for the unit to display the 20. Press ENTER for the unit to display fundamental differential currents. The the positive sequence current for winding fundamental differential currents should 1. The positive sequence current should y0 for each phase. If a be I be I significant amount of differential current...
M‑3311A Instruction Book Circuit Board Switches and Jumpers Dip Jumper Position Description Connects CD signal to COM 2 Pin 1* Connects +15 V to COM 2 Pin 1 Connects -15 V to COM 2 Pin 9 Disconnects COM 2 Pin 9...
Installation – 5 Close Circuit Monitor 1 Input Voltage Select Input Jumper J4 Jumper J5 Jumper J6 Voltage Position Position Position 24 V dc A to B A to B A to B 48 V dc B to C A to B A to B 125 V dc B to C...
M‑3311A Instruction Book IPScom Communications and Activating Initial Local Analysis Software Installation Communications IPScom Installation and Setup The relay and IPScom Communications Software are shipped from the factory with the same default IPScom is available on CD-ROM, or may be down- communication parameters.
Figures 5-6 and 5-7. Press ENTER. The relay will display: When power is initially applied, the COM1 SETUP M-3311A performs a number of self- COM1 com2 com3 com_adr tests to ensure its proper operation. During the self-tests, an “X” is displayed for each test successfully executed.
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NOTE: System Setup settings are not consid- ered part of the setpoint profiles. Sys- tem Setup settings are common to all Install the M-3311A and connect external profiles. input and output contacts according to the rear panel terminal block markings...
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Testing – 6 Testing Equipment and Test Setup ............6–2 Diagnostic Test Procedures ............6–3 Automatic Calibration ...............6–9 Input Configurations ...............6–10 Protection Elements ...............6–16 Terminal Elements ..............6–18 Accuracy for Voltage Protection Functions ......6–20 Functional Test Procedures ............6–21 Power On Self Tests .............. 6–22 24DT Volts/Hz Overexcitation Definite Time (#1 or #2) ..6–23 24IT Volts/Hz Overexcitation Inverse Time ......6–24 27 Phase Undervoltage ............6–25...
M‑3311A Instruction Book Equipment and Test Setup Diagnostic Test Procedures No calibration is necessary, as the M-3311A The diagnostic procedures perform basic functional Transformer Protection Relay is calibrated and tests to verify the operation of the front panel indicators, fully tested at the factory. If calibration is necessary inputs, and outputs, and the communication ports.
Testing – 6 Output Test (Relay) ▲ CAUTION: Do not enter DIAGNOSTIC MODE when protected equipment is in service. Entering The first step in testing the operation of the function DIAGNOSTIC MODE when protected equipment outputs is to confirm the positions of the outputs in the is in service removes all protective functions of unoperated or OFF position.
M‑3311A Instruction Book For units equipped with an optional HMI panel: Input Return Input Number Terminal Number Following completion of testing, the output contacts, can be turned ON in the following manner: 1 (52b) Press ENTER. The following is displayed: RELAY NUMBER Press ENTER.
IPS LOGIC #4 IPS4 51,51N #2 INV OC IPS LOGIC #5 IPS5 51,51N #3 INV OC IPS LOGIC #6 IPS6 M-3311A OUTPUTS TRANSFORMER PROTECTION OUT 1 OUT 3 OUT 5 OUT 7 OUT 2 OUT 4 OUT 6 OUT 8 BECKW IT H CO.
M‑3311A Instruction Book Target LED Test (Cont.’d) Press and hold ENTER. The following is displayed: Press ENTER. Target LED #1, 24DT/IT BUTTON TEST OVEREXCITATION, illuminates and the ENTER following is displayed: Release ENTER. The following is TARGET LED TEST displayed:...
7 (RTS) connected to pin 8 (CTS). No other converter and terminal emulator soft- connections are necessary. ware installed. M-3311A The COM3 ECHO TEST 2 WIRE allows the user COM1/COM2 to test the RS-485 rear terminal connections for DB9P proper operation.
M‑3311A Instruction Book Set the following PC communications NOTE: If the unit is removed from service or parameters: is to be without power for long periods of time, the clock should be stopped to Baud Rate 9600 preserve battery life.
Testing – 6 Use the right arrow key to select “ON”, and press ENTER. The unit will display FLASH RELAY OK LED –DONE– Press EXIT to return to the former menu. Repeat step 2 and use the left arrow key to select “OFF”, and press ENTER.
Monitor Status/Metering in Chapter 3). For units without the optional M-3931 HMI: Figure 6-7 Voltage Calibration Configuration It is possible to autocalibrate M-3311A units that (4 Winding) are not equipped with the optional M-3931 HMI. The procedure is similar to HMI equipped units: Connect all current inputs in series (I Remove power from the unit.
