Siemens NXAIR - Racking the Contactor Truck to Service Position

Operating the contactor panel with panel width 435 mm
114 NXAIR / ≤ 40 kA 110-0134.9 / 14
13.7 Racking the contactor truck to service position
NOTICE
Maloperation
Racking the contactor truck to service position is only permissible if the contactor
is in OPEN position.
Switch the contactor to OPEN position, if required.
Preconditions
• Contactor truck in test position
• Low-voltage connector plugged on (automatically)
• High-voltage door closed
• Contactor in OPEN position
• Feeder earthing switch 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. 183: Racking crank
Fig. 184: Double-bit key with
a diameter of 5 mm
Procedure
NOTICE
Maloperation
All interlocks are only released when the contactor truck is in a stable end
position.
Rack the contactor truck absolutely until end position.