O and M of 220 Substation

Complete overhauling, servicing, repairing, replacement and testing of 33 kV Indoor VCB of 33 kV Station feeder make CGL ,Type 13118-1991/IEC56-1987 ,Sr No-455 VC , Breaking capcity 25 kA Mfg- May 2010, including complete dismantling and reassembly of VCB, draw-out mechanism/trolley, trolley wheels and bearings, guide rails, shutter assembly, mechanical and electrical interlocking arrangement, primary disconnecting/tulip contacts and contact springs, VCB operating mechanism, closing and tripping mechanism, spring charging mechanism, spring charging motor, bearings, bushes, pins, springs, latches, trip coil, closing coil, limit switches, control wiring, terminals, ferrules, lugs. Providing and fixing of 3 No. 33KV 1Cx240mm² cable termination kit with cable glands . Repair/replacement of defective CT/PT with secondary cables, cleaning and tightening of all connections, epoxy surface treatment/coating of trolley and required metallic/insulation parts, replacement of 3 Nos defective vacuum interrupters complete with removal, installation, alignment and contact adjustment, lubrication of all moving parts and mechanism, adjustment of contact gap, checking of breaker alignment and operation, and replacement of all necessary minor mechanical/electrical consumables such as nuts, bolts, washers, bushes, springs, pins, gaskets etc.; including IR test, contact resistance test, breaker timing test, trip/close coil test, local/remote operation test, mechanical/electrical interlock test, CT/PT secondary circuit continuity and insulation test, final functional testing, commissioning and all labour, tools, tackles, testing equipment and incidental charges complete in all respects as per technical specifications and instructions of Engineer-in-Charge.

Complete painting of 33 kV IIM Bay steel structures and associated metal parts , including surface cleaning, removal of loose/rusted paint, wire brushing, application of one coat of suitable anti-corrosive primer and two coats of approved synthetic Aluminium paint of matching colour, including labour, paint, primer, brushes, tools and tackles, scaffolding and all incidental charges, complete in all respects as per departmental instructions

Providing, Insttalation and fixing of 33 kV Lightning Arresters (LAs) of approved make and rating suitable for 33 kV feeder bays, including transportation to site, loading and unloading, mounting on existing support structures using suitable clamps, nuts, bolts and hardware, connection with associated feeder conductors, earthing connections to the existing earth mat, testing and commissioning, including all material, labour, transportation, tools, tackles and other incidental charges, complete in all respects as per instructions of the Engineer-in-Charge.