Testing – 6 Input Configurations Phase angles shown here represent leading angles as positive and lagging angles as negative. Some test equipment manufacturers use lagging angles as positive, in which case I =s120° and I =s240°. Other current phase angles should be adjusted in the same manner. Current Voltage 120 VAC...
M‑3311A Instruction Book Current Current Input 1 Input 1 Current Current -120 Input 2 Input 2 Current Current Input 3 Input 3 Figure 6-16 Current Inputs, Configuration C4 Figure 6-17 Current Inputs, Configuration C5 (4 Winding) (4 Winding) Current Current...
M‑3311A Instruction Book Current Input 1 -120 Current Input 2 -120 Current Input 3 -120 Figure 6-20 Current Inputs, Configuration C8 (3 Winding) 6–14...
Testing – 6 Voltage Voltage Input Input Neutral Neutral Figure 6-21 Two Voltage Inputs, Configuration V5 (2 Winding) Voltage Voltage Input Input Neutral Neutral Figure 6-22 Two Voltage Inputs, Configuration V6 (3 Winding) Voltage Voltage Input Input Neutral Neutral Voltage Input Neutral Voltage...
M‑3311A Instruction Book Accuracy For Voltage Protection Functions 2/3 Winding Version 2/3 Winding Version 4 Winding Version Voltage Function Two Voltage Inputs Four Voltage Inputs Two Voltage Inputs Ø, Ø, 24DT Voltage source = V Voltage source = V Voltage source = V Ø...
Testing – 6 The tests are described in this section in ascending Functional Test Procedures function number order as in Chapter 4, System Setup and Setpoints. The functional tests procedures presented here During the lifetime of the relay, testing of individual are for the four winding version of the relay.
M‑3311A Instruction Book Power On Self Tests VOLTAGE INPUTS: None CURRENT INPUTS: None Apply proper power to the power input terminals: 60 (hot) and 61 (neutral) The unit will display: POWER ON SELFTESTS XXXXXXXXxxxxxxxxxxxxxxX All LEDs will illuminate simultaneously for approximately 1 second. The POWER and RELAY OK LEDs will remain illuminated;...
Testing – 6 24DT Volts/Hz Overexcitation Definite Time (#1 or #2) Relays with four voltage inputs use two positive-sequence voltages for 24DT#1 and #2. Refer to Table 6-11 for the accuracy when testing relays with four voltage inputs. VOLTAGE INPUTS: Configuration V1 CURRENT INPUTS: None...
M‑3311A Instruction Book 24IT Volts/Hz Overexcitation Inverse Time Relays with four voltage inputs use the positive-sequence voltages for 24IT. Refer to Table 6-11 for the accuracy when testing relays with four voltage inputs. VOLTAGE INPUTS: Configuration V1 CURRENT INPUTS: None...
Testing – 6 27 Phase Undervoltage VOLTAGE INPUTS: Configuration V1 CURRENT INPUTS: None TEST SETTINGS: Pickup Volts (5 to 140) Inhibit Setting Volts (5 to 140) Time Delay Cycles (1 to 8160) Programmed Outputs (1 to 8) Expanded I/O (9 to 16) Functions 24DT, 24IT Disable Function 81O/U...
M‑3311A Instruction Book 46DT Negative Sequence Overcurrent Definite Time VOLTAGE INPUTS: Configuration V1 CURRENT INPUTS: Configuration C2, C3 or C4 (MODIFIED) TEST SETTINGS: Definite Time Pickup Amps (0.1 to 20) 1 Amp CT Rating (0.02 to 4) Time Delay Cycles...
Testing – 6 46IT Negative Sequence Overcurrent Inverse Time VOLTAGE INPUTS: Configuration V1 CURRENT INPUTS: Configuration C2, C3 or C4 (MODIFIED) TEST SETTINGS: Inverse Time Pickup Amps (0.50 to 5.00) 1 Amp CT Rating (0.10 to 1.00) Standard Inverse Time Curves: Curve (1 to 4) Time Dial...
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M‑3311A Instruction Book Standard Curve Testing: The operating time will be read from Appendix D, Negative Sequence Inverse Time Curves for the applied current and appropriate Time Dial (TD) setting. The curve portions extending to lower than P current values are inactive and can be ignored.
Testing – 6 49 Winding Thermal Protection VOLTAGE INPUTS: None CURRENT INPUTS: Configuration C1, C2, C3 or C4 τ TEST SETTINGS: Time Constant Minutes (1.0 to 999.9) Max Overload Current Amps (1.00 to 10.00) 1 Amp CT Rating (0.20 to 2.00) Current Selection (Sum1,Sum2,W1,W2,W3,W4) Programmed Outputs...
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M‑3311A Instruction Book Time Test (Cold Start): Connect a timer to output contacts (Z) so that the timer stops timing when the contacts (Z) close. NOTE: The 49 Thermal Overload 49 current value can be obtained utilizing either the HMI (Status/Cur- rent Status) or IPScom Communications Software (Relay/Monitor/Secondary Status).
