Close The Circuit Breaker - Siemens NXAirS Manual

Operation of NXAirS
Preconditons for this operation
Operating procedure
Preconditions for this operation
Operating procedure
13.6 Close the circuit breaker
Manual operation
Removable part is in working position or test position;
●
Spring has been enough energized.
●
Drawing 12. Operating hole for mechanical
close of circuit breaker
Turn the movable door to sides through the nut.
Insert the operating pole into the door through the operating hole and push inside the
close switch.
√ Close/open indicator changes to "1" from "0". Recorder of operating times adds 1. Circuit
breaker is closed.
Take out the operating pole from the operating hole.
Electrical operation
Removable part is in working position or test position;
●
Spring has enough energy.
●
HV door of switch cabinet is closed.
●
Danger!
The unstable auxiliary voltage will impact the electrical interlock and mechanical interlock. If
the interlock mechanism moves upwards, manual operation is not allowed due to the electrical
interlock.
Before the manual operation, ensure to perform necessary external unlock at first.

Close the circuit breaker.

√ Close/open indicator changes to "1" from "0". Recorder of operating times adds 1. Circuit
breaker is close.
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV
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