NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV
25
Operation of NXAirS
①
When the indicator of earthing switch is light on, the moving contact of earthing
switch is in vertical status.
②
When the indicator of earthing switch is light off, the moving contact is in
horizontal status.
Drawing 16. Earthing switch close (grounded)
Danger!
Due to the cable in cable compartment of switch panel is with working voltage in working
conditions, when check the connection in cable compartment or carry out other work, cable
compartment must be ensured without voltage.
Switch off the power supply prior to take out the separator plate.
Please pay attention to the five safety rules (refer to Page 3 “Normal description”).
Ensure there is no voltage.
At this time, work planned in cable room can be accomplished.
13.12 Inserting SION module
Place SION module on maintenance truck, then push the SION module into truck
compartment (refer to Page 25 “13.13 Operating procedures of NXAir S service truck”).
Code
Mechanical code for secondary plug on SION module can prevent the secondary plug for small
current cabinet from inserting into large current cabinet, and vice versa.
Danger!
If a unmatchable truck is pushed during operation, serious consequence would be caused.
The code is unchangeable.
①
Mechanical code
Drawing 17. Secondary plug connector Drawing 18. Secondary plug
①
Code symbol of removable part
②
Code symbol of secondary plug
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