M‑3311A Instruction Book 50G Instantaneous Ground Overcurrent VOLTAGE INPUTS: None CURRENT INPUTS: Configuration C5 TEST SETTINGS: 50GW2/W3/W4 Pickup Amps (1.0 to 100.0) 1 Amp CT Rating (0.2 to 20.0) Programmed Outputs (1 to 8) Expanded I/O (9 to 16) Function 51G...
Testing – 6 50N Instantaneous Residual Overcurrent VOLTAGE INPUTS: Configuration V1 CURRENT INPUTS: As Described TEST SETTINGS: Pickup Amps (1.0 to 100.0) 1 Amp CT Rating (0.2 to 20.0) Current Selection (Sum1, Sum2, W1, W2, W3, W4) Time Delay Cycles (1 to 8160) Programmed Outputs (1 to 8)
M‑3311A Instruction Book 50BF Breaker Failure VOLTAGE INPUTS: Configuration V1 CURRENT INPUTS: As Described TEST SETTINGS: 50BFW1/W2/W3/W4 Phase Pickup Amps (0.10 to 10.00) 1 Amp CT Rating (0.02 to 2.00) 50BFW1/W2/W3/W4 Residual Pickup Amps (0.10 to 10.0) 1 Amp CT Rating (0.02 to 2)
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Testing – 6 Residual Pickup Test (Residual Current): Set the 50BF phase to a current higher than the residual pickup to prevent the 50BF phase from tripping. Connect the inputs in Configuration C1 (modified), designated previously. The modification to C1 is to set all three currents to phase angle s0° and inject equal magnitude. In this configuration, the applied value of I is equal to the applied 3-phase currents.
M‑3311A Instruction Book 51 Inverse Time Phase Overcurrent VOLTAGE INPUTS: None CURRENT INPUTS: Configuration C1 or C2 or C3 or C4 TEST SETTINGS: 51W1/W2/W3/W4 Pickup Amps (0.50 to 12.00) Current Selection (Sum1, Sum2, W1, W2, W3, W4) 1 Amp CT Rating (0.1 to 2.4)
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Testing – 6 Very Inverse Extremely Inverse Long Time Inverse Standard Inverse 0.14 13.5 t = TD x t = TD x t = TD x t = TD x 0.02 M - 1 M - 1 t = time in seconds TD = Time Dial setting M = current in multiples of pickup Repeat Steps 4 and 5 using Configurations C2, C3 and C4.
M‑3311A Instruction Book 51G Inverse Time Ground Overcurrent VOLTAGE INPUTS: None CURRENT INPUTS: Configuration C5 TEST SETTINGS: 51GW2/W3/W4 Pickup Amps (0.50 to 12.00) 1 Amp CT Rating (0.1 to 2.4) Standard Inverse Time Curves: Curve (1 to 4) Time Dial (0.5 to 11.0)
Testing – 6 51N Inverse Time Residual Overcurrent VOLTAGE INPUTS: None CURRENT INPUTS: As Described TEST SETTINGS: 51N W1/W2/W3/W4 Pickup Amps (0.5 to 6) 1 Amp CT Rating (0.1 to 1.2) Current Selection (Sum1, Sum2, W1, W2, W3, W4) Standard Inverse Time Curves: Curve (1 to 4) Time Dial...
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M‑3311A Instruction Book Refer to Appendix D. Calculate test times for levels represented on the graphs. It is suggested that 4 or 5 test levels be chosen. Very Inverse Extremely Inverse Long Time Inverse Standard Inverse 0.14 13.5 t = TD x...
Testing – 6 59 Phase Overvoltage (#1, #2 or #3) VOLTAGE INPUTS: Configuration V1 or V3 CURRENT INPUTS: None TEST SETTINGS: 59 Pickup Volts (5 to 180) Time Delay Cycles (1 to 8160) Programmed Outputs (1 to 8) Expanded I/O (9 to 16) Function 81O/U Disable...
M‑3311A Instruction Book 59G Ground Overvoltage (#1 or #2) VOLTAGE INPUTS: Configuration V2 CURRENT INPUTS: None TEST SETTINGS: 59G Pickup Volts (5 to 180) Time Delay Cycles (1 to 8160) Programmed Outputs (1 to 8) Expanded I/O (9 to 16)
M‑3311A Instruction Book 87H Phase Differential Overcurrent VOLTAGE INPUTS: None CURRENT INPUTS: Configuration C6 TEST SETTINGS: Pickup (5.0 to 20.0) Time Delay Cycles (1 to 8160) Programmed Outputs (1 to 8) Expanded I/O (9 to 16) Functions 46DT, 46IT, 49...
