ABB RELION 670 SERIES Applications Manual page 15

Line distance protection REL670 2.2 ANSI
Application manual
Underreaching and overreaching schemes................................413
Setting guidelines............................................................................ 420
General.......................................................................................420
Setting of zone 1.........................................................................421
Setting of overreaching zone......................................................421
Setting of reverse zone...............................................................422
Series compensated and adjacent lines.....................................423
Setting of zones for parallel line application............................... 427
Setting of reach in resistive direction..........................................429
Load impedance limitation, without load encroachment function430
Zone reach setting higher than minimum load impedance.........431
Parameter setting guidelines...................................................... 432
Power swing detection ZMRPSB (68).................................................. 435
Identification.................................................................................... 435
Application....................................................................................... 435
General.......................................................................................435
Basic characteristics...................................................................436
Setting guidelines............................................................................ 436
Power swing logic PSLPSCH .............................................................. 444
Identification.................................................................................... 444
Application....................................................................................... 444
Setting guidelines............................................................................ 446
Scheme communication and tripping for faults occurring
during power swinging over the protected line........................... 446
Blocking and tripping logic for evolving power swings................451
Pole slip protection PSPPPAM (78)......................................................452
Identification.................................................................................... 452
Application....................................................................................... 453
Setting guidelines............................................................................ 455
Setting example for line application............................................457
Setting example for generator application.................................. 462
Out-of-step protection OOSPPAM (78)................................................ 467
Identification.................................................................................... 467
Application....................................................................................... 467
Setting guidelines............................................................................ 470
Automatic switch onto fault logic ZCVPSOF ........................................474
Identification.................................................................................... 474
Application....................................................................................... 474
Setting guidelines............................................................................ 475
Phase preference logic PPLPHIZ......................................................... 476
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