GE P54C User Manual

5.8.1 Setting the Thresholds for the Total Broken Current 257
5.8.2 Setting the thresholds for the Number of Operations 258
5.8.3 Setting the thresholds for the Operating Time 258
5.8.4 Setting the Thresholds for Excesssive Fault Frequency 258
6 CB State Monitoring 259
6.1 CB State Monitor Logic diagram 260
7 Circuit Breaker Control 261
7.1 CB Control using the IED Menu 261
7.2 CB Control using the Hotkeys 262
7.3 CB Control using the Function Keys 262
7.4 CB Control using the Opto-inputs 263
7.5 Remote CB Control 263
7.6 CB Healthy Check 264
7.7 Synchronisation Check 264
7.8 CB Control AR Implications 264
7.9 CB Control Logic Diagram 265
8 Pole Dead Function 266
8.1 Pole Dead Logic 266
9 System Checks 267
9.1 System Checks Implementation 267
9.1.1 VT Connections 267
9.1.2 Voltage Monitoring 268
9.1.3 Check Synchronisation 268
9.1.4 Check Syncronisation Vector Diagram 268
9.2 Voltage Monitor for CB Closure 270
9.3 Check Synchronisation Monitor for CB Closure 271
9.4 System Check PSL 272
9.5 Application Notes 272
9.5.1 Predictive Closure of Circuit Breaker 272
9.5.2 Voltage and Phase Angle Correction 272
Chapter 13 Supervision 275
1 Chapter Overview 277
2 Current Differential Supervision 278
2.1 Current Differential Starter Supervision 278
2.1.1 Current Differential Starter Supervision Logic 280
2.1.2 Current Differential Start Logic 281
2.2 Switched Communication Path Supervision 281
2.3 Communications Asymmetry Supervision 282
3 Voltage Transformer Supervision 284
3.1 Loss of One or Two Phase Voltages 284
3.2 Loss of all Three Phase Voltages 284
3.3 Absence of all Three Phase Voltages on Line Energisation 284
3.4 VTS Implementation 285
3.5 VTS Logic 286
4 Current Transformer Supervision 289
4.1 Differential CTS 289
4.2 Differential CTS Logic 290
4.3 CTS Implementation 290
4.4 Standard CTS Logic 291
4.5 CTS Blocking 291
4.6 Application Notes 291
4.6.1 Setting Guidelines 291
4.6.2 Differential CTS Setting Guidelines 292
5 Trip Circuit Supervision 293
5.1 Trip Circuit Supervision Scheme 1 293
Contents P54A/B/C/E
viii P54xMED-TM-EN-1

GE P54C Specifications

General

Brand	GE
Model	P54C
Category	Relays
Language	English