Further Operating Options - Siemens NXAIR M Operating Instructions Manual

Panels with motor operating mechanism control
Procedure
Set the busbar earthing switch to OPEN or CLOSED either locally or from the central control.

23.18 Further operating options

For any operating options concerning circuit-breaker panels with motor operating mechanism control that
have not been described in the chapters 23.1 to 23.17, see the relevant chapters in these Operating
Instructions, in particular:

Opening the high-voltage door, chapter 10.4

Closing the high-voltage door, chapter 10.5.

Closing the circuit-breaker electrically, chapter 10.9

Opening the circuit-breaker electrically, chapter 10.10

Removing the low-voltage connector, chapter 10.17

Plugging on the low-voltage connector, chapter 10.18

Taking the withdrawable circuit-breaker out of the panel, chapter 10.19

Inserting the withdrawable circuit-breaker in a panel, chapter 10.20
234
NOTICE
Conflicting operation
The requirement of setting the panel to either local or remote control prevents
operating the panel locally and centrally at the same time.
For any local operations ─ manual or electrical ─ set the panel to local
control, for example by switching the local-remote switch to LOCAL
position.
For any central operations set the panel to remote control.
NOTICE
Covered control elements
For safety reasons, some of the control elements on the high-voltage door are
covered by the control door.
If required, open the control door to uncover the control elements on the
high-voltage door.
HINT
Blocking any racking operation is the precondition for opening the high-voltage
door.
Before opening the high-voltage door, set the access mode indicator to
"T".
NXAIR M 139-2021.9 / 07