P92x/EN CM/E11 Techncal Guide
Commissioning Guide
Page 24/28 MiCOM P921-P922-P923
abcd
7. FINAL CHECKS
The tests are now complete.
REMOVE ALL TEST OR TEMPORARY SHORTING LEADS, ETC. IF IT HAS BEEN
NECESSARY TO DISCONNECT ANY OF THE EXTERNAL WIRING FROM THE
RELAY IN ORDER TO PERFORM THE WIRING VERIFICATION TESTS, IT
SHOULD BE ENSURED THAT ALL CONNECTIONS ARE REPLACED IN
ACCORDANCE WITH THE RELEVANT EXTERNAL CONNECTION OR SCHEME
DIAGRAM.
If the relay is in a new installation or the circuit breaker has just been maintained, the
circuit breaker maintenance counters should be reset to zero. To do this, go to the
"CB DATA" menu (P922-P923).
If an MMLG test block is installed, remove the MMLB01 test plug and replace the
MMLG cover so that the protection is put into service.
Ensure that all event records (P922-P923), fault records (P922-P923), disturbance
records (P922-P923), alarms and LEDs have been reset before leaving the relay.
If applicable, replace the secondary front cover on the relay.
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