Repairs to 63 KVA transformer at LIS Chung along with allied electromechanical works.

Amount

Disconnecting the 63 KVA electric transformer from the input and output connections, from HT and LT side loading the electric transformer using manual labour & crane /chain pulley block in a vehicle and then shifting it to workshop for repairs. Dismantling of the 63 KVA transformer, at workshop by way of extracting out the sledged oil ,damaged HT coils & LT coils, LT bushes-03 no., HT bushes-03 no., damaged insulator, rubber gasket, nuts and bolts. Rewinding of 3 no . HT leg . & reconditioning of 3 no. LT leg with specified wire gauge which includes proper tapping and insulation. Providing and fitting of LT and HT bush rod sets, new insulator, rubber gasket, new copper nuts and bolts and other necessary items .Lowering of the coils inside the sump of the transformer ,and then fitting of top channels, and support arms Providing/filling with 120 liters T-oil for topping up of transformer. Refitting of the top cover, Testing the continuity of each phase and securing all connections. Shifting the repaired electric transformer back to site i.e; LIS CHUNG, unloading and installing at transformer hoisting channel with the help of crane and skilled manual labour, connecting of HT and LT supply, commissioning and testing of the 63 KVA Transformer on part load and full load at site. Job includes repair to 100 Amp. main switch by way of replacement of damaged thimbles by preparing cable ends and replacement of main switch brunt links\parts set. The job also includes the cost of material, labour charges, sundry items loading & unloading, to & fro carriage, testing and installation and hire charges of the crane used during the execution of job.

Rebate on Old Parts

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS

NATIONAL ELECTRO-MECH COMPANY