Disconnect The Earthing Of Feeder - Siemens NXAirS Manual

Operation of NXAirS
Preconditions
√ Indicator for switch status displays "1". Earthing switch is close.
Take out the operating handle.
Sliding block of operating hole is closed.
Lock up the padlock (option).
13.10 Disconnect the earthing of feeder
Removable part is in test position
●
Danger!
Once the operation is started, it must be finished, because the handle cannot be stopped during
the operation, and nor reverse rotation will be occurred. Operating handle cannot be taken out
in the middle position.
Operating handle cannot be taken out in the middle position.
Operating hole of earthing switch for feeders and the indicator for switch status
are located at the lower left of handcart room door. Operating hole is blocked by an
additional sliding baffle plate.
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.
Please pay attention to the five safety rules (refer to Page 3 "Normal description").
Before the manual operation, ensure to perform necessary external unlock at first.
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV
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