Hitachi Relion 670 Series Commissioning Manual page 11

1MRK506371-UUS Rev. M
11.4.13 Automatic switch onto fault logic ZCVPSOF......................................................................... 144
11.4.13.1
11.4.13.2
11.4.13.3
11.4.13.4
11.4.13.5
11.4.14 Phase preference logic PPLPHIZ .........................................................................................146
11.4.14.1
11.4.14.2
11.4.14.3
11.4.15 Phase preference logic PPL2PHIZ........................................................................................147
11.4.15.1
11.4.15.2
11.4.15.3
11.5 Current protection....................................................................................................................148
11.5.1 Instantaneous phase overcurrent protection 3-phase output PHPIOC (50)..........................148
11.5.1.1
11.5.1.2
11.5.2 Directional phase overcurrent protection, four steps OC4PTOC (51_67) ............................ 149
11.5.2.1
11.5.2.2
11.5.2.3
11.5.3 Instantaneous residual overcurrent protection EFPIOC (50N)..............................................151
11.5.3.1
11.5.3.2
11.5.4 Four step residual overcurrent protection, (Zero sequence or negative sequence
directionality) EF4PTOC (51N/67N)...................................................................................... 151
11.5.4.1
11.5.4.2
11.5.4.3
11.5.4.4
11.5.5 Four step negative sequence overcurrent protection NS4PTOC (46I2)................................153
11.5.5.1
11.5.5.2
11.5.6 Sensitive directional residual overcurrent and power protection SDEPSDE (67N)...............154
11.5.6.1
11.5.6.2
11.5.7 Thermal overload protection, one time constant, Fahrenheit/Celsius LFPTTR/
LCPTTR (26)......................................................................................................................... 159
11.5.7.1
11.5.7.2
11.5.8 Breaker failure protection, phase segregated activation and output CCRBRF (50BF) ........ 160
11.5.8.1
Line distance protection REL670
Commissioning manual
Function revision history...................................................................................................144
Activating ZCVPSOF externally ...................................................................................... 145
Initiating ZCVPSOF automatically and setting mode to impedance ................................145
Initiating ZCVPSOF automatically and setting mode to VILevel ..................................... 145
Completing the test.......................................................................................................... 145
Function revision history...................................................................................................146
Verifying the signals and settings..................................................................................... 146
Completing the test.......................................................................................................... 147
Function revision history...................................................................................................147
Verifying the signals and settings..................................................................................... 147
Completing the test.......................................................................................................... 148
Measuring the trip limit of set values................................................................................ 149
Completing the test.......................................................................................................... 149
Function revision history...................................................................................................149
Verifying the settings........................................................................................................ 150
Completing the test.......................................................................................................... 151
Measuring the trip limit of set values................................................................................ 151
Completing the test.......................................................................................................... 151
Function revision history...................................................................................................152
Four step directional ground fault protection ................................................................... 152
Four step non-directional ground fault protection ............................................................153
Completing the test.......................................................................................................... 153
Function revision history...................................................................................................153
Completing the test.......................................................................................................... 154
Measuring the trip and time limit for set values................................................................ 155
Completing the test.......................................................................................................... 159
Measuring the trip and time limit of set values................................................................. 159
Completing the test.......................................................................................................... 160
Function revision history...................................................................................................160
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