tender for maintenance work at 33 / 11 k.v sub station- 1 removing of 24 volt, 40amp boost / float battery vharger with replacement / repairing of microprocessor based scr control circuit, high current scr, high current rectifire circuit, dc filter circuit, ac / dc amp / volt meter etc. and checking for smooth operation of charger. 2 checking / repairing and testing of electrical wiring of 11kv switch gear panel, replacement of defective component, selector seitch, tnc switch, amp / volt merer and checking for proper operation of 11kv vcb and finally testing of vcb for closing / opening electically and tripping of oc & earth fault. 3 carryout overhauling of operating mechanism of 11 kv switchgear including repairing / replacement of deffective parts. 4 complete checking / repairing & testing of 33kv vcb through primary and secondary injection kit suitable for testing ct ratio upto 88 / 5a including all t&p as per norms including to & fro. the work include checking electrical wiring and rectification if need. 5 carrout overhauling of operating mechanism of 33 kv switchgear including repairing. 6 repairing of charging motor of 33kv breaker and its electrical circuit. the work include rewinding of motet with suitable guage super enamelled copper wire, replacment of bush / bearing, setting of limit switch etc. 7 repairing / replacement of rectifire of 11kv switch gear and rectification of charging motor circuit. 8 repairing / re-winding of 11 kv breaker spring charging motor and its electrical ciruit. the work include rewinding of moter with suitable guage super enamelled copper wire, replacement of bush / bearing, setting of limit switch etc. 9 supply and installation of 24 volt battery set