NCTPS I ES Circle EM I Division S Dn I Complete overhauling of 2 MVA UST 1A Sl No VEP 44A 702 1 6 MVA ESP 2A Sl No VEP 44B 717 Service Transformers during Unit 1 Unit 2 Annual Capital Overhauling period for the year 2023 24 at NCTPS

Amount

Disconnection of HV Power cable & its terminal box and earth flats.

Disconnection of LV Power cable & terminal box / LV bus duct terminal connection & Terminal Box.

Draining of existing oil from the transformer

Opening of Top cover and removal of core & winding from transformer

Cleaning the transformer core with hot oil and checking the core tightness

Improving the IR value (drying the transformer core and windings in hot oven)

Changing all gaskets, washer and oil seals

Painting of transformer both inside and outside & (including Inserting the core and winding cost)

Releasing of air

Complete testing

Cleaning the radiator and cable box (HV and LV side)

Filling up of filtered oil after creating vacuum including oil filtration cost (Transformer oil Supplied by Board)

Assembling and closing of top cover

Fabrication of Aluminum bus bar: Cutting of Bus duct as per the required height and inner Bus bar cutting as per the required height. Removing the painting coating in the Bus bar and cleaning. Welding of inner Bus bar and shaping and painting, Welding of Bus duct etc.,

2MVA/1.6 MVA service transformer Erection and commissioning

Supply of Gasket for 2MVA & 1.6 MVA Transformer

Crane hire charges for loading & unloading of Transformer & its accessories and erection & commissioning of 2 MVA & 1.6 MVA Transformer

Transportation charges from NCTPS-I site to work site & from work site to NCTPS-I after overhauling. (Transformer & its accessories and 20 Nos. of new Transformer oil barrels) (For 2 Nos.)

Tools & Plant (1% of Labour)

KRAM ELECTRICAL WORKS