Overhauling of VCB and Isolator

Amount

Following work is to be done in 36 KV VCB of BHEL/ Shreem/Stelmec/ ABB make at 220 KV S/S Hardoi Road Lucknow with all cost of men, misc. consumable, T&P, Testing kit etc.

General Maintenance & Servicing of operation mechanism & spring charging mechanism of VCB’s of below mentioned Bays including travel measurement of moving Rod, Checking of VCB contact continuity, dismantling of Tie rod assembly, cleaning & greasing of its all roller pins and its re-assembly, cleaning of all moving parts and their greasing, checking & rectification of problem in Electrical circuit including aux contact block, checking of auto Operation of spring charging motor, setting of limit switches, Measurement of contact resistance of all the Poles using contact resistance meter, Measurement of closing and tripping time of all the poles with the help of digital time measurement equipment, Checking of healthiness of the vacuum interrupter by using vacuum interrupter tester and finally checking of opening & closing operation of the circuit breaker on remote and local.

63 MVAT/F-I LV Bay.

63 MVAT/F-II LV Bay.

36 KV Bus Coupler Bay.

33 KV Awash Vikash Bay.

Repairing and Overhauling of 132 KV Line Isolator by Opening and Cleaning of Rotary head assembly of Isolator and lubricating & Tightening all the nut and bolts of the isolators, Opening of Jaw blade its cleaning by sand paper after that its fitting in same position and adjustment of jaw blade for proper opening closing for symmetrical & smooth operation. Works also includes replacement of jaw, blade, Jumpers & clamps where required.

132 KV NKN Bay

r s enterprises (BID ID -5218879)

JAI BHART ENGG WORKS (BID ID -5225886)