Operating The Switch-Fuse Combination To Closed Position - Siemens NXAIR Operating Instructions Manual

Air-insulated switchgear ≤ 17.5 kv / ≤ 40 ka / ≤ 4000 a busbar current
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Fig. 387: Closing the high-voltage door
Fit a padlock (optional) to the door handle and close it.
The high-voltage door is closed.

18.6 Operating the switch-fuse combination to CLOSED position

Preconditions
Switch-fuse combination in OPEN position
Switch-fuse combination must be latched
High-voltage door closed
Feeder earthing switch in OPEN position
Striker of HV HRC fuse-link not tripped
For electromagnetic interlock (optional):
Electromagnetic interlock activated
Operating lever available
Padlock (optional) removed from operating slide
110-0134.9 / 14
NOTICE
Maloperation
Risk of damaging the mechanism due to incomplete switching operation.
After closing the switch-fuse combination, the operating lever must be
pushed all the way down to the end position for latching the mechanism to
prevent accidental opening.
NXAIR / ≤ 40 kA
Operating the switch-disconnector panel
221

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