Hitachi RED670 Commissioning Manual page 11

1MRK 505 378-UEN Rev. K
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 ...................................................................................150
11.4.14.1
11.4.14.2
11.4.14.3
11.4.15 Phase preference logic PPL2PHIZ..................................................................................152
11.4.15.1
11.4.15.2
11.4.15.3
11.5 Current protection..............................................................................................................153
11.5.1 Instantaneous phase overcurrent protection 3-phase output PHPIOC .......................... 153
11.5.1.1
11.5.1.2
11.5.2 Directional phase overcurrent protection, four steps OC4PTOC ................................... 154
11.5.2.1
11.5.2.2
11.5.2.3
11.5.3 Instantaneous residual overcurrent protection EFPIOC .................................................155
11.5.3.1
11.5.3.2
11.5.4 Four step residual overcurrent protection, (Zero sequence or negative sequence
directionality) EF4PTOC .................................................................................................156
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 ................................... 157
11.5.5.1
11.5.5.2
11.5.6 Sensitive directional residual overcurrent and power protection SDEPSDE ..................158
11.5.6.1
11.5.6.2
11.5.7 Thermal overload protection, one time constant, Celsius/Fahrenheit LCPTTR/LFPTTR163
11.5.7.1
11.5.7.2
11.5.8 Breaker failure protection, phase segregated activation and output CCRBRF .............. 164
11.5.8.1
11.5.8.2
11.5.8.3
11.5.8.4
11.5.8.5
11.5.8.6
Line differential protection RED670
Commissioning manual
Function revision history............................................................................................ 149
Activating ZCVPSOF externally ................................................................................ 150
Initiating ZCVPSOF automatically and setting mode to impedance ..........................150
Initiating ZCVPSOF automatically and setting mode to UILevel ............................... 150
Completing the test.................................................................................................... 150
Function revision history............................................................................................ 150
Verifying the signals and settings...............................................................................151
Completing the test.................................................................................................... 151
Function revision history............................................................................................ 152
Verifying the signals and settings...............................................................................152
Completing the test.................................................................................................... 153
Measuring the operate limit of set values...................................................................153
Completing the test.................................................................................................... 153
Function revision history............................................................................................ 154
Verifying the settings.................................................................................................. 154
Completing the test.................................................................................................... 155
Measuring the operate limit of set values...................................................................155
Completing the test.................................................................................................... 156
Function revision history............................................................................................ 156
Four step directional earth fault protection ................................................................156
Four step non-directional earth fault protection .........................................................157
Completing the test.................................................................................................... 157
Function revision history............................................................................................ 157
Completing the test.................................................................................................... 158
Measuring the operate and time limit for set values...................................................159
Completing the test.................................................................................................... 163
Measuring the operate and time limit of set values....................................................163
Completing the test.................................................................................................... 164
Function revision history............................................................................................ 164
Checking the phase current operate value, IP> ........................................................ 164
Checking the residual (earth fault) current operate value IN> set below IP> ............165
Checking the re-trip and back-up times..................................................................... 165
Verifying the re-trip mode........................................................................................... 165
Verifying the back-up trip mode .................................................................................166
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