Work

Work of dismantling old , defective/damaged 145KV Circuit Breaker and Installation, commissioning & testing of new 145KV Circuit Breaker and all associated works.

Dismantling of old and obsolete 145KV Circuit Breaker by connecting AC & DC supply and opening nuts , bolts, jumpers, cable connections, earthing and opening of all linkage poles alongwith copper pipe line of SF6 gas of all three poles safely with the help of hydra, then shifting of all dismantled materials at storage place as instructed by engineer incharge. The work also includes dismantling of mechanism housing , GI structure and shiting it to storage place with all other associated works to complete the job.

Erection of new 145KV SF6 Circuit Breaker. The work includes shifting/carriage of new CB with complete accessories from place of storage to work site with the help of hydra , after unpacking, fixing of support structure after opening the protection covers, fixing of interrupting unit at the frames as per drawing/manual and as per instructions of site engineer in charge, checking level of all three poles with level meter , then connecting all mechanic linkage , connecting gas pipes, SF6 gas filling, complete cable connections, electrical termination as per drawing with providing new ferrulling, cable laying as required (cable to be provided by department), with all other associated works to complete the job satisfactorily. The work also includes all modifications required for fixing of base legs/upper structure on new circuit breaker with the help of welding machine etc, providing and fixing of 75x10 or 50x6 mm MS Flat for earthing and its painting by one coat of red oxide primer and two coats of synthetic enamel green color paint, writing of feeder/bay name on CB marshalling box by synthetic enamel paint (black color with yellow background). Connection of all jumpers, clamps etc and replacing the same if required with all other associated works to complete the job satisfactorily. Checking electrical open/close operation from remote/local/protection mode after commissioning of breaker and providing complete electrical wirings as per drawing.

Work of dismantling old , defective/damaged 33KV Circuit Breaker and Installation & commissioning of new 33KV Circuit Breaker and all associated works.

Dismantling of 33KV Damaged/Defective VCB including shifting of dismantled VCB from switchyard to storage place/store room.

Modification of 33KV VCB foundation as per site requirement/as per manufacturing drawing or as per direction of Supervising Engineer and shifting of earthing and both side jumper.

Erection of new 33KV VCB in proper alignment & cable termination of circuit breaker as per logic for tripping/closing/spring charging/indication/Supervision ckt with proper ferruling and checking out of breaker operation from local/remote, including earthing and connection of both side jumpers and works related to complete the erection work. All required T&P, skilled labours, crane/hydra etc. Shall be arranged by the contrator at his own cost.

Replacement of 132KV CT/PT/LA with all cost of T&P required, skilled labours, crane/hydra of suitable capacity (to be arranged by contractor at his own cost)

Dismantling of 132KV CT/PT after opening of both side jumpers, cable termination etc , including shifting of dismantled material from site to place of storage as per directions of engineer in charge.

Erection of new 132KV CT/PT including shifting of new 132KV CT from store to site. The work shall also including jumpering on both sides, earthing & cable termination, painting of earthing flat.