MID/J/86

Repair to 250 KVA electric Transformer installed at LIS JATHANA(Distt Kathua)

Disconnecting the 250 KVA electric transformer of LIS Jathana from the input and output connections, from HT and LT side. Lowering/dismounting the transformer from the platform using tools & tackles and then loading the electric transformer in the tractor trolley using manual labour/chain block, other tools & tackles for shifting it to the motorable roadside, then unloading the electric transformer from tractor trolley and loading it into mechanical transport, using manual labour /crane, for shifting it to workshop for repairs. Unloading at workshop and then dismantling the 250 KVA transformerat workshop by way of extracting out the damaged HT coils & LT coils, LT bushes-04 nos., HT bushes-03 nos., HT & LT bush rods, rubber gasket, nuts and bolts, draining out the existing/old transformer oil in clean drum/collection vessel. The job includescomplete rewinding of 3 nos. HT leg coil assembly with aluminium wire of appropriate gauge with proper insulation & taping, reconditioning of 3 nos. LT leg coils which includes proper insulation. Keeping the coil assembly in the oven to make moisture free so that requisite megger value is achieved. Providing and fitting of new LT and HT bush rod sets (including bushes), rubber gasket, new brass nuts and bolts and other necessary items for proper functioning of transformer. Cleaning the sump/container of transformer with appropriate chemical agent to remove all carbon deposit. Lowering the assembled coil assembly in the sump of the transformer and then securing it with the body of the transformer. Filling the existing transformer oil in the sump after giving heat treatment/Reconditioning to make it moisture free. The job includes providing and filling of fresh/new 100 Litres Transformer oil for topping up the transformer. Refitting the top cover by providing and fitting requisite gasket, nuts and bolts of appropriate sizes. Testing the continuity of each phase and securing all connections.The job includes painting of transformer body with two coats of standard/reputed make enamel paint, over one coat of red oxide primer, including surface preparation by cleaning of rust/dust, and cost of labour and materials complete. The job further includes loading of repaired transformer into mechanical transport using manual labour/crane, shifting of repaired electric transformer back to the site i.e. LIS Jathana, in the same manner as transported from site to workshop, unloading and installing at transformer hoisting channel/platform with the help of tools & tackles, skilled manual labour. Connecting of HT supply. Allowing the transformer to charge at no load and then connecting the LT supply and testing the transformer on full load at site. Job also includes providing & fitting at site of 01 no. 11 kV Pin insulator of appropriate rating. The complete job includes cost of material, (skilled/unskilled) labour charges, loading & unloading, to &fro carriage, testing and installation and hire charges of the crane, tools & tackles used during the execution of job. Complete Job. Note: 1.The firm should provide / offer rebate on old material/parts. 2.The contractor/firm must ensure safety mechanisms for the workers and material involved during the execution of job at the site, as the sole responsibility lies with the contractor/firm. 3.The tenderers are requested to visit the site and quote the rates as per site conditions. Any modifications/ alterations of the job, absolutely necessary if required at the time of execution may be done as per actual site conditions.

Rebate on Old Parts

M/S GOPAL ELECTRICAL (BID ID -2575049)