Thermal overload protection, two time constants TRPTTR ........95
Checking operate and reset values
........................................95
Completing the test................................................................ 96
Breaker failure protection, phase segregated activation and
output CCRBRF...........................................................................96
Checking the phase current operate value,
IP>
..................... 96
Checking the residual (earth fault) current operate value
IN>
set below
IP>
................................................................... 97
Checking the re-trip and back-up times..................................97
Verifying the re-trip mode....................................................... 97
Verifying the back-up trip mode..............................................98
Verifying instantaneous back-up trip at CB faulty condition... 99
Verifying the function mode
Current/Contact
......................... 99
Completing the test.............................................................. 100
Breaker failure protection, single phase version CCSRBRF .... 100
Checking the phase current operate value IP>
.................... 101
Checking the re-trip and back-up times................................101
Verifying the re-trip mode..................................................... 102
Verifying the back-up trip mode............................................103
Verifying instantaneous back-up trip at “CB faulty”
condition .............................................................................. 103
Verifying the case
FunctionMode
=
Contact
.........................103
Verifying the function mode
Curr&Cont Check
.....................104
Completing the test.............................................................. 105
Directional underpower protection GUPPDUP ......................... 105
Verifying the settings............................................................ 105
Completing the test.............................................................. 107
Directional overpower protection GOPPDOP ...........................107
Verifying the settings............................................................ 107
Completing the test.............................................................. 108
Capacitor bank protection CBPGAPC....................................... 108
Verifying the settings and operation of the function............. 108
Completing the test.............................................................. 112
Voltage protection...........................................................................112
Two step undervoltage protection UV2PTUV ...........................112
Verifying the settings............................................................ 112
Completing the test.............................................................. 114
Two step overvoltage protection OV2PTOV .............................114
Verifying the settings............................................................ 114
Extended testing...................................................................115
Completing the test.............................................................. 115
Two step residual overvoltage protection ROV2PTOV ............ 115
Verifying the settings............................................................ 115
Completing the test.............................................................. 116
Table of contents
4 Busbar protection REB670 2.2 IEC
Commissioning manual