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Testing – 6 Minimum Pickup Test: Set the I (Input 1) = 0 Amps. Press and hold the TARGET RESET button in, then slowly increase I (Input 2) until the PHASE DIFFERENTIAL 87T/H LED illuminates or the pickup indicator operates on the computer target screen.
M‑3311A Instruction Book 87T Phase Differential Overcurrent VOLTAGE INPUTS: None CURRENT INPUTS: Configuration C6 TEST SETTINGS: Pickup (0.10 to 1.00) Percent Slope #1 (5 to 100) Percent Slope #2 (5 to 200) Slope Break Point (1.0 to 4.0) Even Harmonics Restraint (2nd and 4th) E...
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Testing – 6 Delta (Winding 1) Wye (Winding 2) Transformer Press and hold the TARGET RESET button in, then slowly increase I (Input 2) until the PHASE DIFFERENTIAL 87T/H LED illuminates or the pickup indicator operates on the computer target screen. The level of operation will be equal to 1.5•P per unit 3%. Wye (Winding 1) Wye (Winding 2) Transformer Release the TARGET RESET button, then decrease the current.
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M‑3311A Instruction Book Choose any values for I (Input 2) and calculate the expected I (Input 1) according to the following: (1 + S2 ) + BP (S1-S2) (1 - S1 and S2 = slope in % from above. The differential current, I –...
Testing – 6 87GD Ground Differential (#1, #2) VOLTAGE INPUTS: None CURRENT INPUTS: As Described Below TEST SETTINGS: 87GD Pickup Amps (0.20 to 10.00) 1 Amp CT Rating (0.04 to 2.00) Time Delay cycles (1 to 8160) CT Ratio Correction (0.10 to 7.99) Programmed Outputs (1 to 8)
M‑3311A Instruction Book BM Breaker Monitoring VOLTAGE INPUTS: None CURRENT INPUTS: As Described TEST SETTINGS: Pickup kAmps (kA (0 to 50,000) Delay Cycles (0.1 to 4095.9) Timing Method T or Preset Accumulators Phase A, B, or C kAmp (kA ) Cycles* (0 to 50,000)
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Testing – 6 Pickup Test: Apply a current value that considers Timing Method and Pickup Setting to current input I NOTE: If the target pickup setting is a large value (0 to 50,000) the Preset Accumulator Settings feature can be used to preset the accumulator values to just below the target setting. Utilizing either the HMI (Breaker Monitoring/Breaker Acc.
M‑3311A Instruction Book Trip/Close Circuit Monitoring VOLTAGE INPUTS: As Described CURRENT INPUTS: None TEST SETTINGS: Delay Cycles (1 to 8160) Dropout Time Delay Cycles (1 to 8160) Programmed Outputs (1 to 8) Expanded I/O (9 to 16) Test Setup: Determine the Trip/Close Circuit Monitoring function settings to be tested.
Testing – 6 Through Fault VOLTAGE INPUTS: As Described CURRENT INPUTS: None TEST SETTINGS: Through Fault Current Threshold 5 Amps (1.0-100.0) 1 Amp (0.2-20.0) Pickup Operation Limit (1-65535) Cumulative I^2T 100k A^2 Cycles (10-1000000) Time Delay 1 Cycles (1-8160) Current Selection (Sum1, Sum2, W1, W2, W3, W4) Threshold and Cumulative I^2 T Limit Tests: Utilize the IPSCom Metering II screen to monitor the counters.
M‑3311A Instruction Book IPSlogic (#1-6) VOLTAGE INPUTS: As required CURRENT INPUTS: As required TEST SETTINGS: Time Delay Cycles (1 to 65500) Reset/Dropout Delay Cycles (0 to 65500) Programmed Outputs (1 to 8) Expanded I/O (9 to 16) Blocking Inputs (1 to 6)
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The functional Configuration Record Form and recording the configuration and setting of reproduces the Configure Relay menus including the M‑3311A Transformer Protection Relay, and the Setup Relay submenu which is accessible via to file the data for future reference. Examples of S‑3300 IPScom...
50G W3 50G W4** 50G W4** * Not available in Four Winding applications. ** Not available in Two or Three Winding applications. NOTE: The M‑3311A is shipped with all functions disabled. Table A‑1 Relay Configuration (page 1 of 2) A–2...
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* Not available in Four Winding applications. ** Not available in Two or Three Winding applications. *** Not Available in Non Expanded I/O units NOTE: The M‑3311A is shipped with all functions disabled. Table A‑1 Relay Configuration (page 2 of 2)
M‑3311A Instruction Book System Communication Setup Communication Setup COM 1 Baud Rate: o 300 o 600 o 1200 o 2400 o 4800 o [9600] COM 2 Baud Rate: o 300 o 600 o 1200 o 2400 o 4800 o [9600] Dead Sync Time: _____ 2 msec –...
