Repair rewinding of 2 nos Motors of pumping unit no 1 and 3 along with allied works at LIS Rathua and repairs to 400 Amp main switch and 250mm dia foot valves at LIS Kukerian

Amount

Repair/rewinding of 2 no.s Motors of pumping unit no-1 and 3 along with allied works at LIS Rathua

Dismantling of the damaged & burnt 40HP electric motors of Pumping unit no-1 and 3 of LIS Rathua from base frame, pump & starter electrical connections, head load to nearest Kacha tractor road by manual labour & loading in the tractor trolley for transportation to main road approx. 2Km and unloading thereof. Again unloading the motors from tractor and loading in the other transport vehicle by manual labour for further carriage to workshop for repairs/rewinding. Back carriage to site after repairs and reinstallation, commissioning and testing on load conditions. Complete job

Dismantling of the 2no.s damaged 40HP Motors at workshop for extraction of burnt/ damaged windings, cleaning of stator slots and complete rewinding of the motors 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 with hiring charges of tools & tackles. Repairs to rotors of both motors by providing/fitting of new bearings (DE & NDE) after rebuilding of the rotor shafts and finishing to bearing sizes, making new keyway for coupling, providing/fitting of bearing end cover plates. Complete greasing of the bearing, providing/fitting of new cooling fan and side strainers. Complete job including cost of material and labour charges.

Dismantling the damaged 40 HP manually operated oil immersed star-delta motor starter of Unit-1 and 3 from installed position after disconnecting all electrical connections on input as well as output side. Carriage of the starter to workshop for repairs; 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 transformer oil to both starters after de-moisturizing .Complete job including cost of material, labour charges and transport charges involved.

Repairs/servicing to the LT control panel for 3x40HP Motors of LIS Rathua damaged due to short circuiting. The job involves disconnecting the incoming and outgoing cables of L.T. control Panel. Repairing by way of complete dismantling of the damaged cables, removing carbon from every nook & corner of the LT control panel and then cleaning with recommended chemicals. Servicing of main incomer 630 Amp and 2No.s outgoing, 200Amp. MCCBs of LT control panel by cleaning/servicing of all the parts by recommended chemicals making them free from carbon. Insulating the bus bars wherever required. Providing/Fitting of indicator lamps 3no.s and 4 no.s aluminium thimbles. Complete job includes cost of material and labour charges for skilled and semiskilled labour, hire charges of tools and tackles to be employed at site for execution of job including the out station charges etc. Complete Job

Rebate on account of old parts

Repairs to 400Amp main switch and 250mm dia. foot valves at LIS Kukerian

Repairs/servicing of the 400Amp main switch of LIS Kukerian by way of disconnecting the HT fuses and then cutting damaged incoming aluminium cables of main switch and providing/fitting of 3 no.s aluminium thimbles to them and making connections. Also providing/fitting of 2no.s 400Amp HRC fuses in place of damaged ones. Complete job includes cost of material and labour charges for skilled and semiskilled labour, hire charges of tools and tackles to be employed at site for execution of job including the out station charges etc.

Servicing of 2 no.s choked foot valves 250mm dia. of pumping unit No. 1&3 at L.I.S Kukerian. The job includes extraction of foot valves from the sump after disengaging from the suction pipes and cleaning of mud/silt from pipes and foot valves using special tools and tackles. Complete dismantling of foot valves and then providing/fitting of new leather washers cut to size, adjustment of flaps with repairs to hinges. Reassembling the foot valves along with suction pipes by providing/fitting of new R.I sheets and nuts, bolts etc. Complete job includes cost of material used and labour charges for skilled and semiskilled labour to be employed at site for execution of job including the out station charges etc. Complete job

PERFECT ELECTRICAL WORKS

NATIONAL ELECTRO-MECH COMPANY