MID/AN/13

Repairs to the 250KVA 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 hydraulic 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 damage coils with chain pulley block. Rewinding its 4 nos. H.V. coil & 1 no. L.V. coils with superior wire of requisite size/gauge. Heating the rewinded coils to attain the required megger value. Replacement of damaged 03 nos HT & 4 nos. LT bush and its metal parts as per sample Providing /Fitting of new gasket, L.T. terminal plate, nuts, bolts, etc. Providing/Topping up of 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 platform with the help of hydraulic 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.

Replacement/ repair to LT control Panel cum star delta of 40 HP HC pumping unit No 1 of LIS Saranoo by way of disconnecting the electrical supply. Repairing/ servicing of its 03 Nos contactors by way of extracting all thee contactors from the panel along with burnt MCCB. Cleaning of extracting of contact kit of MNX 70 contactor (02 Nos) with CRC spray. P/F of new MNX 50 contactor kit 01 No in place of damaged/ burnt one.P/F of new MCCB of any reputed make in place of brunt MCCB. This job also includes replacement of damaged wiring, fitting of repaired/ serviced contactors with new MCCB at their respective places. Making of all the electrical connection after proper thimbling and testing the panel on no load and full load at the site. Job includes cost of material, labour charges.

BEE AAR ENTERPRISES

Rishabh Electricals and Mechanical Works