Repair of 180 HP slipring motor unit no. 6 installed at pumping station Salmay stage-2nd (Old).

Amount

Repair of 180 HP slipring motor unit no. 6 installed at pumping station Salmay stage-2nd (Old) by way of disconnecting the electrical connection, decoupling from pump, unfastening from base frame, shifting to a safer place in the pump room, dismantling the slipring assembly, opening the end covers, extraction of rotor and subsequently shifting to workshop. Cutting the external bands and dismantling the rotor and removing / extracting damaged / burnt copper strips by way of gas / mechanical cutting, cleaning the rotor slots with organic solvent, and subsequently providing and fitting of new copper strips conforming to dimensions of rotor slots, complete with superior insulation material alongwith fixing of copper loops and completely brazing the rotor. The job further includes insulating each end of copper strips with the glass tape and varnishing of rotor with quality varnish by dipping and baking it in electric oven so that the strips are firmly secured in the slots and damage because of vibration due to electric resonance is avoided. Job also covers replacement of copper connection cables-3nos with thimbling and insulation. Job also includes replacement of old wornout bearing 6413-01no. with a new one. Shifting the rotor back to site, cleaning the stator with organic solvent to remove dust particle and other foreign material etc., fitment of rotor, closing the end covers, replacement of damaged slipring assembly, bracket-3nos. and carbon bushes-12 nos. Installation of motor on the base frame, coupling with the pumping unit and testing of complete unit on no and full load conditions. Complete job includes cost of material, manual carriage charges, skilled labour charges, hire charges of tools and tackles, etc. Rebate, if any, should be quoted separately.

PERFECT ELECTRICAL WORKS (BID ID -2186367)

GS ENGG WORKS (BID ID -2188695)