ABB Relion 670 Series Commissioning Manual page 14

Table of contents
11.6.5.1
11.6.5.2
11.6.5.3
11.6.5.4
11.6.5.5
11.6.5.6
11.6.6 Loss of voltage check LOVPTUV (27)...................................................................................213
11.6.6.1
11.6.6.2
11.7 Unbalance protection.............................................................................................................. 214
11.7.1 Shunt capacitor cascading failure protection SCCFPVOC (51 V).........................................214
11.7.1.1
11.7.1.2
11.7.1.3
11.7.2 Current unbalance protection of SCB, SCUCPTOC..............................................................216
11.7.2.1
11.7.2.2
11.7.3 Phase voltage differential based capacitor bank unbalanced protection, SCPDPTOV87V.. 220
11.7.3.1
11.7.3.2
11.7.4 Voltage unbalance protection of shunt capacitor bank, SCUVPTOV.................................... 226
11.7.4.1
11.7.4.2
11.8 Frequency protection...............................................................................................................228
11.8.1 Underfrequency protection SAPTUF (81)............................................................................. 228
11.8.1.1
11.8.1.2
11.8.2 Overfrequency protection SAPTOF (81)............................................................................... 229
11.8.2.1
11.8.2.2
11.8.3 Rate-of-change frequency protection SAPFRC (81)............................................................. 230
11.8.3.1
11.8.3.2
11.9 Multipurpose protection........................................................................................................... 231
11.9.1 Function revision history........................................................................................................231
11.9.2 General current and voltage protection CVGAPC.................................................................231
11.9.2.1
11.9.2.2
11.9.2.3
11.9.2.4
11.9.2.5
11.9.2.6
11.10 Secondary system supervision................................................................................................234
8
Function revision history...................................................................................................209
Check of undervoltage levels........................................................................................... 209
Check of voltage differential trip and alarm levels............................................................ 211
Check of trip and trip reset timers.................................................................................... 212
Final adjustment of compensation for VT ratio differences ............................................. 213
Completing the test.......................................................................................................... 213
Measuring the trip limit of set values................................................................................ 213
Completing the test.......................................................................................................... 214
Function revision history...................................................................................................214
Verifying the signals and settings..................................................................................... 214
Completing the test.......................................................................................................... 216
Verifying the signals and settings..................................................................................... 216
Completing the test.......................................................................................................... 220
Verifying the signals and settings..................................................................................... 220
Completing the test.......................................................................................................... 226
Verifying the signals and settings..................................................................................... 226
Completing the test.......................................................................................................... 228
Verifying the settings........................................................................................................ 228
Completing the test.......................................................................................................... 229
Verifying the settings........................................................................................................ 229
Completing the test.......................................................................................................... 230
Verifying the settings........................................................................................................ 230
Completing the test.......................................................................................................... 231
Built-in overcurrent feature (non-directional).................................................................... 232
Overcurrent feature with current restraint.........................................................................232
Overcurrent feature with voltage restraint........................................................................ 232
Overcurrent feature with directionality..............................................................................233
Over/Undervoltage feature............................................................................................... 233
Completing the test.......................................................................................................... 234
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1MRK 504 165-UUS Rev. J
Transformer protection RET670
Commissioning manual