WORK OF REPAIR AND OVERHAULING OF 33 KV VCB ABB AND CGL MAKE AT 220 AND 132 KV S/S AMROHA UNDER E.T.D- AMROHA.

Amount

Work of repair & overhauling of 33 kv VCB ABb & CGL make at 220 & 132 kv s/s amroha UNDER E.T.D- AMROHA.

Repair & overhauling of 33 KV ABB & CGL make VCB type PVN-36 of following feeders at 220 & 132 KV S/S Amroha- 1. 33 KV CB of LV side of 40 MVA T/F-I- 383 (132 KV S/S Amroha) 2. 33 KV feeder Distt Court 3. 33 KV feeder Daudsrai 4. 33 KV feeder Kuan Kheda. 5. 33 KV feeder Makdoompur 6. 33 KV CB of LV side of 40 MVA T/F-II- 384 (220 KV S/S Amroha. By doing following work in each breaker- 1. Cleaning of Porcelain of Drive Insulator and Porcelain of Vacuum Interrupter of each pole. 2. Checking & adjustment of snatch gap, travel of drive insulator rod & tie rod of each pole. 3. Opening, Repairing of mechanism by welding, drilling, machining and filing of material as per requirement and proper fitting of it in breaker cubicle. 4. Oiling & greasing of crank gears by opening of lock, circlip etc. 5. Replacement of worn out parts such as bush, rings, lock pins and latch etc. 6. Checking & adjustment of oil daspot of breaker for its damping action. After repairing & overhauling of VCB following test to be carried out- 1. Opening & closing time of breaker of each pole. 2. Carrying out contact resistance measurement (CRM test) of each pole. 3. Checking of Megger values of breaker poles. 4. Checking tripping of breaker at 70% DC voltage. 5. Checking the CLOSE/OPEN operation of breaker from REMOTE & LOCAL. Prepare and submit the site overhauling report of each breaker.

P&H Engineering

TIRUPATI ELECTRICALS

M/S SATKAR TRADERS