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1MRK 505 372-UEN Rev. K
9.8.4.2
9.8.4.3
Section 10
Testing functionality by secondary injection............................................71
10.1
Testing disturbance report................................................................................................... 71
10.1.1
Introduction........................................................................................................................71
10.1.2
Disturbance report settings............................................................................................... 71
10.1.3
Disturbance recorder (DR)................................................................................................ 71
10.1.4
Event recorder (ER) and Event list (EL)............................................................................ 72
10.2
Identifying the function to test in the technical reference manual .......................................72
10.3
Differential protection.......................................................................................................... 72
10.3.1
Busbar differential protection.............................................................................................72
10.3.1.1
10.3.1.2
10.3.1.3
10.3.1.4
10.3.1.5
10.3.1.6
10.3.1.7
10.4
Current protection................................................................................................................77
10.4.1
Directional phase overcurrent protection, four steps OC4PTOC ..................................... 77
10.4.1.1
10.4.1.2
10.4.1.3
10.4.2
Four step single phase overcurrent protection PH4SPTOC..............................................79
10.4.2.1
10.4.2.2
10.4.2.3
10.4.3
directionality) EF4PTOC ...................................................................................................80
10.4.3.1
10.4.3.2
10.4.3.3
10.4.3.4
10.4.4
Four step negative sequence overcurrent protection NS4PTOC ..................................... 81
10.4.4.1
10.4.4.2
10.4.5
Thermal overload protection, two time constants TRPTTR ..............................................82
10.4.5.1
10.4.5.2
10.4.6
Breaker failure protection, phase segregated activation and output CCRBRF ................ 83
10.4.6.1
10.4.6.2
10.4.6.3
10.4.6.4
10.4.6.5
10.4.6.6
Busbar protection REB670
Commissioning manual
Undo forcing by using LHMI.........................................................................................69
Undo forcing by using PCM600................................................................................... 69
General........................................................................................................................ 72
Operation of the differential protection from CTx input................................................ 73
Stability of the busbar differential protection................................................................ 74
Operation of fast open CT detection algorithm............................................................ 76
Operation of slow open CT detection algorithm........................................................... 76
Completing the test...................................................................................................... 77
Check of trip circuits and circuit breakers ................................................................... 77
Function revision history.............................................................................................. 78
Verifying the settings.................................................................................................... 78
Completing the test...................................................................................................... 79
Function revision history.............................................................................................. 79
Verifying the settings.................................................................................................... 79
Completing the test...................................................................................................... 80
Function revision history.............................................................................................. 80
Four step directional earth fault protection ..................................................................80
Four step non-directional earth fault protection ...........................................................81
Completing the test...................................................................................................... 81
Function revision history.............................................................................................. 81
Completing the test...................................................................................................... 82
Checking operate and reset values..............................................................................83
Completing the test...................................................................................................... 83
Function revision history.............................................................................................. 84
Checking the phase current operate value, IP> .......................................................... 84
Checking the re-trip and back-up times....................................................................... 84
Verifying the re-trip mode............................................................................................. 85
Verifying the back-up trip mode ...................................................................................85
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