Accessing the connection compartment through the front
176 NXAIR M 139-2021.9 / 07
Perform final checks regarding the correct state and position of the shutter (1) and the
levers (2) for moving the shutter. If any of these checks fails, do not insert any removable
voltage transformers in the voltage transformer compartment, but inform the regional
Siemens representative.
Check against the labyrinth (3) if the shutter (1) is horizontally arranged.
Check if the top edge of the shutter is flush with the shutter frame (4).
Check if the levers (2) are in perfectly straight condition.
Fig. 308: Checking state and position of shutter and levers
The bushing plate, the vertical partition and the voltage transformer compartment are
installed.
Final procedure steps
Now the panel can be integrated into the course of operation again, for example:
Inserting the withdrawable part in the panel.
Closing the high-voltage door.
De-earthing the feeder.
Racking the withdrawable part to service position.
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