OVERHAULING/MAINTENANCE OF 33KV VCB INSTALLED AT 220KV S/S KANPUR SOUTH UNDER ETD-II KANPUR

Amount

Following works are required for proper health checking & avoid unwanted breakdown of 33KV VCB at 220KV substation Kanpur South under ETD-II, Kanpur. Details of 33KV VCB/bays are as below: Rooma, Air-Force, Sanjay Nagar, Ganga Pollution, Wazidpur, Sarsaul, Narwal, Ahirwan, Purwameer (Total 09Nos) i. Checking and adjustment of snatch gap travel of drive insulators rod and tie rod of each pole. ii. Replacement of all damaged and defective parts closing latch assembly, strip latch, close coil etc. and its proper adjustment cleaning and greasing. iii. Oiling and greasing of crank gear by opening of lock clip etc. iv. Dismantling of all pole linkage, pins and rod assembly, cleaning, greasing and its proper adjustment v. Check satisfactory trip & close operation of the breaker both by local/remote vi. Check close/trip timing of digital timer kit. vii. Repairing of mechanism for rectification of mechanical problem. After overhauling of VCB following tests to be carried out… (a) Opening and closing timing of each pole of VCB. (b) Carrying of contact resistance measurement of each pole of VCB. (c) Checking of megger value of each pole of VCB.

Indra Enterprises (BID ID -5150157)

M/s Prakash & Brothers (BID ID -5150188)