ABB REL670 2.2 IEC - Page 16

Directional residual overcurrent protection, four steps EF4PTOC .474
Identification.............................................................................. 474
Application.................................................................................474
Setting guidelines...................................................................... 476
Common settings for all steps.............................................. 477
2nd harmonic restrain...........................................................478
Parallel transformer inrush current logic...............................479
Switch onto fault logic...........................................................480
Settings for each step (x = 1, 2, 3 and 4)............................. 481
Line application example......................................................483
Four step directional negative phase sequence overcurrent
protection NS4PTOC .....................................................................488
Identification.............................................................................. 488
Application.................................................................................488
Setting guidelines...................................................................... 490
Settings for each step ..........................................................491
Common settings for all steps.............................................. 493
Sensitive directional residual overcurrent and power protection
SDEPSDE ..................................................................................... 494
Identification.............................................................................. 495
Application.................................................................................495
Setting guidelines...................................................................... 496
Thermal overload protection, one time constant, Celsius/
Fahrenheit LCPTTR/LFPTTR.........................................................505
Identification.............................................................................. 505
Application.................................................................................505
Setting guideline........................................................................506
Breaker failure protection CCRBRF............................................... 507
Identification.............................................................................. 507
Application.................................................................................507
Setting guidelines...................................................................... 507
Stub protection STBPTOC ............................................................ 511
Identification.............................................................................. 511
Application.................................................................................511
Setting guidelines...................................................................... 512
Pole discordance protection CCPDSC........................................... 513
Identification.............................................................................. 513
Application.................................................................................513
Setting guidelines...................................................................... 514
Directional underpower protection GUPPDUP............................... 514
Identification.............................................................................. 514
Application.................................................................................515
Setting guidelines...................................................................... 517
Directional overpower protection GOPPDOP ................................520
Table of contents
10 Line distance protection REL670 2.2 IEC
Application manual