ABB Relion 670 Series Installation And Commissioning Manual page 13

Installation and commissioning manual
Verifying settings by secondary injection.............................189
Completing the test..............................................................190
Accidental energizing protection for synchronous generator
AEGGAPC.................................................................................191
Verifying the settings............................................................191
Voltage protection...........................................................................191
Two step undervoltage protection UV2PTUV ...........................191
Verifying the settings............................................................191
Completing the test..............................................................192
Two step overvoltage protection OV2PTOV .............................192
Verifying the settings............................................................192
Completing the test..............................................................192
Two step residual overvoltage protection ROV2PTOV ............193
Verifying the settings............................................................193
Completing the test..............................................................193
Overexcitation protection OEXPVPH .......................................193
Verifying the settings............................................................193
Completing the test..............................................................194
Voltage differential protection VDCPTOV .................................194
Check of undervoltage levels...............................................194
Check of voltage differential trip and alarm levels................196
Check of trip and trip reset timers........................................197
Final adjustment of compensation for VT ratio
differences ...........................................................................198
Completing the test..............................................................198
100% Stator earth fault protection, 3rd harmonic based
STEFPHIZ ................................................................................198
Testing..................................................................................199
Verifying settings..................................................................200
Completing the test..............................................................201
Frequency protection......................................................................201
Underfrequency protection SAPTUF ........................................201
Verifying the settings............................................................201
Completing the test..............................................................202
Overfrequency protection SAPTOF ..........................................202
Verifying the settings............................................................202
Completing the test..............................................................203
Rate-of-change frequency protection SAPFRC ........................203
Verifying the settings............................................................203
Completing the test..............................................................204
Multipurpose protection..................................................................204
General current and voltage protection CVGAPC.....................204
Built-in overcurrent feature (non-directional)........................204
Overcurrent feature with current restraint.............................205
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