
Verifying the case
RetripMode
=
No CB Pos Check
..............45
Verifying the function mode
Current&Contact
........................45
Completing the test................................................................46
Pole discordance protection CCRPLD........................................46
Verifying the settings..............................................................46
Completing the test................................................................47
Directional under-power protection GUPPDUP...........................47
Verifying the settings..............................................................47
Completing the test................................................................49
Directional over-power protection GOPPDOP.............................49
Verifying the settings..............................................................49
Completing the test................................................................50
Testing voltage protection functions.................................................50
Two step undervoltage protection UV2PTUV..............................50
Verifying the setting................................................................51
Completing the test................................................................51
Two step overvoltage protection OV2PTOV................................51
Verifying the settings..............................................................52
Completing the test................................................................52
Two step residual overvoltage protection ROV2PTOV...............52
Verifying the settings..............................................................52
Completing the test................................................................53
Overexcitation protection OEXPVPH..........................................53
Verifying the settings..............................................................53
Completing the test................................................................54
Testing frequency protection functions.............................................54
Under frequency protection SAPTUF .........................................54
Verifying the settings..............................................................54
Completing the test................................................................55
Over frequency protection SAPTOF............................................55
Verifying the settings..............................................................55
Completing the test................................................................56
Testing control functions...................................................................56
Voltage control.............................................................................57
Secondary test.......................................................................59
Check the activation of the voltage control operation.............59
Check the normal voltage regulation function........................60
Check the undervoltage block function..................................61
Check the upper and lower busbar voltage limit....................61
Check the overcurrent block function.....................................61
Automatic voltage control for tap changer, single control
TR1ATCC...............................................................................62
Automatic voltage control for tap changer, parallel
control TR8ATCC...................................................................63
Table of contents
RET650 3
Commissioning Manual