ABB Relion 670 Series Commissioning Manual page 11

11.4.13.1 Activating ZCVPSOF externally............................................................................................156
11.4.13.2 Initiating ZCVPSOF automatically and setting mode to impedance...........................156
11.4.13.3 Initiating ZCVPSOF automatically and setting mode to UILevel .................................156
11.4.13.4 Completing the test...............................................................................................................156
11.4.14 Phase preference logic PPLPHIZ ............................................................................................156
11.4.14.1 Completing the test............................................................................................................... 157
11.4.15 Phase preference logic PPL2PHIZ...........................................................................................157
11.4.16 Completing the test.................................................................................................................. 158
11.4.17 Under impedance protection for Generator ZGVPDIS.......................................................158
11.4.17.1 Verifying the settings............................................................................................................ 158
11.4.17.2 Completing the test............................................................................................................... 161
11.5 Current protection......................................................................................................................... 161
11.5.1 Instantaneous phase overcurrent protection 3-phase output PHPIOC .........................161
11.5.1.1 Measuring the operate limit of set values.........................................................................162
11.5.1.2 Completing the test...............................................................................................................162
11.5.2 Directional phase overcurrent protection, four steps OC4PTOC.................................... 162
11.5.2.1 Verifying the settings............................................................................................................ 162
11.5.2.2 Completing the test...............................................................................................................163
11.5.3 Instantaneous residual overcurrent protection EFPIOC ...................................................163
11.5.3.1 Measuring the operate limit of set values........................................................................ 164
11.5.3.2 Completing the test...............................................................................................................164
11.5.4 Four step residual overcurrent protection, (Zero sequence or negative sequence
directionality) EF4PTOC ..........................................................................................................164
11.5.4.1 Four step directional earth fault protection.................................................................... 164
11.5.4.2 Four step non-directional earth fault protection............................................................ 165
11.5.4.3 Completing the test...............................................................................................................165
11.5.5 Four step negative sequence overcurrent protection NS4PTOC ................................... 165
11.5.5.1 Completing the test...............................................................................................................166
11.5.6 Sensitive directional residual overcurrent and power protection SDEPSDE ............... 166
11.5.6.1 Measuring the operate and time limit for set values...................................................... 167
11.5.6.2 Completing the test............................................................................................................... 171
11.5.7 Thermal overload protection, one time constant, Celsius/Fahrenheit
LCPTTR/LFPTTR......................................................................................................................... 171
11.5.7.1 Measuring the operate and time limit of set values........................................................ 171
11.5.7.2 Completing the test............................................................................................................... 172
11.5.8 Thermal overload protection, two time constants TRPTTR ............................................. 172
11.5.8.1 Checking operate and reset values..................................................................................... 172
11.5.8.2 Completing the test............................................................................................................... 173
11.5.9 Breaker failure protection, phase segregated activation and output CCRBRF............ 173
11.5.9.1 Checking the phase current operate value,
11.5.9.2 Checking the residual (earth fault) current operate value
11.5.9.3 Checking the re-trip and back-up times............................................................................ 174
11.5.9.4 Verifying the re-trip mode.................................................................................................... 174
11.5.9.5 Verifying the back-up trip mode......................................................................................... 174
11.5.9.6 Verifying instantaneous back-up trip at CB faulty condition........................................ 175
11.5.9.7 Verifying the case
Transformer protection RET670
Commissioning manual
FunctionMode = CB Pos .......................................................................175
© Copyright 2017 ABB. All rights reserved
IP> ................................................................ 173
IN> set below IP> .............173
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