ABB RED670 Commissioning Manual page 12

Line differential protection
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11.5.5.2
11.5.6
Sensitive directional residual overcurrent and power protection SDEPSDE (67N)...............166
11.5.6.1
11.5.6.2
11.5.7
Thermal overload protection, one time constant, Fahrenheit/Celsius LFPTTR/
LCPTTR (26)......................................................................................................................... 171
11.5.7.1
11.5.7.2
11.5.8
Breaker failure protection, phase segregated activation and output CCRBRF (50BF) ........ 172
11.5.8.1
11.5.8.2
11.5.8.3
11.5.8.4
11.5.8.5
11.5.8.6
11.5.8.7
11.5.8.8
11.5.8.9
11.5.8.10
11.5.8.11
11.5.8.12
11.5.8.13
11.5.8.14
11.5.8.15
11.5.9
Stub protection STBPTOC (50STB)......................................................................................178
11.5.9.1
11.5.9.2
11.5.9.3
11.5.10
Overcurrent protection with binary release BRPTOC............................................................179
11.5.10.1
11.5.10.2
11.5.10.3
11.5.11
Pole discrepancy protection CCPDSC (52PD)......................................................................180
11.5.11.1
11.5.11.2
11.5.12
Directional underpower protection GUPPDUP (37).............................................................. 181
11.5.12.1
11.5.12.2
11.5.13
Directional overpower protection GOPPDOP (32)................................................................ 182
11.5.13.1
11.5.13.2
11.5.14
Broken conductor check BRCPTOC (46)..............................................................................183
11.5.14.1
6
Completing the test.......................................................................................................... 166
Measuring the trip and time limit for set values................................................................ 166
Completing the test.......................................................................................................... 171
Measuring the trip and time limit of set values................................................................. 171
Completing the test.......................................................................................................... 172
Function revision history...................................................................................................172
Checking the phase current trip value, Pickup_PH ......................................................... 173
Checking the residual (ground fault) current trip value Pickup_N set below Pickup_PH 173
Checking the re-trip and back-up times............................................................................173
Verifying the re-trip mode................................................................................................. 174
Verifying the back-up trip mode .......................................................................................174
Verifying instantaneous back-up trip at CB faulty condition............................................. 175
Verifying the case FunctionMode = CB Pos.....................................................................175
Verifying the case RetripMode = Contact.........................................................................176
Verifying the caseFunctionMode = Current or CB Pos.....................................................176
Verifying the external start signal has timed out...............................................................177
Verifying that backup signal is released when STALARM is reset................................... 177
Test of FollowStart&Mode behaviour................................................................................177
Test of FollowStart behaviour........................................................................................... 177
Completing the test.......................................................................................................... 178
Function revision history...................................................................................................178
Measuring the trip limit of set values................................................................................ 178
Completing the test.......................................................................................................... 179
Function revision history...................................................................................................179
Measuring the operate limit of set values.........................................................................179
Completing the test.......................................................................................................... 180
Verifying the settings........................................................................................................ 180
Completing the test.......................................................................................................... 181
Verifying the settings........................................................................................................ 181
Completing the test.......................................................................................................... 182
Verifying the settings........................................................................................................ 183
Completing the test.......................................................................................................... 183
Function revision history...................................................................................................183
© 2017 - 2021 Hitachi Power Grids. All rights reserved
1MRK 505 378-UUS Rev. J
Line differential protection RED670
Commissioning manual

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