Name of Work:Repair/Rewinding of 750KVA Transformer of Base Complex
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Repair/Rewinding of 750 KVA, 11 KV/415 V Power TransformerThe work shall include the following:Complete RewindingComplete rewinding of HV and/or LV windings using copper conductor/wire only.Transformer OilProviding, filtration, and testing of transformer oil to meet applicable IS/IEC standards.Replacement/top-up of oil, if required.Oil Leakage RectificationIdentification and complete arrest of all transformer oil leakages, including replacement of gaskets, seals, and associated components.PaintingPainting with one coat of red oxide and two coats of smoke grey/green colour.Testing & Quality AssuranceCarrying out all routine and pre-commissioning tests such as: IR tests, Winding resistance,Oil BDV test etc.Replacement of LT Jumpers/ConnectorsReplacement of LT Jumpers/connectors with suitably rated AL Bus bars and connecting to the existing Bus bar at LT side.Associated Works & SparesSupply and replacement of all required spares, consumables, accessories, and materials necessary for complete rewinding, testing, and making the transformer ready for operation.Dismantling, Transportation & Re-installationDismantling of the transformer at site.Loading, transportation to the contractor’s workshop, and unloading after completion of repair.Transportation back to site, placement, erection, reconnection, and commissioning including all accessories.Standby Transformer ArrangementArrangement and deployment of a standby transformer of a minimum 750 kVA capacity for the entire duration during which the existing transformer is under repair.Installation, commissioning, and decommissioning of the standby transformer shall be entirely within the contractor’s scope. Necessary Test certificates also to be provided.
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