WORK OF LOADING / CARRIAGE UNLOADING OF 40 MVA TRANSFORMER FROM 132 KV SUB STATION NAZIBABAD TO 220 KV SUB STATION CHANDAUSI UNDER ELECTRICITY TRANSMISSION DIVISION SAMBHAL

Amount

The following works are to be carried out at 220KV S/S, Chandausi under ETD-Sambhal.

Partly dismantling of 40 MVA T/F for carriage of main tank at 132 KV S/S Nazibabad.

Shifting/ Dragging of oil filled 40 MVA Transformer from existing place to near loading place at 132 KV Sub-Station Nazibabad Distance up to 20 Mtr.

Loading of 40 MVA T/F main tank along with accessories, making the wooden sleeper plate from jacking the T/F tank up to trailer height placing the rail under T/F tank and shifted up on trailer, removed the rail under T/F tank and proper tightening the main tank with trailer bed with the help of steel rope and turn buckle.

Packing of HV/LV/N Bushing of Transformer.

Carriage of 40 MVA T/F tank from 132 KV Sub-Station Nazibabad to 220 KV Sub-Station Chandausi along with all accessories by Pvt. Truck / Trailer. Distance about 200 Km.

Unloading of main tank of 40 MVA Transformer loaded on Trailer jacking the tank for packing the rail under the T/F tank and shifting it of wooden to plate form, Removing the rail under the T/F tank on wooden sleeper, lowering the tank towards ground by slowly and removing the wooden sleeper under the tank and unloading of various Transformer accessories of above 20 MVA T/F like oil filled drums, bushing conservator tank, cooling fan etc. from Track/ Trailer at site at 220 KV S/S Chandausi.

Shifting / dragging of oil filled 40 MVA Transformer from unloading place to plinth upto 20 mtrs distance including turning of Transformer if required including all T & P and other works to complete the job satisfactory.

Additional shifting 30 mtrs @ 5 mtrs per job.

Replacement of gasket of radiator / Bushing / pipe line only open part. except Top Cover of Transformer by providing and fixing of new gasket as per existing size made of rubberized cork sheet Kotika / Turborze brand grade.

Cleaning of core and winding by hot Transformer oil and removal of slug from bottom.

Overhauling of diverter switch after removing of oil from its chamber filling the fresh centrifuged Transformer oil and its circulation as per norm of Transformer.

Complete, erection of 40 MVA T/F by erection of conservator tank, bushing with its turrets (if available) connecting of all oil pipe line, erection of cooling fans, making control cables connection, buchholz relay etc. for completing the work, topping of T/F oil and final oil filling in tank, radiator, conservator tank and all other associates work for completion of work.

Electrical connection of 40 MVA T/F with laying of cable and Termination in between WTI,OTI buchholz relay, cooling fans, OLTC, Marshaling box etc with proper feruling as per drawing.

Earthing of Main tank of 40 MVA T/F by using M.S flat 50x6/75x10 mm size its jointing with already laid earthmat/deltas preparing Neutral bushing support for its earthing including all work.

Jumping of 40 MVA T/F HV/LV side cutting of conductor and tightening of conductor with connector

Centrifuging of complete T/F oil in T/F by connecting centrifuging pipes circulating the T/F oil through PVT. Centrifuging machine and taking the BDV value of the oil periodically till the required value is achieved.(oil capacity App. 20 KL.) (Centrifuging machine shall be provided by the Contractor.

Perfect Power Transformer Associates

Meena Elect & Engg. Works