Appendix – A Setup System – Two or Three Windings Nominal Voltage: _____ 60 V – 140 V [120] Nominal Current: _____ 0.50 A – 15.00 A [5.00] Phase Rotation o ACB o [ABC] Demand Timing Method o [15 Minutes] o 30 Minutes o 60 Minutes Current Summing 1 o W1 o W2 o W3 Current Summing 2...
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M‑3311A Instruction Book Setup System – Two or Three Windings (Cont.'d) Custom Selections: Transformer W1 Transformer W2 Transformer W3 o 0 Y o 0 Y o 0 Y o 1 Dac o 1 Dac o 1 Dac o 5 Inverse Dab...
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Appendix – A Setup System – Two or Three Windings (Cont.'d) VT a Ratio: ________:1 – 6550.0 [1.0] VT Vx Ratio: ________:1 – 6550.0 [1.0] CT W1 Phase Ratio: ________:1 – 65500.0 [1.0] CT W2 Phase Ratio: ________:1 – 65500.0 [1.0] CT W3 Phase Ratio: ________:1 –...
M‑3311A Instruction Book Setup System – Four Windings Nominal Voltage: _____ 60 V – 140 V [120] Phase Rotation o [ACB] o ABC Demand Timing Method o [15 Minutes] o 30 Minutes o 60 Minutes VT Config. o [VAB] o VBC o VCA o VA o VB o VC...
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Appendix – A Setup System – Four Windings (Cont.'d) Custom Selections: Transformer W1 Transformer W2 Transformer W3 Transformer W4 o 0 (Y) o 0 Y o 0 Y o 0 Y o 1 Dac o 1 Dac o 1 Dac o 1 Dac o 5 (Inverse Dab) o 5 Inverse Dab...
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M‑3311A Instruction Book Setup System – Four Windings (Cont.'d) VT and CT Ratio VT Ratio: ________:1 – 6550.0 [1.0] VT Ground Ratio: ________:1 – 6550.0 [1.0] CT W1 Phase Ratio: ________:1 – 65500.0 [1.0] CT W2 Phase Ratio: ________:1 –...
Appendix – A System Setpoints and Settings 24 – Volts/Hz Overexcitation Definite Time #1 o Disable o Enable Pickup: _____ 100 – 200 (%) Time Delay: _____ 30 – 8160 (Cycles) I/O Selection: Outputs o #1 o #2 o #3 o #4 o #5 o #6...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 27 – Phase Undervoltage 27 #1 o Disable o Enable Pickup: _____ 5 – 140 (V) Time Delay: _____ 1 – 8160 (Cycles) Inhibit: _____ 5 – 140 (V) o Disable o Enable...
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Appendix – A System Setpoints and Settings (Cont.'d) 46 – Negative Sequence Overcurrent 46-W2 Definite Time o Disable o Enable Pickup: _____ 0.10 – 20.00 (A) Time Delay: _____ 1 – 8160 (Cycles) I/O Selection: Outputs o #1 o #2 o #3 o #4 o #5...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 46 – Negative Sequence Overcurrent (Cont.'d) 46-W3 (Cont.'d) Blocking Inputs o #1 o #2 o #3 o #4 o #5 o #6 o #7 o #8 o #9 o #10 o #11...
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Appendix – A System Setpoints and Settings (Cont.'d) 46 – Negative Sequence Overcurrent (Cont.'d) 46-W4 (Cont.'d) (Not available in Two or Three Winding applications) Inverse Time Curves: o BECO Definite Time o BECO Inverse o BECO Very Inverse o BECO Extremely Inverse o IEC Inverse o IEC Very Inverse o IEC Extremely Inverse...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 50 – Instantaneous Phase Overcurrent 50 – #1 o Disable o Enable Pickup: _____ 1.0 – 100.0 (A) Time Delay: _____ 1 – 8160 (Cycles) Current Selection: o Summing 1 o Summing 2...
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Appendix – A System Setpoints and Settings (Cont.'d) 50 – Instantaneous Phase Overcurrent (Cont.'d) 50 – #4 o Disable o Enable Pickup: _____ 1.0 – 100.0 (A) Time Delay: _____ 1 – 8160 (Cycles) Current Selection: o Summing 1 o Summing 2 o Winding 1 o Winding 2 o Winding 3...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 50 – Instantaneous Phase Overcurrent (Cont.'d) 50 – #7 o Disable o Enable (Not available in Two or Three Winding applications) Pickup: _____ 1.0 – 100.0 (A) Time Delay: _____ 1 – 8160 (Cycles)
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Appendix – A System Setpoints and Settings (Cont.'d) 50N – Instantaneous Residual Overcurrent 50N – #1 o Disable o Enable Pickup: _____ 1.0 – 100.0 (A) Time Delay: _____ 1 – 8160 (Cycles) Current Selection: o Summing 1 o Summing 2 o Winding 1 o Winding 2 o Winding 3...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 50N – Instantaneous Residual Overcurrent (Cont.'d) 50N – #4 o Disable o Enable Pickup: _____ 1.0 – 100.0 (A) Time Delay: _____ 1 – 8160 (Cycles) Current Selection: o Summing 1 o Summing 2...
