REPAIR/MAINT OF TRANSFORMERS AND ALLIED WORKS AT RIDGE, ROULKI, 166 MH,RAIPUR SATWARI,Y STN , DEFENCE COLONY , NCC OFFRS MESS UNDER GE SATWARI

Handling, transportation of unserviceable transformer 11 /0.433 KV of capacity 63 KVA to 250 KVA. of any make, model & type including disconnection all electric cable, earth lead, clamps and channels etc & taking down from pole (4 pole structure/2 pole pole mounted) or plinth mounted by any means of mechanically operated pulley/ mechanical crane, transportation to MES store Yard / workshop and factory for repair/maint with & including transporting back of transformer to existing places to MES store yard or other existing substation after repair & hoisting / lifting and placing in position and securing properly on pole mounted/plinth mounted including connecting all cable, earth lead, clamps and channels etc as per site requirement and testing after installation complete all as directed and as specified. Notes :-(i) Please note that If any damage to transformer/OH line/cables occur during handling, transportation or during hoisting/lifting, the same will be rectified by the contractor without any extra cost to the department. (ii) Transportation to workshop and back to site /and required T&P like crane etc are to be arranged by contractor and rate for which is deemed to be included in the item. (iii) Standby transformer of same capacity will also be provided by the contractor and rate for which is deemed to be included in the item.

Description same as per srl item No 01 above but of capacity 315 KVA to 630 KVA complete all as directed and as specified.

Opening the top cover of transformer step down 11 KV to 0.440 KV, of capacity 63 KVA to 100 KVA of any make, model & type out door/ indoor type, draining out oil in clean barrels, dismantling of cover & taking out the defectiv/burnt out HT/LT coils cleaning the tank and getting out the dust particles & replacing old defective coils with new coils, refitting the top cover and other accessories such as providing sundry items & reassembling after repairs to the entire satisfaction of the Engr-in-Charge and heat treatment connecting of all the electrical connections and other accessories and making the transformer absolutely leak proof, pouring oil in the transformer making all electrical connections testing after repair complete all as directed and as specified. Notes:- (i) If retrieved transformer oil's di-electric strength is very less, then it will be replaced with new one .as directed by Engineer Incharge and same will be measured & paid under relevent item. (ii) If any items like winding of HT coil, reconditioning of LT coil, spares like breather, silica jel to be replaced for smooth functioning of transformer shall be measured in relevent items. (iii) Any minor item like nut, bolt are included in this item rate.

Description same as per srl item No 03 above but transformer of capacity exceeding 125 KVA and n.exc 315 KVA complete all as directed and as specified.

Description same as per srl item No 03 above but transformer of capacity exceeding 400 KVA and n.exc 630 KVA complete all as directed and as specified.

Winding of HT coils of transformers with super enamelled copper winding wire of appropriate gauge along with allied insulating material of capacity 63KVA to 630KVA complete all as directed and as specified.

Winding of LT coils of transformer with cotton braided copper wire /strip of appropriate size along with allied insulating materials of capacity 63KVA to 630KVA of transformers complete all as directed and as specified.

Taking out existing worn out bush rod with accessories & replacement of HT bushes (11 KVA) with rod assembly complete of metallic alloy (brass gun metal) of suitable dia & length including nuts, washers, insulator, packing oil sealing bushes for transformer of capacity 63 KVA to 630 KVA, complete all as directed and as specified.

Taking out existing worn out bush rod with accessories & replacement of LT bush (440 volt) with rod assembly complete of metallic alloy (brass gun metal) of suitable dia & length including nuts, washers, packing oil sealing bushes suitable for transformer of capacity 63 KVA to 100 KVA, complete all as directed and as specified.

Description same as per srl item No 10 above but capacity of transformer 125 KVA to 250 KVA. complete all as directed and as specified.