ABB REB670 - Page 10

Application....................................................................................... 175
Setting guidelines
............................................................................ 177
Settings for each step.................................................................178
Setting example
..........................................................................182
Four step single phase overcurrent protection PH4SPTOC (51)..........187
Identification.................................................................................... 187
Application....................................................................................... 187
Setting guidelines............................................................................ 188
Settings for each step (x = 1-4).................................................. 189
Second harmonic restrain...........................................................191
Directional residual overcurrent protection, four steps EF4PTOC
(51N/67N)............................................................................................. 197
Identification.................................................................................... 197
Setting guidelines............................................................................ 197
Common settings for all steps.................................................... 198
2nd harmonic restrain.................................................................199
Parallel transformer inrush current logic.....................................200
Switch onto fault logic.................................................................201
Settings for each step (x = 1, 2, 3 and 4)................................... 202
Four step directional negative phase sequence overcurrent
protection NS4PTOC (46I2)..................................................................204
Identification.................................................................................... 204
Application....................................................................................... 204
Setting guidelines............................................................................ 206
Settings for each step ................................................................207
Common settings for all steps.................................................... 210
Thermal overload protection, two time constants TRPTTR (49)...........211
Identification.................................................................................... 211
Application....................................................................................... 211
Setting guideline.............................................................................. 212
Breaker failure protection CCRBRF(50BF)...........................................215
Identification.................................................................................... 215
Application....................................................................................... 215
Setting guidelines............................................................................ 215
Breaker failure protection, single phase version CCSRBRF (50BF).... 219
Identification.................................................................................... 219
Application....................................................................................... 219
Setting guidelines............................................................................ 219
Directional underpower protection GUPPDUP (37)..............................222
Identification.................................................................................... 222
Table of contents
4 Busbar protection REB670 2.2 ANSI
Application manual