NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV
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Operation of NXAirS
14. Service
14.1 Maintenance of switch panel
Maintenance work for parts in the panel, such as voltage transformer, current transformer, relay, counter and protector,
shall be in accordance with the requirements of relative operation manuals.
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Maintenance work can be performed by using some normal tools.
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After maintenance work finished, put the equipment into operation again according to operation manual.
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If operating in an environment with too much dust or humidity air or pollution, the maintenance cycle shall be shorten.
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In shorter maintenance period (according to the specifications of customers), coat lubrication oil on the contact of
main circuit (a), fix contact of earthing switch (f) and other parts with frication, such as driving shaft of movable door
mechanism (s) and travel rail (d). (a) and (f) shall adopt Dose Long-term2; (s) and (d) shall adopt Isoflex Topas L32.
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Besides periodic maintenance, if any fault occurred, causes for faults and short circuits must be investigated immediately
and damaged equipment must be replaced at once.
Every year (or according to the specifications of customers)
Carry out routine check to the damage, dust accumulation and local discharge, noise of parts on switch panel.
Check whether the fittings are in good conditions (including maintenance truck).
In the tenth years (or according to the specifications of customers)
Check the movement conditions of earthing switch.
Clean switch panel and check the status of HV connection points (joints).
Check the tightness of bushing type insulator and bushing type transformer.
a)
a)
f)
s)
d)
