Repairing of 2 Phase 400 kv pentograph isolators of 400 kv bus coupler bay at 400 kv s/s agra

Amount

Repair & Calibration of Insulation Tester 15KV (Sr.No-5689)(maKe-TarusRepairing and replaceing of 02 No. phase (R&Y) of 400 kV/ 2000A pantograph isolators (S&S make) installed at 400 kV Bus Coupler bay (95A) by dismantellling of isolator arms from the structure with the help of crane and special T&P, and replacing the defected parts including dismantling of gear mechanism (hamper assembling) of moving contact assembly, repairing of electrical contacts, overhauling cleaning & lubricant of all the moving parts inside the gear mechanism box, re-erection of pantograph isolator after complete repairing of arms by cutting and aluminium welding on arm and also replacing the damaged arm copper rod, male female contacts and trapezium etc. whenever require.(will provid by deptt. Free of cost) Also checking of arm knee joints for better function and then re-erection of both phase isolator arm assembly on the same place.The work also includes the checking of electrical contacts for proper connection & alignment, operating the isolator manually and carryout all necessary electrical mechanism adjustment, checking & setting the operation of mechanism, carryout all cleaning, overhauling & greasing of all the mechanical components fitted in the MOM (operating box) & checking the operation at auxiliary contact block. Also checking for proper operation of isolators.

K. C. ENTERPRISES

VASU ENTERPRISE