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Appendix – A System Setpoints and Settings (Cont.'d) 50N – Instantaneous Residual Overcurrent (Cont.'d) 50N – #7 o Disable o Enable (Not available in Two or Three Winding applications) Pickup: _____ 1.0 – 100.0 (A) Time Delay: _____ 1 – 8160 (Cycles) Current Selection: o Summing 1 o Summing 2...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 50G – Instantaneous Ground Overcurrent 50G-W2-#1 o Disable o Enable Pickup: _____ 1.0 – 100.0 (A) Time Delay: _____ 1 – 8160 (Cycles) I/O Selection: Outputs o #1 o #2 o #3...
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Appendix – A System Setpoints and Settings (Cont.'d) 50G – Instantaneous Ground Overcurrent (Cont.'d) 50G-W4-#1 o Disable o Enable (Not available in Two or Three Winding applications) Pickup: _____ 1.0 – 100.0 (A) Time Delay: _____ 1 – 8160 (Cycles) I/O Selection: Outputs o #1...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 50BF – Breaker Failure 50BF-W1 o Disable o Enable Phase Pickup: _____ 0.10 – 10.00 (A) Residual Pickup: _____ 0.10 – 10.00 (A) Time Delay: _____ 1 – 8160 (Cycles) I/O Selection:...
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Appendix – A System Setpoints and Settings (Cont.'d) 50BF-W3 o Disable o Enable Phase Pickup: _____ 0.10 – 10.00 (A) Residual Pickup: _____ 0.10 – 10.00 (A) Time Delay: _____ 1 – 8160 (Cycles) I/O Selection: Output Initiate o #1 o #2 o #3 o #4...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 51 – Inverse Time Phase Overcurrent 51 – #1 o Disable o Enable Pickup: _____ 0.50 – 12.00 (A) Time Dial: _____ 0.5 – 11.0 Current Selection: o Summing 1 o Summing 2...
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Appendix – A System Setpoints and Settings (Cont.'d) 51 – Inverse Time Phase Overcurrent (Cont.'d) 51 – #3 o Disable o Enable Pickup: _____ 0.50 – 12.00 (A) Time Dial: _____ 0.5 – 11.0 Current Selection: o Summing 1 o Summing 2 o Winding 1 o Winding 2 o Winding 3...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 51N – Inverse Time Residual Overcurrent 51N – #1 o Disable o Enable Pickup: _____ 0.50 – 6.00 (A) Time Dial: _____ 0.5 – 11.0 Current Selection: o Summing 1 o Summing 2...
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Appendix – A System Setpoints and Settings (Cont.'d) 51N – Inverse Time Residual Overcurrent (Cont.'d) 51N – #3 o Disable o Enable Pickup: _____ 0.50 – 6.00 (A) Time Dial: _____ 0.5 – 11.0 Current Selection: o Summing 1 o Summing 2 o Winding 1 o Winding 2 o Winding 3...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 51G – Inverse Time Ground Overcurrent 51G – W2 o Disable o Enable Pickup: _____ 0.50 – 12.00 (A) Time Dial: _____ 0.5 – 11.0 Inverse Time Curves: o BECO Definite Time...
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Appendix – A System Setpoints and Settings (Cont.'d) 51G – Inverse Time Ground Overcurrent (Cont.'d) 51G – W4 o Disable o Enable (Not available in Two or Three Winding applications) Pickup: _____ 0.50 – 12.00 (A) Time Dial: _____ 0.5 – 11.0 Inverse Time Curves: o BECO Definite Time o BECO Inverse...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 59 – Phase Overvoltage (Only available in Two or Three Winding applications) 59 – #1 o Disable o Enable Pickup: _____ 5 – 180 (V) Time Delay: _____ 1 – 8160 (Cycles)
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Appendix – A System Setpoints and Settings (Cont.'d) 59G – Ground Overvoltage (Only available in Four Winding applications) 59G – #1 o Disable o Enable Pickup: _____ 5 – 180 (V) Time Delay: _____ 1 – 8160 (Cycles) I/O Selection: Outputs o #1 o #2...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 59G – Ground Overvoltage (Only available in Two or Three Winding applications) 59G – #1 o Disable o Enable Pickup: _____ 5 – 180 (V) Time Delay: _____ 1 – 8160 (Cycles)
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Appendix – A System Setpoints and Settings (Cont.'d) 81 – Over/Under Frequency 81 – #1 o Disable o Enable Pickup: _____ 55.00 – 65.00 (Hz) Time Delay: _____ 2 – 65500 (Cycles) I/O Selection: Outputs o #1 o #2 o #3 o #4 o #5 o #6...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 87 – Phase Differential Current 87T o Disable o Enable Pickup: _____ 0.10 – 1.00 (PU) Percent Slope #1: _____ 5 – 100 (%) Percent Slope #2: _____ 5 – 200 (%) Slope Break Point: _____ 1.0 –...
