Repair to 250 KVA Electrical Transformer along with allied works at LIS Old Malpur and Repair/rewinding of 70H.P Motor of pumping unit no-5 along with allied works at LIS Batera

Repairs to 250 KVA Electrical Transformer along with allied works at LIS Old Malpur

Repairs to 250 KVA Electrical Transformer and allied works at LIS Old Malpur. Job includes dismantling of the transformer from HT and LT connections, lifting and lowering of the transformer from the platform on the ground with help of crane and manual labour and then shifting of the transformer to the workshop with help of mechanical transport. Job also includes opening of the top cover and taking out the old burnt/damaged copper coils from the casing of the transformer and then providing and fixing of new HV coils-04Nos & reconditioning of LV copper coils-03nos. Job also includes removal of old damaged HT Bushes-03 nos. & LT Bushes-04nos, damaged insulation, rubber gasket & providing and fixing of sundry items, new bush rods. Gaskets, internal insulation sleeves and tapping & then lowering of coils inside the sump of the transformer. Job also includes draining out the old T Oil from the transformer and heating to demoisturize it completely, cleaning and de-mosturising of the transformer casing, providing and filling of fresh transformer oil (approx.250 lts) along with heat treated old T-oil. Re-fixing the top cover with nuts and bolts of appropriate size and then loading and back shifting of transformer from workshop to site by means of mechanical transport and then mounting it on the platform with the help of crane, fitting at the appropriate place and then making connections on the HT and LT lines. Job also includes providing and fitting of aluminum thimbles on LT cables, testing the continuity of each phase and securing all connections. Complete job includes cost of material including rebate on old copper scrap, labour charges, tools & tackles charges required during the execution of repair works of the transformer and hiring charges of the crane. Complete Job.

Rebate on Old Parts

Repair/rewinding of 70H.P Motor of pumping unit no-5 along with allied works at LIS Batera

Dismantling of the damaged & burnt 70HP electric motor and starter of pumping unit no-5 of LIS Batera from base frame, pump & starter electrical connections. Also dismantling of the damaged 70HP manually operated oil immersed star-delta motor starter from installed position after disconnecting all electrical connections on input as well as output side. Carriage and shifting of the motor and starter by using manual head load to nearest road & loading in the vehicle for further transportation to workshop for repairs/rewinding at Jammu. Back carriage to site after repairs and reinstallation of both motor and starter, commissioning and testing on idle and load conditions. Dismantling of the damaged 70HP Motor at workshop for extraction of burnt/ damaged windings, cleaning of stator slots and complete rewinding of the motor with new copper wires of requisite gauge and specifications, standard make. Providing/ fitting of new insulation, packing material, then varnishing with superior quality varnish & drying in oven in controlled temperature. Complete job includes cost of material and labour charges. Repairs to rotor of motor by providing/fitting of new bearings (DE & NDE) after rebuilding of the rotor shaft and finishing to bearing sizes, making new keyway for coupling, providing/fitting of bearing end cover plates. Complete greasing of the bearing. Complete job includes cost of material including rebate on old copper scrap and labour charges. Repair to the starter by way of dismantling of the starter at workshop and replacement of intermediate bakelite rod, moving and fixed contact points, no volt coil, thimbles, overload protection relay, back carriage to LIS for re-installation, commissioning and testing on full load and no load condition. Providing and filling of approx. 10 litres of fresh transformer oil to starter after de-moisturizing .Complete job including cost of material, labour charges and transport charges involved.

Rebate on Old Parts

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