GE MiCOM P40 Agile User Manual

2.2 Overfrequency Protection 413
2.2.1 Overfrequency Protection Implementation 413
2.2.2 Overfrequency Protection logic 414
2.2.3 Application Notes 414
3 Independent R.O.C.O.F Protection 415
3.1 Indepenent R.O.C.O.F Protection Implementation 415
3.2 Independent R.O.C.O.F Protection Logic 415
Chapter 16 Current Transformer Requirements 417
1 Chapter Overview 419
2 Recommended CT Classes 420
3 Current Differential Requirements 421
4 Distance Protection Requirements 422
5 Determining Vk for IEEE C-class CT 423
6 Worked Examples 424
6.1 Calculation of Primary X/R ratio 424
6.2 Calculation of Source Impedance 424
6.3 Calculation of Full Line Impedance 424
6.4 Calculation of Total Impedance up to Remote Busbar 425
6.5 Calculation of Through Fault X/R ratio 425
6.6 Calculation of Through Fault Current 425
6.7 Calculation of Line Impedance to Zone 1 Reach Point 425
6.8 Calculation of Total Impedance to Zone 1 Reach Point 425
6.9 Calculation of X/R to Zone 1 Reach Point 425
6.10 Calculation of Fault Current to Zone 1 Reach Point 425
6.11 Calculation of Vk for Current Differential Protection 425
6.12 Calculation of Vk for Distance Zone 1 Reach Point 425
6.13 Calculation of Vk for Distance Zone 1 Close-up Fault 426
6.14 Calculation of Vk for Distance Time Delayed Zones 426
6.15 Overcurrent Elements 426
6.16 Overcurrent Elements 426
Chapter 17 Monitoring and Control 427
1 Chapter Overview 429
2 Event Records 430
2.1 Event Types 430
2.1.1 Opto-input Events 431
2.1.2 Contact Events 431
2.1.3 Alarm Events 431
2.1.4 Fault Record Events 432
2.1.5 Maintenance Events 432
2.1.6 Protection Events 432
2.1.7 Security Events 433
2.1.8 Platform Events 433
3 Disturbance Recorder 434
4 Measurements 435
4.1 Measured Quantities 435
4.2 Measurement Setup 435
4.3 Fault Locator 435
4.4 Opto-input Time Stamping 435
5 CB Condition Monitoring 436
5.1 Broken Current Accumulator 437
5.2 CB Trip Counter 437
5.3 CB Operating Time Accumulator 438
5.4 Excessive Fault Frequency Counter 438
P543i/P545i Contents
P54x1i-TM-EN-1 xi

GE MiCOM P40 Agile Specifications

General

Brand	GE
Model	MiCOM P40 Agile
Category	Control Unit
Language	English