ABB REC670 Applications Manual page 17

Bay control REC670 2.2 IEC
Application manual
Application................................................................................. 429
Setting guidelines...................................................................... 429
Single command, 16 signals SINGLECMD.................................... 429
Identification.............................................................................. 429
Application................................................................................. 429
Setting guidelines...................................................................... 431
Section 15 Scheme communication............................................... 433
Scheme communication logic for distance or overcurrent
protection ZCPSCH........................................................................ 433
Identification.............................................................................. 433
Application................................................................................. 433
Blocking schemes................................................................ 434
Delta blocking scheme......................................................... 435
Permissive schemes............................................................ 436
Intertrip scheme....................................................................438
Setting guidelines...................................................................... 439
Blocking scheme.................................................................. 439
Delta blocking scheme......................................................... 439
Permissive underreaching scheme...................................... 440
Permissive overreaching scheme........................................ 440
Unblocking scheme.............................................................. 440
Intertrip scheme....................................................................440
Current reversal and Weak-end infeed logic for distance
protection 3-phase ZCRWPSCH ................................................... 441
Identification.............................................................................. 441
Application................................................................................. 441
Current reversal logic........................................................... 441
Weak-end infeed logic..........................................................442
Setting guidelines...................................................................... 443
Current reversal logic........................................................... 443
Weak-end infeed logic..........................................................443
Local acceleration logic ZCLCPSCH..............................................444
Identification.............................................................................. 444
Application................................................................................. 444
Setting guidelines...................................................................... 444
Scheme communication logic for residual overcurrent
protection ECPSCH .......................................................................445
Identification.............................................................................. 445
Application................................................................................. 445
Setting guidelines...................................................................... 446
Current reversal and weak-end infeed logic for residual
overcurrent protection ECRWPSCH...............................................447
Identification.............................................................................. 447
Table of contents
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