80/MID/AN

Repairs to 200KVA Transformer installed at LIS Thandapani. The job involves disconnecting all electrical connections and Lifting the transformer from its installed position and loading in the vehicle with the help of crane and shifting to workshop with mech. transport. Unloading at workshop . Disassembling the transformer at workshop by unscrewing the bolts of top cover and extracting the body with chain pulley block. Rewinding its H.V. & L.V. coils with superior aluminium wire of requisite size/gauge. Replacement of damaged HT/LT bush rods with the new bush rods as per sample. Providing /Fitting of new gasket, L.T. terminal plate, nuts, bolts, etc. Cleaning of the tank and drying it. Providing/Topping up of 100 litre transformer oil and heating the oil to make it moisture free. Lowering the windings back in the tank Assembling the transformer by tightening all nuts, bolts and using oil packing sheets wherever necessary. Loading in the vehicle and shifting back to site . Job includes placing of transformer on the foundation with the help of crane using skilled manual labour. . Fitting the transformer and restoration of electrical connections. Testing & commissioning on full load.. Complete job including cost of material, skilled and semi-skilled labour charges, loading & unloading at both ends and transportation charges as per site conditions of LIS.

Repairs to OHT Gantry installed at LIS Thandapani. The job involves the dismounting , dismantling and then complete rewinding of its 2HP Motor and then reassembling and refitting the motors at its installed position. Repairs to the remote switch of the crane. The job also includes the cleaning of the components of the crane from dirt and rust, lubrication of brushes and adjustment of the gear train for all the movements of the crane. The job also involves refixing of the slipped steel rope from its groove of the crane . The job includes cost of material, labour charges and all types of carriages involved and hire charges of tools and tackles required for the job. Complete Job

Repair to 4.5 cusec discharge 58 m head H.C. pump unit-3 at LIS Thandapani. The job involves de-coupling of pump from the motor and removing the top cover, extraction of impeller shaft assembly together with bearing bracket. Shifting the impeller shaft to road side by employing manual labour and then to workshop by mech. transport including loading and unloading charges at both ends. Separating shaft, impeller and bushes.Providing/fabrication of both the bushes as per sample. Making necessary repairs to bearing housing. Providing / fitting of bearings ( 6310-2 nos.) of reputed make. Providing/fabrication of neck rings (2 nos.) as per sample.. P/F of glands ( 2 nos.) as per sample . Re-assembling of impeller shaft assembly and shifting back to site and there after lowering at proper position, placement of oil seal and closing the top cover along with P/F new nuts,bolts . Coupling the pump and motor after proper alignment/adjustment. Priming the pump and testing on full load. Job includes cost of material, tools and tackles, labour charges, transportation charges at site of LIS. Complete Job.

Providing/ fixing of steel shutter with gear mechanism to pump house with allied works at LIS Thandapani. The job involves fabrication of steel shutter of required size of superior quality, carriage to the site of LIS by mechanical transport and shifting near to pump house by head load. Fitting of shutter to pump house of LIS. Complete job included cost of steel shutter, labour charges required for execution of job. Complete Job

NATIONAL ELECTRO-MECH COMPANY

G S ENGINEERING WORKS