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Appendix – A System Setpoints and Settings (Cont.'d) 87GD – Ground Differential 87GD-W2-#1 o Disable o Enable Pickup: _____ 0.20 – 10.0 (A) Time Delay: _____ 1 – 8160 (Cycles) I/O Selection: Outputs o #1 o #2 o #3 o #4 o #5 o #6 o #7...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) 87GD – Ground Differential (Cont.'d) 87GD-W3-#1 o Disable o Enable Pickup: _____ 0.20 – 10.0 (A) Time Delay: _____ 1 – 8160 (Cycles) I/O Selection: Outputs o #1 o #2 o #3...
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Appendix – A System Setpoints and Settings (Cont.'d) 87GD – Ground Differential (Cont.'d) 87GD-W4-#1 o Disable o Enable (Not available in Two or Three Winding applications) Pickup: _____ 0.20 – 10.0 (A) Time Delay: _____ 1 – 8160 (Cycles) I/O Selection: Outputs o #1 o #2...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) IPSlogic #1 o Disable o Enable Initiating Outputs: o #1 o #2 o #3 o #4 o #5 o #6 o #7 o #8 o #9 o #10 o #11 o #12...
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Appendix – A System Setpoints and Settings (Cont.'d) IPSlogic #2 o Disable o Enable Initiating Outputs: o #1 o #2 o #3 o #4 o #5 o #6 o #7 o #8 o #9 o #10 o #11 o #12 o #13 o #14 o #15 o #16 Initiating Outputs Logic Gate: o OR o AND...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) IPSlogic #3 o Disable o Enable Initiating Outputs: o #1 o #2 o #3 o #4 o #5 o #6 o #7 o #8 o #9 o #10 o #11 o #12...
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Appendix – A System Setpoints and Settings (Cont.'d) IPSlogic #4 o Disable o Enable Initiating Outputs: o #1 o #2 o #3 o #4 o #5 o #6 o #7 o #8 o #9 o #10 o #11 o #12 o #13 o #14 o #15 o #16 Initiating Outputs Logic Gate: o OR o AND...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) IPSlogic #5 o Disable o Enable Initiating Outputs: o #1 o #2 o #3 o #4 o #5 o #6 o #7 o #8 o #9 o #10 o #11 o #12...
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Appendix – A System Setpoints and Settings (Cont.'d) IPSlogic #6 o Disable o Enable Initiating Outputs: o #1 o #2 o #3 o #4 o #5 o #6 o #7 o #8 o #9 o #10 o #11 o #12 o #13 o #14 o #15 o #16 Initiating Outputs Logic Gate: o OR o AND...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) BM – Breaker Monitor BM–W1 o Disable o Enable Pickup: _____ 1 – 50000 (kA Cycles) Time Delay: _____ 0.1 – 4095.9 (Cycles) Timing Method Selection o IT o I^2T Preset Accumulator Phase A: _____ 0 –...
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Appendix – A System Setpoints and Settings (Cont.'d) BM – Breaker Monitor (Cont.'d) BM–W3 o Disable o Enable Pickup: _____ 1 – 50000 (kA Cycles) Time Delay: _____ 0.1 – 4095.9 (Cycles) Timing Method Selection o IT o I^2T Preset Accumulator Phase A: _____ 0 –...
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M‑3311A Instruction Book System Setpoints and Settings (Cont.'d) TCM #1 – Trip Circuit Monitor o Disable o Enable Delay: _____ 1 – 8160 (Cycles) Dropout Time Delay: _____ 1 – 8160 (Cycles) I/O Selection: Outputs o #1 o #2 o #3...
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Appendix – A System Setpoints and Settings (Cont.'d) TF – Through Fault o Disable o Enable Through Fault Current Threshold: _____ 1.0 – 100.0 (A) Through Fault Current Time Delay: _____ 1 – 8160 (Cycles) Pickup Operation limit: _____ 1 – 65535 Cumulative I^2T Limit: _____ 1 –...
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M‑3311A Instruction Book This Page Left Intentionally Blank A–50...
BECO 2200 relay database DNP Configuration Parameters specified protocol document are available from the M‑3311A relays support DNP through the rear factory or our website at www.beckwithelectric.com. RS‑232 (COM2) & RS‑485 (COM3) communication ports. These ports support baud rates 300, 600, The S‑3300 IPScom...
