WORK OF REPLACEMENT OF 245KV BREAKER OF 220KV 160MVA-I BAY AT 220KV SUB-STATION BARAHUWA UNDER ETD-II , GORAKHPUR

Amount

Shifting and placing of chequrred plates, wooden sleepers etc. at site in 220 KV , 160 MVA-I bay for easy movement of crane / hydra.

Isolating all the three poles of 245 KV Old Breakers of this bay by opening of connectors from both ends again its connection to both ends of breakers after installation of new 245 KV SF-6 breakers at 220 KV , 160 MVA -I Bay .

Complete de-termination of various size of PVC Control cable of different size 2Cx2.5 Sq. mm , 4Cx2.5 Sq. mm , 6Cx 2.5 Sq. mm , 10C x 2.5 Sq. mm , 12C x 2.5 Sq. mm , 19C x 2.5 Sq. mm between control and relay panel to marshalling box of 220 KV PGCIL Bay and proper marking and re-connection to new cubical after providing new ferrules , lugs and tags with all cost of men , material and T&P (New cable if required shall be provided by the department ).

Dismantling of following components of 220 KV 160 MVA-I bay 245 KV SF-6 CB after opening of 19 Core Control Cables between each phase control blocks and switch Cubicals for safe carriage of dismantalled parts including chamber insulators , support Insulators , Control Cubicle , support structure , copper pipes and compressors from the site as per direction of JE/SDO .

Modification of base structure as per grouted bolts including cutting welding and drilling .

Erection of new 245 KV SF-6 Breakers complete with accessories & structure by assembling all parts with bolts & nuts at 220 KV 160 MVA-I bay as per drawing in super visioning of Seimens Service Engineer and Supervising Engineer along with shifting the 245 KV SF-6 CB from store to site .

Laying of 19 Core Control Cable between marshalling box and each phase control block and making interphase wiring between marshalling box and each phase control block for proper closing & tripping of 245 KV SF-6 CB in local & remote mode by opening the trench cover and again putting after completion of work .

Termination of dismantled cable wire from control panel to the CB Marshalling box with work of fixing cable gland , ferrulling and making lug on wire as per drawing and making bunch with tag material .

Making earthing of 245 KV SF-6 Breakers of 220 KV 160 MVA-I Bay and cubicle and platform with work of laying of M.S. Flat 75x10 mm and 50x6 mm after digging pit , making lap joint of flat of 75 mm for flat joint and semi circle joint for main earth mat M.S. Rod of 40 mm by makig electric welding as per technical specification , bituminous paint after cleaning welded joints below ground level and back filling of pit.

Painting of M.S. Flat of 75x10 mm /50x6 mm with 01 coat of red oxide primer and 02 coats of synthetic enamel green paint after cleaning the surface .

Misc. work like making vacuum of poles 245 KV CB and filling of SF-6 Gas and checking for leakage of gas . Checking ON/OFF position and helping for testing and commissioning of CB complete work.

Shifting and placing of M.S. Chequered plate , wooden sleeper etc. from site to store after completion of works as per requirement.

M S Traders

Harshit Enterprises