Racking The Withdrawable Circuit-Breaker To Service Position Electrically - Siemens NXAIR M Operating Instructions Manual

Air-insulated switchgear
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Panels with motor operating mechanism control

23.8 Racking the withdrawable circuit-breaker to service position electrically

220
NOTICE
Maloperation
Racking the withdrawable circuit-breaker is only permissible if the circuit-breaker
is in OPEN position.
Check if the circuit-breaker is in OPEN position.
If required, switch the circuit-breaker to OPEN position before racking.
NOTICE
Maloperation
Racking the withdrawable circuit-breaker is only permissible if the feeder
earthing switch is in OPEN position.
Check if the feeder earthing switch is in OPEN position.
If required, switch the feeder earthing switch to OPEN position before
racking.
NOTICE
Maloperation
Electrically racking the withdrawable circuit-breaker is only possible when both
the high-voltage door and the control door are closed. If the control door is opened
during an electrical racking procedure, the motor stops immediately.
Do not open the control door during an electrical racking procedure.
NOTICE
Conflicting operation
Racking the circuit-breaker electrically is possible locally or from a central control.
The requirement of setting the panel to either local or remote control prevents
operating the panel locally and centrally at the same time.
Depending on the intended operating mode, set the panel to either local or
remote control (for example by switching the local-remote switch).
NXAIR M
139-2021.9 / 07

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