81/MID/AN

Providing and fitting of new parts of LRS of 650 HP capacity motor BHEL make at LIS Ranjan. By way of disconnecting of all electrical connections of LRS of each pumping unitat site of installation by removing all interconnected cables from motor segregators to LRS bush rods. Extraction of all damaged parts such as bush rods, moving and fixed copper contacts, broken ceramic insulators, draining out the soda water solution, cleaning of sump tank to remove algae rust formation. Providing and fixing of new appropriate moving silver coated copper contacts 03nos., fixed silver coated copper contacts 36nos., new insulators,new nut/ bolts and washers. Complete painting of the LRS by providing 2 coats of red oxide primer on all surfaces, giving ample time for drying between successive coats. Applying two coats of smoke grey paint on all surfaces after scrubbing, washing before application of paint material. Greasing of gear box for smooth operation. Refilling / replenishing of soda water solution approx 50 ltrs. for each inside the LRS sump. Reconnecting of all electrical connections and testing of LRS on no load/full load condition. Complete job involving cost of material, labour charges, hire charges of tools and tackles required to undertake the job at site.

Providing and fitting of 4.5m long 1000 mm2 single core Aluminum unarmoured cable of reputed as per IS 7098 (Part 1) 1988 with latest amendments. Dismantling of the outlived/worn out 1000 mm2 cables of each single phase from 3 Phase segregator to Liquid Rotor Starter of BHEL make 650 HP HT motor installed at LIS Ranjan by way of removal of all fasteners, un-securing all joints and clamps from the installed position using ladders and manual labour. Carriage of extracted cables to safe area. Providing and replacement of XLPE insulated, heavy duty unarmoured Aluminum conductor 1000 mm2 conforming to relevant IS standards 11 kV in three phase connection, each phase having separate cable connection ( approx. total length for all phases- 13.5 m) Providing and fixing of new 1000 mm2 Standard/reputed make straight through, long neck Aluminum thimbles on both side using crimping tools, securing the joints tightly with galvanized nuts and bolts, proper taping of all joints. Complete job with cost of material, labour charges, carriage of material to site, Commissioning and testing of the cables on part and full load at site.

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