BECKWITH ELECTRIC M?3311A

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Instruction Book

M‑3311A Transformer

Protection Relay

Main Page

Chapter 1: Introduction50
Default Chapter34
- Table of Contents34
- Instruction Book Contents50
Chapter 2: Operation50
Chapter 3: Ipscom50
Chapter 4: System Setup and Setpoints50
Chapter 5: Installation50
Chapter 6: Testing51
Appendix A: Configuration Record Forms51
Appendix B: Communications51
Appendix C: Self-Test Error Codes51
Appendix D: Inverse Time Curves51
Appendix E: Layup and Storage51
Appendix F: HMI Menu Flow51
- M-3311A Transformer Protection Relay51
Chapter 2 Operation56
- Front Panel Controls and Indicators56
- Operation (HMI/PC)56
  - Power Supply (PS1) and (PS2) Leds58
  - HMI Operation Overview59
  - Default Message Screens59
  - HMI Security59
  - Screen Message Menu Flow59
  - Status Monitoring (from Relay Front Panel)61
  - Status Monitoring (from Ipscom)62
  - Primary Metering and Status62
  - Primary Metering & Status Screen (2/3 Winding)62
  - Primary Metering & Status Screen (4 Winding)63
  - Secondary Metering and Status64
  - Monitor/Secondary Metering and Status64
  - Secondary Metering & Status Screen (2/3 Winding)64
  - Secondary Metering & Status Screen (4 Winding)65
  - Metering II66
  - Monitor/Metering II66
  - Metering II Screen (2/3 Winding)66
  - Metering II Screen (4 Winding)66
  - Demand Interval68
  - Demand Status68
  - Maximum Demand Current68
  - Demand (from Relay Front Panel)68
- Demand Status Screen69
  - Demand Status (from Ipscom)70
  - Demand Currents70
  - Max Demand Status70
  - View Target History70
  - View Target History (from Ipscom)72
  - View Targets72
  - Clear Targets72
- View Targets Screen72
  - Oscillograph Recorder Data73
  - Winding Recorder Partitions74
  - Oscillograph Recorder (from Ipscom)75
  - Retrieve Oscillograph Records76
- Oscillograph Record Download Dialog Screen76
- Oscillograph Download Successful Confirmation Screen76
  - Trigger Oscillograph77
  - Clear Oscillograph Records77
  - OSC to Comtrade77
- Trigger Oscillograph Confirmation Screen77
- Oscillograph Successfully Triggered Dialog Screen77
- Clear Oscillograph Records Confirmation Screen77
- Oscillograph Successfully Cleared Records Dialog Screen77
  - Software Version (Relay Front Panel Only)78
  - Serial Number (Relay Front Panel Only)78
  - Alter Access Codes (from Relay Front Panel)79
  - Alter User Access Codes (from Ipscom)80
  - Comm Access Codes80
  - User Access Codes80
- Change Comm Access Code Dialog Screen80
- Access Code Change Confirmation Screen80
  - System Error Codes, Output and Alarm Counters81
- Access Level Code Dialog Screen81
- Change User Access Code Dialog Screen81
  - Clear Output Counters (Relay Front Panel)82
  - Clear Alarm Counters (Relay Front Panel)82
  - Clear Error Codes (Relay Front Panel)82
  - Resetting Counters (from Ipscom)83
  - Tools/Counters and Error Codes83
- Counters and Error Codes Dialog Screen83
  - Through Fault Recorder (from Ipscom)84
- View through Fault Record Screen84
- Clear through Fault Record Confirmation Screen85
- Through Fault Record Cleared Successfully Screen85
- Sequence of Events Retrieve/Download Screen85
  - Ipscom Main Screen85
- View Sequence of Events Record Screen86
Chapter 3 Ipscom88
Ipscom Functional Description88
- Ipscom Main Screen Menu Bar88
- Shortcut Command Buttons88
- Ipscom Main Screen Status Line88
- Ipscom Menu Selection90
- Ipscom Modem Communication Dialog Screen93
  - Monitor Menu94
  - Monitor/Primary Metering & Status94
- Primary Metering Status Screen (4 Winding)95
  - Monitor/Secondary Metering & Status96
- Secondary Metering Status Screen (4 Winding)97
- Metering II Screen (4 Winding)99
  - Monitor/Phasor Diagram100
- Phasor Diagram (4 Winding)101
  - Monitor/Phasor Diagram (F87T)102
- Phasor Diagram (F87T) (4 Winding)103
- O Map Screen (4 Winding)112
  - Relay/Setup/Display All Setpoints113
- Display All Setpoints Screen (4 Winding)114
- View Sequence of Events Recorder Screen119
- Output Test Warning Dialog Screen125
- 4.1 Unit Setup128
- Setup Sequence of Events Recorder Dialog Screen150
  - HMI Demand Interval Setup151
- Setup System152
  - 2/3 Winding Setup152
  - Winding Summing152
