ABB RET670 Commissioning Manual page 11

10.4.15 Under impedance protection for Generator ZGVPDIS..............................................................134
10.4.15.1 Verifying the settings...................................................................................................................134
10.4.15.2 Completing the test......................................................................................................................137
10.5 Current protection................................................................................................................................137
10.5.1 Instantaneous phase overcurrent protection 3-phase output PHPIOC (50)........................137
10.5.1.1 Measuring the trip limit of set values....................................................................................... 138
10.5.1.2 Completing the test..................................................................................................................... 138
10.5.2 Four step phase overcurrent protection 3-phase output OC4PTOC (51_67).......................138
10.5.2.1 Verifying the settings...................................................................................................................138
10.5.2.2 Completing the test..................................................................................................................... 139
10.5.3 Instantaneous residual overcurrent protection EFPIOC (50N)...............................................139
10.5.3.1 Measuring the trip limit of set values.......................................................................................140
10.5.3.2 Completing the test..................................................................................................................... 140
10.5.4 Four step residual overcurrent protection, (Zero sequence or negative sequence
directionality) EF4PTOC (51N/67N)............................................................................................. 140
10.5.4.1 Four step directional ground fault protection....................................................................... 140
10.5.4.2 Four step non-directional ground fault protection................................................................141
10.5.4.3 Completing the test......................................................................................................................141
10.5.5 Four step negative sequence overcurrent protection NS4PTOC (46I2)................................141
10.5.5.1 Completing the test..................................................................................................................... 142
10.5.6 Sensitive directional residual overcurrent and power protection SDEPSDE (67N)............ 142
10.5.6.1 Measuring the trip and time limit for set values.................................................................... 142
10.5.6.2 Completing the test..................................................................................................................... 147
10.5.7 Thermal overload protection, one time constant, Fahrenheit/Celsius LFPTTR/
LCPTTR (26)....................................................................................................................................... 148
10.5.7.1 Measuring the trip and time limit of set values......................................................................148
10.5.7.2 Completing the test..................................................................................................................... 148
10.5.8 Thermal overload protection, two time constants TRPTTR (49)............................................149
10.5.8.1 Checking trip and reset values...................................................................................................149
10.5.8.2 Completing the test..................................................................................................................... 149
10.5.9 Breaker failure protection, phase segregated activation and output CCRBRF (50BF)..... 150
10.5.9.1 Checking the phase current trip value,
10.5.9.2 Checking the residual (ground fault) current trip value
set below
10.5.9.3 Checking the re-trip and back-up times.................................................................................. 150
10.5.9.4 Verifying the re-trip mode........................................................................................................... 151
10.5.9.5 Verifying the back-up trip mode................................................................................................ 151
10.5.9.6 Verifying instantaneous back-up trip at CB faulty condition.............................................. 152
10.5.9.7 Verifying the case
10.5.9.8 Verifying the function mode
10.5.9.9 Completing the test..................................................................................................................... 154
10.5.10 Pole discrepancy protection CCPDSC (52PD).............................................................................154
10.5.10.1 Verifying the settings...................................................................................................................154
Commissioning manual
Pickup_PH .................................................................................................................... 150
RetripMode = Contact ................................................................................ 153
Current&Contact .......................................................................153
Pickup_PH ................................................................ 150
Pickup_N
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