ABB Relion 670 Series Commissioning Manual page 13

11.6.5.1 Check of undervoltage levels............................................................................................... 194
11.6.5.2 Check of voltage differential trip and alarm levels..........................................................196
11.6.5.3 Check of trip and trip reset timers..................................................................................... 197
11.6.5.4 Final adjustment of compensation for VT ratio differences ........................................198
11.6.5.5 Completing the test...............................................................................................................198
11.6.6 Loss of voltage check LOVPTUV ............................................................................................ 198
11.6.6.1 Measuring the operate limit of set values........................................................................ 198
11.6.6.2 Completing the test...............................................................................................................199
11.7 Frequency protection....................................................................................................................199
11.7.1 Underfrequency protection SAPTUF .................................................................................... 199
11.7.1.1 Verifying the settings............................................................................................................199
11.7.1.2 Completing the test.............................................................................................................. 200
11.7.2 Overfrequency protection SAPTOF ...................................................................................... 200
11.7.2.1 Verifying the settings........................................................................................................... 200
11.7.2.2 Completing the test...............................................................................................................201
11.7.3 Rate-of-change frequency protection SAPFRC .................................................................. 201
11.7.3.1 Verifying the settings............................................................................................................ 201
11.7.3.2 Completing the test...............................................................................................................201
11.8 Multipurpose protection.............................................................................................................. 201
11.8.1 General current and voltage protection CVGAPC............................................................... 201
11.8.1.1 Built-in overcurrent feature (non-directional)..................................................................202
11.8.1.2 Overcurrent feature with current restraint...................................................................... 202
11.8.1.3 Overcurrent feature with voltage restraint...................................................................... 203
11.8.1.4 Overcurrent feature with directionality............................................................................ 203
11.8.1.5 Over/Undervoltage feature................................................................................................. 203
11.8.1.6 Completing the test.............................................................................................................. 204
11.9 Secondary system supervision................................................................................................... 204
11.9.1 Current circuit supervision CCSSPVC................................................................................... 204
11.9.1.1 Verifying the settings........................................................................................................... 204
11.9.1.2 Completing the test.............................................................................................................. 204
11.9.2 Fuse failure supervision FUFSPVC.........................................................................................204
11.9.2.1 Checking that the binary inputs and outputs operate as expected ...........................205
11.9.2.2 Measuring the operate value for the negative sequence function ............................. 205
11.9.2.3 Measuring the operate value for the zero-sequence function .................................... 206
11.9.2.4 Measuring the operate value for the dead line detection function............................. 207
11.9.2.5 Checking the operation of the du/dt and di/dt based function .................................207
11.9.2.6 Completing the test.............................................................................................................. 207
11.9.3 Fuse failure supervision VDSPVC........................................................................................... 208
11.9.3.1 Completing the test.............................................................................................................. 208
11.9.4 Voltage based delta supervision DELVSPVC....................................................................... 208
11.9.4.1 Verifying the signals and settings......................................................................................208
11.9.4.2 Completing the test.............................................................................................................. 209
11.9.5 Current based delta supervision DELISPVC.........................................................................209
11.9.5.1 Verifying the signals and settings......................................................................................209
11.9.5.2 Completing the test...............................................................................................................210
11.9.6 Delta supervision of real input DELSPVC..............................................................................210
Transformer protection RET670
Commissioning manual
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