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Sensitive directional residual overcurrent and power protection
SDEPSDE (67N)................................................................................53
Measuring the operate and time limit for set values.....................53
Completing the test.......................................................................58
Thermal overload protection, one time constant, Fahrenheit/
Celsius LFPTTR/LCPTTR (26)..........................................................58
Testing the protection without external temperature
compensation (NonComp)............................................................58
Completing the test.......................................................................59
Breaker failure protection, phase segregated activation and
output CCRBRF (50BF).....................................................................59
Checking the phase current operate value,
Checking the residual (ground fault) current operate value
Pickup_N set below Pickup_PH....................................................60
Checking the re-trip and back-up times........................................60
Verifying the re-trip mode............................................................. 61
Verifying the back-up trip mode....................................................62
Verifying the case
RetripMode = Contact.....................................63
Current&Contact.............................. 63
Completing the test.......................................................................64
Breaker failure protection, phase segregated activation and
output CSPRBRF (50BF)...................................................................64
below IP>......................................................................................65
Checking the re-trip and back-up times........................................65
Verifying the
RetripMode..............................................................66
RetripMode = No CB Pos Check.................... 67
Current&Contact.............................. 67
Checking the case with fault current below set value
BlkCont.........................................................................................67
Checking the phase current operate value,
Completing the test.......................................................................68
Stub protection STBPTOC (50STB).................................................. 68
Pole discrepancy protection CCRPLD (52PD).................................. 70
Broken conductor check BRCPTOC (46).......................................... 70
Measuring the operate and time limit of set values...................... 71
Table of contents
3
Commissioning manual