
10.4.4.1 Function revision history.....................................................................................................80
10.4.4.2 Completing the test............................................................................................................ 81
10.4.5 Thermal overload protection, two time constants TRPTTR (49)............................................. 82
10.4.5.1 Checking trip and reset values...........................................................................................82
10.4.5.2 Completing the test............................................................................................................ 82
10.4.6 Breaker failure protection, phase segregated activation and output CCRBRF (50BF) .......... 83
10.4.6.1 Function revision history.....................................................................................................83
10.4.6.2 Checking the phase current trip value, Pickup_PH ...........................................................83
10.4.6.3 Checking the residual (ground fault) current trip value Pickup_N set below Pickup_PH .. 84
10.4.6.4 Checking the re-trip and back-up times..............................................................................84
10.4.6.5 Verifying the re-trip mode................................................................................................... 84
10.4.6.6 Verifying the back-up trip mode .........................................................................................85
10.4.6.7 Verifying instantaneous back-up trip at CB faulty condition............................................... 86
10.4.6.8 Verifying the case FunctionMode = CB Pos.......................................................................86
10.4.6.9 Verifying the case RetripMode = Contact...........................................................................86
10.4.6.10 Verifying the caseFunctionMode = Current or CB Pos.......................................................86
10.4.6.11 Verifying the external start signal has timed out.................................................................87
10.4.6.12 Verifying that backup signal is released when STALARM is reset..................................... 87
10.4.6.13 Test of FollowStart&Mode behaviour..................................................................................88
10.4.6.14 Test of FollowStart behaviour.............................................................................................88
10.4.6.15 Completing the test............................................................................................................ 88
10.4.7 Breaker failure protection, single phase version CCSRBRF (50BF)....................................... 88
10.4.7.1 Function revision history.....................................................................................................89
10.4.7.2 Checking the phase current operate value Pickup_PH......................................................89
10.4.7.3 Checking the re-trip and back-up times..............................................................................90
10.4.7.4 Verifying the re-trip mode................................................................................................... 90
10.4.7.5 Verifying the back-up trip mode..........................................................................................91
10.4.7.6 Verifying instantaneous back-up trip at CB faulty condition .............................................. 91
10.4.7.7 Verifying the case FunctionMode = CB Pos.......................................................................91
10.4.7.8 Verifying the case FunctionMode = Current or CB Pos......................................................91
10.4.7.9 Verifying the external start signal has timed out.................................................................92
10.4.7.10 Verifying that backup signal is released when STALARM is reset..................................... 92
10.4.7.11 Test of FollowStart&Mode behaviour..................................................................................93
10.4.7.12 Test of FollowStart behaviour.............................................................................................93
10.4.8 Completing the test................................................................................................................. 93
10.4.9 Directional underpower protection GUPPDUP (37)................................................................ 93
10.4.9.1 Verifying the settings.......................................................................................................... 93
10.4.9.2 Completing the test............................................................................................................ 95
10.4.10 Directional overpower protection GOPPDOP (32).................................................................. 95
10.4.10.1 Verifying the settings.......................................................................................................... 95
10.4.10.2 Completing the test............................................................................................................ 95
10.4.11 Capacitor bank protection CBPGAPC.....................................................................................96
10.4.11.1 Verifying the settings and operation of the function............................................................96
Table of contents 1MRK 505 372-UUS Rev. K
4Busbar protection REB670
Commissioning manual
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