2/3 Winding Setup (Cont.'D)153
- Winding Summing158
- Winding Setup (Cont.'D)158
- Ipscom ® Relay Setup System Dialog Screen (2/3 Winding)163
- Ipscom Relay Setup System Dialog Screen (4 Winding)164
- Ipscom Selection Screen for Output Settings165
- Ipscom Selection Screen for Input Settings166
- System Diagrams167
- System Setpoints176
- Example of V/Hz Capability and Protection Curves179
- Ipscom (24) Volts/Hertz Setpoint Ranges181
  - 27 Phase Undervoltage182
  - Winding182
- Ipscom (27) Undervoltage Setpoint Ranges (4 Winding)183
  - 46 Negative Sequence Overcurrent184
  - 49 Winding Thermal Protection186
- Function Overload Curves187
- Ipscom (50G) Instantaneous Ground Overcurrent Setpoint Ranges192
- Ipscom (C.T. Tap) Phase Differential Current Setpoint Ranges203
- Programmable Dual Slope Percentage Restraint Characteristic205
- Trip/Close Circuit Monitor Setpoint Ranges212
  - CCM (Close Circuit Monitoring)213
- Recommended Close Circuit Monitoring Input Configuration214
- Close Circuit Monitoring Input Configuration with Anti-Pump Relay Not Bypassed215
Chapter 4 System Setup and Setpoints (Cont'D.)218
- Ipslogic Function Setup219
- Select Initiating Functions Screen (2/3 Winding)221
- System Applications and Logic Schemes223
- Load Shedding Logic226
- Transformer Connections228
- Delta-Ac/Wye/Wye CT Connection Diagram234
- Custom Settings for Delta-Ac/Wye/Wye235
  - GSU Transformer Example236
- Wye/Delta-Ac/Delta-Ac CT Connection Diagram236
- General Information238
- Mechanical/Physical Dimensions238
- External Connections244
- Pre-Commissioning Checkout271
- Circuit Board Switches and Jumpers273
- Close Circuit Monitor 1 Input Voltage Select Jumper Configuration274
- 3311A Circuit Board Standard I/O275
- 3311A Circuit Board Expanded I/O276
- Ipscom Communications and Analysis Software Installation277
  - Hardware Requirements277
  - Installing Ipscom277
- Activating Initial Local Communications277
- Initial Setup Procedure278
  - Setup Procedure278
    - Diagnostic Test Procedures281
  - Typical 2/3 Winding M-3911A Target Module284
Equipment and Test Setup281
- Output Test (Relay)282
- Input Test (Status)283
- Current Inputs, Configuration C4 (4 Winding)291
- Current Inputs, Configuration C7 (2 Winding)292
- Current Inputs, Configuration C8 (3 Winding)293
- Two Voltage Inputs, Configuration V5 (2 Winding)294
  - Protection Elements295
  - Terminal Connections297
- Terminal Connections for Two Voltage Inputs (2 Winding)298
  - Accuracy for Voltage Protection Functions299
  - Diagnostic Test Procedures300
- Relay Configuration (Page 1 of 2)335
Appendix C Error Codes390
- Self-Test Error Codes (Page 1 of 2)390
- IEC Curve #2 very Inverse404
- IEC Curve #3 Extremely Inverse405
- IEC Curve #4 Long-Time Inverse406
- IEEE (Moderately) Inverse Time Overcurrent Curves407
- IEEE very Inverse Time Overcurrent Curves408
- IEEE Extremely Inverse Time Overcurrent Curves409
  - Storage Requirements (Environment)410
- HMI Menu Overview413
  - HMI Menu Flow Overview414
- HMI Menu Flow415
- Relay Status Menu Flow (Page 1 of 2)429
- Relay Demand Menu Flow431
- View Target History and Oscillograph Recorder Menu Flow432
- Relay Communication Menu Flow (Page 1 of 2)433
- Relay Setup Menu Flow (Page 1 of 4)435

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Summary

Chapter 2 Operation

2.1 Front Panel Controls and Indicators

2.2 Operation (HMI;PC)

Explains how to interrogate the relay using the HMI module or PC software.

Chapter 3 IPScom

3.1 IPScom Functional Description

Chapter 4 System Setup and Setpoints

4.1 Unit Setup

Covers general unit setup, communication, and system clock configuration.

4.2 Setup System

Defines common information like CT/VT ratios, voltage rating, and winding configurations.

4.4 System Setpoints

Details enabling functions, output contacts, and input blocking for the relay.

4.6 Transformer Connections

Chapter 5 Installation

5.3 External Connections

Covers terminal connections for power supply, inputs, outputs, and communication.

5.8 Initial Setup Procedure

Provides a step-by-step guide for the initial setup of the relay.

Chapter 6 Testing

6.2 Diagnostic Test Procedures

6.8 Functional Test Procedures

Appendix F: HMI Menu Flow

F.2 HMI Menu Flow