Racking The Contactor Truck To Test Position - Siemens NXAIR Operating Instructions Manual

14.8 Racking the contactor truck to test position

Preconditions
•
Contactor truck in service position
•
Contactor in OPEN position
•
For electromagnetic interlock (optional):
•
Electromagnetic interlock deactivated
•
Racking crank for moving the contactor truck available
•
Double-bit key available
•
Padlock (optional) removed from operating slide
Fig. 274: Racking crank
Fig. 276: Position indicators
110-0134.9 / 14
Operating the contactor panel with panel width 600 mm
NOTICE
Maloperation
Racking the contactor truck to test position is only permissible if the contactor is in
OPEN position.
Switch the contactor to OPEN position, if required.
NXAIR / ≤ 40 kA
Fig. 275: Double-bit key with a diameter of 5 mm
Position indicator for contactor:
(1)
OPEN position
Position indicator for feeder earthing switch:
(2)
OPEN position
Position indicator for contactor truck:
(3)
Service position
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