ABB REG670 2.0 IEC - Page 12

Accidental energizing protection for synchronous generator
AEGPVOC.................................................................................170
Verifying the settings............................................................ 170
Voltage-restrained time overcurrent protection VRPVOC......... 171
Verifying the settings............................................................ 171
Completing the test.............................................................. 174
Generator stator overload protection GSPTTR......................... 174
Verifying the settings............................................................ 174
Completing the test.............................................................. 175
Generator rotor overload protection GRPTTR...........................175
Verifying the settings............................................................ 175
Completing the test.............................................................. 176
Voltage protection...........................................................................176
Two step undervoltage protection UV2PTUV ...........................176
Verifying the settings............................................................ 176
Completing the test.............................................................. 178
Two step overvoltage protection OV2PTOV .............................178
Verifying the settings............................................................ 178
Extended testing...................................................................179
Completing the test.............................................................. 179
Two step residual overvoltage protection ROV2PTOV ............ 179
Verifying the settings............................................................ 179
Completing the test.............................................................. 180
Overexcitation protection OEXPVPH ....................................... 180
Verifying the settings............................................................ 180
Completing the test.............................................................. 181
Voltage differential protection VDCPTOV .................................181
Check of undervoltage levels............................................... 181
Check of voltage differential trip and alarm levels................183
Check of trip and trip reset timers........................................ 184
Final adjustment of compensation for VT ratio differences . 185
Completing the test.............................................................. 185
100% Stator earth fault protection, 3rd harmonic based
STEFPHIZ ................................................................................ 185
Testing..................................................................................186
Verifying settings.................................................................. 187
Completing the test.............................................................. 188
Frequency protection......................................................................188
Underfrequency protection SAPTUF ........................................188
Verifying the settings............................................................ 188
Completing the test.............................................................. 189
Overfrequency protection SAPTOF ..........................................189
Verifying the settings............................................................ 189
Completing the test.............................................................. 190
Table of contents
6 Generator protection REG670 2.0 IEC
Commissioning manual