REPLACEMENT OF GASKET AND CENTRIFUGING OF 132/33 KV 40MVA TRANSFORMER

Amount

Opening of jumpers of HV/LV side, removal of earthing strip of 132/33kV 40MVAT/F-II at 220 KV Sub Station Sahupuri

Dismantling of 40MVA TT accessories including radiator, bushing. bucholz relay, oil pipe line from conservator tank to main tank, oil pipe line to OLTC and surge relay conservator tank at 220 KV Sub Station Sahupuri

Complete drain out of 1/F oil from the existing 40MVA T/F into empty oil drums/oil tanker Replacement of all the gaskets including the top cover of the top cover

Replacement of all the gaskets including the top cover of T/F by proving and fixing of new gaskets as per existing size made of rubberized cork sheet (Kotika/Turboze/Nu cork brand grade 07)

Overhauling of diverter switch after removing of oil and dirty T/F oil from its chamber filling the fresh centrifuged T/F oil its centrifuged circulation as per norms of T/F

Cleaning of Core and winding by T/F oil and removed the slug from bottom

Creating the Vacuum inside the main tank for period for 12 Hrs. and filling of centrifuging oil step up to core & winding conservator tank radiator

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

Centrifuging of complete T/F oil in T/F by connecting centrifuging pipe circulating the T/F oil through centrifuging machine to be provided by the department and taking the BDV value periodically till the required value is achieved

Gupta Elect and Engg Works (BID ID -5106605)