ABB Relion 670 Series Commissioning Manual page 12

Table of contents
11.5.3.2
11.5.4 Four step residual overcurrent protection, (Zero sequence or negative sequence
directionality) EF4PTOC (51N/67N)...................................................................................... 170
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 (46I2)................................172
11.5.5.1
11.5.5.2
11.5.6 Sensitive directional residual overcurrent and power protection SDEPSDE (67N)...............173
11.5.6.1
11.5.6.2
11.5.7 Thermal overload protection, one time constant, Fahrenheit/Celsius LFPTTR/
LCPTTR (26)......................................................................................................................... 178
11.5.7.1
11.5.7.2
11.5.8 Thermal overload protection, two time constants TRPTTR (49)........................................... 179
11.5.8.1
11.5.8.2
11.5.9 Breaker failure protection, phase segregated activation and output CCRBRF (50BF) ........ 180
11.5.9.1
11.5.9.2
11.5.9.3
11.5.9.4
11.5.9.5
11.5.9.6
11.5.9.7
11.5.9.8
11.5.9.9
11.5.9.10
11.5.9.11
11.5.9.12
11.5.9.13
11.5.9.14
11.5.9.15
11.5.10 Stub protection STBPTOC (50STB)......................................................................................185
11.5.10.1
11.5.10.2
11.5.10.3
11.5.11 Overcurrent protection with binary release BRPTOC............................................................186
11.5.11.1
11.5.11.2
6
Completing the test.......................................................................................................... 170
Function revision history...................................................................................................171
Four step directional ground fault protection ................................................................... 171
Four step non-directional ground fault protection ............................................................172
Completing the test.......................................................................................................... 172
Function revision history...................................................................................................172
Completing the test.......................................................................................................... 173
Measuring the trip and time limit for set values................................................................ 174
Completing the test.......................................................................................................... 178
Measuring the trip and time limit of set values................................................................. 178
Completing the test.......................................................................................................... 179
Checking trip and reset values......................................................................................... 179
Completing the test.......................................................................................................... 180
Function revision history...................................................................................................180
Checking the phase current trip value, Pickup_PH ......................................................... 181
Checking the residual (ground fault) current trip value Pickup_N set below Pickup_PH 181
Checking the re-trip and back-up times............................................................................181
Verifying the re-trip mode................................................................................................. 181
Verifying the back-up trip mode .......................................................................................182
Verifying instantaneous back-up trip at CB faulty condition............................................. 183
Verifying the case FunctionMode = CB Pos.....................................................................183
Verifying the case RetripMode = Contact.........................................................................183
Verifying the caseFunctionMode = Current or CB Pos.....................................................184
Verifying the external start signal has timed out...............................................................184
Verifying that backup signal is released when STALARM is reset................................... 185
Test of FollowStart&Mode behaviour................................................................................185
Test of FollowStart behaviour........................................................................................... 185
Completing the test.......................................................................................................... 185
Function revision history...................................................................................................186
Measuring the trip limit of set values................................................................................ 186
Completing the test.......................................................................................................... 186
Function revision history...................................................................................................187
Measuring the operate limit of set values.........................................................................187
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1MRK 504 165-UUS Rev. J
Transformer protection RET670
Commissioning manual