Replacement of damaged electro-mechanical components of 180 HP slipring of unit no. 3 installed at pumping station Sounthian stage-1st and repair to 5000 GPH x 240 meter head HC pump motor set installed at pumping station Rathian.

Amount

Replacement of damaged electro mechanical components of 180 HP slipring motor unit no. 3 installed at pumping station Sounthian stage-1st 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. Dismantling the rotor and removing / extracting damaged / burnt copper strips and replacing the same with new copper strips 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 further includes welding, turning and finishing to bearing size of rotor shaft alongwith replacement of old wornout bearing 6413-01no. with a new one and thereafter 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 slirping assembly, bracket-3nos. and carbon bushes-6nos. Installation of motor on the base frame and testing of complete unit on no and full load conditions. Complete job includes cost of material, manual carriage charges, hire charges of tools and tackles, skilled labour charges etc. Rebate, if any, should be quoted separately.

Repair to 5000 GPH x 240 meter head HC pump motor set installed at pumping station Rathian by way of disconnecting of all electrical connections, decoupling of pump from motor, carrying pump-motor set from pumping station to road side by way of head load and then to work shop by mechanical transportation. Providing, fabrication and fitting of new pump shaft as per sample. Providing, fabrication and fitting of new impeller 05 numbers, fabrication /fitting of neck rings 06nos. Job also includes repairing of 6nos. diffusers and providing and fitting of new diffusers 3nos., shaft protection sleeve 2nos., gland plate-2nos. with check nut 2 nos. Providing and fitting of new bearings N204 and N205 1no each. Job further includes providing and fitting of bearing housing assemblies at NDE and DE. Providing fabrication and fitting of new tie bolts with nuts. Providing, fabrication and fitting of new coupling pulley set. Carriage of pump set back to pumping station by using manual labour tools and tackles and mechanical transport. Coupling pump motor set and making proper alignment and testing the pump set on load at site. Providing and fitting of nuts and bolts and leather flanges at delivery and suction side. Replacement of damaged nuts, bolts and rubber bushes. Complete job includes cost of material, labour charges including to and fro carriage, transportation charges. Rebate, if any, should be quoted separately.

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS

G S ENGINEERING WORKS