ABB Relion 670 Series Commissioning Manual page 12

Table of contents
11.6 Unbalance protection.............................................................................................................. 136
11.6.1 Shunt capacitor cascading failure protection SCCFPVOC (51 V).........................................136
11.6.1.1
11.6.1.2
11.6.1.3
11.6.2 Current unbalance protection of SCB, SCUCPTOC..............................................................138
11.6.2.1
11.6.2.2
11.6.3 Phase voltage differential based capacitor bank unbalanced protection, SCPDPTOV87V.. 142
11.6.3.1
11.6.3.2
11.6.4 Voltage unbalance protection of shunt capacitor bank, SCUVPTOV.................................... 148
11.6.4.1
11.6.4.2
11.7 Frequency protection...............................................................................................................150
11.7.1 Underfrequency protection SAPTUF (81)............................................................................. 150
11.7.1.1
11.7.1.2
11.7.2 Overfrequency protection SAPTOF (81)............................................................................... 151
11.7.2.1
11.7.2.2
11.7.3 Rate-of-change frequency protection SAPFRC (81)............................................................. 152
11.7.3.1
11.7.3.2
11.7.4 Frequency time accumulation protection function FTAQFVR (81A) .....................................153
11.7.4.1
11.7.4.2
11.8 Multipurpose protection........................................................................................................... 155
11.8.1 Function revision history........................................................................................................155
11.8.2 General current and voltage protection CVGAPC.................................................................155
11.8.2.1
11.8.2.2
11.8.2.3
11.8.2.4
11.8.2.5
11.8.2.6
11.9 Secondary system supervision................................................................................................158
11.9.1 Current circuit supervision CCSSPVC (87) .......................................................................... 158
11.9.1.1
11.9.1.2
11.9.2 Fuse failure supervision FUFSPVC.......................................................................................158
11.9.2.1
11.9.2.2
6
Function revision history...................................................................................................136
Verifying the signals and settings..................................................................................... 136
Completing the test.......................................................................................................... 138
Verifying the signals and settings..................................................................................... 138
Completing the test.......................................................................................................... 142
Verifying the signals and settings..................................................................................... 142
Completing the test.......................................................................................................... 148
Verifying the signals and settings..................................................................................... 148
Completing the test.......................................................................................................... 150
Verifying the settings........................................................................................................ 150
Completing the test.......................................................................................................... 151
Verifying the settings........................................................................................................ 151
Completing the test.......................................................................................................... 152
Verifying the settings........................................................................................................ 152
Completing the test.......................................................................................................... 153
Verifying the settings........................................................................................................ 153
Completing the test.......................................................................................................... 154
Built-in overcurrent feature (non-directional).................................................................... 155
Overcurrent feature with current restraint.........................................................................156
Overcurrent feature with voltage restraint........................................................................ 156
Overcurrent feature with directionality..............................................................................157
Over/Undervoltage feature............................................................................................... 157
Completing the test.......................................................................................................... 157
Verifying the settings........................................................................................................ 158
Completing the test.......................................................................................................... 158
Checking that the binary inputs and outputs trip as expected .........................................158
Measuring the trip value for the negative sequence function .......................................... 159
© 2017 - 2021 Hitachi Power Grids. All rights reserved
1MRK 511 403-UUS Rev. K
Bay control REC670
Commissioning manual