maintenance work at 33 / 11 k . v sub station-1 carryout overhauling of operating mechanism of 11 kv switchgear including repairing / replacement of deffective parts 2 carryout overhauling of trolly and calibration of male & female contact of interrupter . 3 repairing / replacement of trip bridge assembly for smooth tripping of switch gear. 4 repairing / replacement of closing spring charging mechanism for smoth closing operation of switch gear. 5 replacement of damaged / burnt bushing / spout / ct of 11 kv switch gear. 6 attending fault in tripping / closing mechanism, trip bridge assembly , manual charging mechanism , trolly lowering / hoisting mechanism and trolly allignment with panel etc. of 11 kv switchgear. 7 attending flash over in switch gear by cleaning / overhauling of bus bar and connectors and properly taping them with empire and h.t. tape.