VCB/SF6 breaker Services
- •
- • Rack in/ Rack out mechanism checks
- • Complete mechanism cleaning through CRC
- • Lubrication to be done on mechanism
- • Door shutterInterlock checking
- • Checking close/ Trip coil setting
- • Checking Function of Aux. Switch, Limit Switches & Anti-pumping Contactor
- • Checking spring charging Operation of Motor manually& electrically
- • Rectification problem if any
- • Checking breaker On/Off operation manually & electrically.
- • Checking IR values of Poles.
- • Contact resistance of main contacts pole (CRM KIT)
- • Checking tightness of Control connections
- • Checking breaker tripping operation through relay
- • Relay calibration through secondary injection kit
- • CT Testing through primary Injection.
- • All Associated Skeleton panels and cubicles to be serviced.
• Any other Maintenance related Jobs in respect to HT Panels as Instructed by EIC


