GE MiCOM P40 Agile User Manual

5.3 Sensitive Earth Fault Protection Logic 378
5.4 Application Notes 379
5.4.1 Insulated Systems 379
5.4.2 Setting Guidelines (Insulated Systems) 380
6 High Impedance REF 382
6.1 High Impedance REF Principle 382
7 Thermal Overload Protection 384
7.1 Single Time Constant Characteristic 384
7.2 Dual Time Constant Characteristic 384
7.3 Thermal Overload Protection Implementation 385
7.4 Thermal Overload Protection Logic 385
7.5 Application Notes 385
7.5.1 Setting Guidelines for Dual Time Constant Characteristic 385
7.5.2 Setting Guidelines for Single Time Constant Characteristic 387
8 Broken Conductor Protection 389
8.1 Broken Conductor Protection Implementation 389
8.2 Broken Conductor Protection Logic 389
8.3 Application Notes 389
8.3.1 Setting Guidelines 389
9 Transient Earth Fault Detection 391
9.1 Transient Earth Fault Detection Implementation 392
9.2 Transient Earth Fault Detection Logic 393
9.2.1 Transient Earth Fault Detection Logic Overview 393
9.2.2 Fault Type Detector Logic 394
9.2.3 Direction Detector Logic - Standard Mode 394
9.2.4 Transient Earth Fault Detection Output Alarm Logic 394
Chapter 14 Voltage Protection Functions 395
1 Chapter Overview 397
2 Undervoltage Protection 398
2.1 Undervoltage Protection Implementation 398
2.2 Undervoltage Protection Logic 399
2.3 Application Notes 400
2.3.1 Undervoltage Setting Guidelines 400
3 Overvoltage Protection 401
3.1 Overvoltage Protection Implementation 401
3.2 Overvoltage Protection Logic 402
3.3 Application Notes 403
3.3.1 Overvoltage Setting Guidelines 403
4 Compensated Overvoltage 404
5 Residual Overvoltage Protection 405
5.1 Residual Overvoltage Protection Implementation 405
5.2 Residual Overvoltage Logic 406
5.3 Application Notes 406
5.3.1 Calculation for Solidly Earthed Systems 406
5.3.2 Calculation for Impedance Earthed Systems 407
5.3.3 Setting Guidelines 408
Chapter 15 Frequency Protection Functions 409
1 Chapter Overview 411
2 Frequency Protection 412
2.1 Underfrequency Protection 412
2.1.1 Underfrequency Protection Implementation 412
2.1.2 Underfrequency Protection logic 413
2.1.3 Application Notes 413
Contents P543i/P545i
x P54x1i-TM-EN-1

GE MiCOM P40 Agile Specifications

General

Brand	GE
Model	MiCOM P40 Agile
Category	Control Unit
Language	English