bids are invited for servicing of sub- station including repairing of one 11kv vcb at gupta nivas campus; servicing of 11.0 kv vaccum circuit braeker (vcb) including ht panels, contacts, relays, cts, pts, meters and all allied works servicing of power back-up including charger panel installed ed for operation of 110 kv vaccum circuit bracker (vcb) control panels repairing and servicing of 11.0 kv vaccum circuit bracker (vcb) including ht panels, contacts, relays, cts, pts, meters and all allied works maintenance of 630 kva dry type transformer including cleaning outside and inside, servicing of lt & ht connections, earth and neutral connections, servicing of relays and allied works. maintenance of 400 kva dry type transformer including cleaning outside and inside, servicing of lt & ht connections, carth and neutral connections, servicing of relays and allied works. testing of ht incoming cables from vcb to the transformers earthing with copper curth plate 600 mm x 600 mm x 3 mm thick including accessories, and providing masonry encloure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required. supplying and laying 25 mm x 5 mm copper strip at 0.50 metre below ground as strip earth electrode, including connection/terminating with nut, bolt, spring, washer etc. as required. (jointing shall be done by overlapping and with 2 sets of brass nut bolt & spring washer spaced at 50mm). servicing and repairing of 1000a ach panel, contacts, meters and all allied works. servicing of 1000a acb panel, contacts, meters and all alhed works servicing and repairing of lt switch gear panles including switch fuse units, mccbs, husbars, contacts, meters and all allied works. servicing of 500a ach punel, contacts, meters and all allied works repairing and servicing of 250 kvar apfc panels including contacts, relays, cts, pts, meters and all allied works repairing/ repalcement of apfc controller for 250 kvar capacity including servicing of capacitur hank and all allied works repairing repalcement of capacitors in the capacitor hank of apfc bank and all allied works. replacement of contactors for apfc panel repalcement of tnc switch replacement of led indicating lamps and panel locks