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Null Modem Cable: M‑0423, if direct connection to inputs, demand metering, target and a PC (personal computer) is desired. control information, and counters. All points in the M‑3311A relay are of static type, meaning that an integrity poll will dump all data to the querying RTU. B–2...
M‑3311A Instruction Book PC Master IPScom running in “Echo Cancel” mode 25 pin or 9-25 pin Straight-through Cable DYMEC Fiber Optic Link/Repeater D C E D T E Fiber Optic Cable Slave #3 Slave #1 Slave #2 Address 2 Address 3...
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Appendix B – Communications RS-485 2-Wire Network Slave #3 Slave #1 Slave #2 Address 6 Address 8 Address 1 PC Master 200 Ω* B(-) A(+) Twisted RS-232 to RS-485 2-wire converter or RS-485 PC Card ▲ CAUTION: Due to the possibility of ground potential difference between units, all units should be mounted in the same rack.
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M‑3311A Instruction Book This Page Left Intentionally Blank B–6...
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Hertz functions (Figures D‑1 through D‑4), the curves for 51, 51N, 51G and 46 functions. second set is for the M‑3311A functions which utilize the IEC time over current curves (Figures D‑5) through D‑12) and the third set is for those functions that utilize the IEEE Inverse Time Overcurrent Curves (Figures D‑13 through D‑15).
Inverse Time Curves – Appendix D Multiple of Tap Setting Definite Time Inverse Time Very Inverse Time Extremely Inverse Time 5.00 0.23266 0.40871 0.24456 0.26227 5.20 0.23029 0.39078 0.23269 0.24343 5.40 0.22834 0.37495 0.22254 0.22660 5.60 0.22684 0.36102 0.21394 0.21151 5.80 0.22583 0.34884...
M‑3311A Instruction Book 0.01 10 11 12 13 14 15 16 17 18 19 20 Multiple of Pickup IEC Class B IEC Class A Very Inverse Standard Inverse 0.14 13.5 t=TD x t=TD t=TD x 0.02 M - 1 Curve 5...
Inverse Time Curves – Appendix D 0.01 10 11 12 13 14 15 16 17 18 19 20 Multiple of Pickup IEC Class B IEC Class C IEC Class A Very Inverse Extremely Inverse Standard Inverse 0.14 13.5 t=TD x t=TD x t=TD x 0.02...
M‑3311A Instruction Book 0.01 11 12 13 14 15 16 17 18 19 IEC Class B IEC Class C IEC Class D Multiple of Pickup Very Inverse Extremely Inverse Long Time Inverse 13.5 t=TD x t=TD x t=TD x M - 1...
Inverse Time Curves – Appendix D 1000 IEC Class C IEC Class D Multiple of Pickup Extremely Inverse Long Time Inverse t=TD x t=TD x M - 1 Curve 7 Curve 8 Figure D-12 IEC Curve #4 Long-Time Inverse D–15...
For units with the optional HMI panel: • The ambient temperature where the Verify that the Power Supply (PS) fuses M‑3311A is stored is within a range of 5° are installed. C to 40° C Determine the unit power supply rating •...
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MODE. The relay will reset and normal running mode will resume. Storage of the M‑3311A greater than five years may NOTE: Pressing any button other than EXIT will require replacement of the lithium battery prior to return the user to DIAGNOSTIC MODE.
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Appendix – F Appendix — HMI Menu Flow F.1 HMI Menu Overview ..................F–2 Figure F-1 M-3931 Human-Machine Interface Module .........F–2 Figure F-2 HMI Menu Flow Overview ............F–3 F.2 HMI Menu Flow ....................F–4 Figure F-3 Voltage Relay Menu Flow ............F–4 Figure F-4 Current Relay Menu Flow ............F–5 Figure F-5 Frequency Relay, Volts Per Hertz Relay...
M-3311A Instruction Book HMI Menu Overview Appendix F illustrates the Human Machine Interface (HMI) menu flow that is presented on the M-3931 Human-Machine interface module. Key to Input Data All heavily bordered screens are either MENU screens which have horizontal choices (made with right - left arrows) or screens displaying a result of a choice previously made.
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M‑3311A Instruction Book Winding Underfrequency, SP-2, 4-55, 4-73:4-74, 6-1, 6-43 Current Inputs, 6-18 Underfrequency Setpoint Ranges, 4-74 M, 1-4:1-5, 6-5 Undervoltage Setpoint Ranges, 4-56 Setup, 4-1, 4-25:4-35, F-1, F-12:F-17 Unit Isolation, 5-7 Summing, 4-25, 4-31, 6-31, 6-33, 6-40 Unit Setup, 2-23, 2-26:2-28, 3-35:3-37, 4-1, 4-4:4-6,...
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There shall be no warranties which extend beyond those contained in the Beckwith Electric Co., Inc. terms of sale. All rights reserved by Beckwith Electric Co., Inc. No reproduction may be made without prior written approval of the Company.
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