type of breaker:
11 kv : AIS (air insulated switchgear)
33kv : GIS (gas insulated switchgear)
JOB:
servicing breakers:
1. cleaning breaker's surface with cotton.
2. spray breaker gear with WD40
3. testing breaker with manually tripping.
11kv breakers serviced done by TNB
33kv breakers serviced done by manufacturer ABB
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