Replacement of Gasket of 40MVA Transformer

Amount

Following works are to carried out at 132 KV Sub-station, Asha under ETD, Hardoi

Opening of jumper of HV/LV side of 40 MVA T/F and removing of earthing strips.

Dismantling of 40 MVA T/F 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 132 KV Sub-station, Asha.

Complete drain out of T/F oil from the existing 40 MVA T/F-I into empty oil drums/ oil tanker.

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

Overhauling of diverter switch and bucholz relay 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 fresh T/F oil and removed the slug from bottom.

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

Complete, erection of 40 MVA T/F-I by erection of radiator, conservator tank, bushing with its turrets (if available) connection 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 completion 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 contractor and taking the BDV value periodically till the required value is achieved of T/F oil.

Carriage of oil tanker 50 KL including loading, unloading & carriage apporx. 140 Km from 400 KV Sub-station, Bareilly to 132 KV Sub-station Asha (Hardoi)

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Perfect Power Transformer Associates