Setting guidelines............................................................................ 365
Common settings
for all steps.................................................... 365
2nd harmonic restrain.................................................................367
Parallel transformer inrush current logic.....................................367
Switch onto fault logic.................................................................368
Settings for each step (x = 1, 2, 3 and 4)................................... 369
Transformer application example............................................... 372
Four step directional negative phase sequence overcurrent
protection NS4PTOC (46I2)..................................................................377
Identification.................................................................................... 377
Application....................................................................................... 377
Setting guidelines............................................................................ 379
Settings for each step ................................................................379
Common settings for all steps.................................................... 382
Sensitive directional residual overcurrent and power protection
SDEPSDE (67N)...................................................................................383
Identification.................................................................................... 384
Application....................................................................................... 384
Setting guidelines............................................................................ 386
Thermal overload protection, two time constants TRPTTR (49)...........395
Identification.................................................................................... 395
Application....................................................................................... 395
Setting guideline.............................................................................. 396
Breaker failure protection CCRBRF(50BF)...........................................399
Identification.................................................................................... 399
Application....................................................................................... 399
Setting guidelines............................................................................ 399
Pole discrepancy protection CCPDSC(52PD)...................................... 403
Identification.................................................................................... 403
Application....................................................................................... 403
Setting guidelines............................................................................ 404
Directional underpower protection GUPPDUP (37)..............................404
Identification.................................................................................... 405
Application....................................................................................... 405
Setting guidelines............................................................................ 407
Directional overpower protection GOPPDOP (32)................................411
Identification.................................................................................... 411
Application....................................................................................... 411
Setting guidelines............................................................................ 413
Table of contents
8 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Application manual
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