Services for Rewinding of the Stator of the 50 KVA DG Set at Tarujabba Depot

Pakistan State Oil Company Limited (PSO) invites quotations for specialized services involving the rewinding of the stator of a 50 KVA Diesel Generator (DG) Set located at the Tarujabba Depot in Karachi. This procurement is aimed at qualified contractors capable of performing detailed electrical and mechanical repair work to restore the DG Set to full operational condition. Items being procured: - Site visit and initial inspection of the 50 KVA DG Set - Troubleshooting and fault assessment of the stator winding - Disconnection of cables and accessories - Decoupling of alternator from prime mover - Dismantling of alternator to remove stator - Removal and handover of stator for rewinding - Stator inspection, rewinding, and repair using high-quality enameled copper wire - Inspection and possible replacement of diode bridge and AVR - Electrical testing of rewound stator including insulation resistance and continuity tests - Reinstallation of rewound stator and reassembly of DG Set - Rotor, shaft, and coupling alignment - Reconnection of electrical cables and accessories - Testing, load testing, and recommissioning of DG Set - Transportation of stator to and from workshop - Labour charges for handling and transportation The scope includes comprehensive technical work such as dismantling, rewinding with proper insulation, varnishing, curing, testing, and reinstallation. The contractor must ensure all materials and workmanship meet PSO's quality standards and provide a minimum one-year warranty on the work performed. The stator and associated components must be handled carefully to avoid damage during transportation and installation. Eligible bidders should have relevant experience in DG Set stator rewinding and repair, with appropriate PEC categories if applicable. FBR registration and compliance with tax requirements are mandatory. Earnest money and bid security details are as per PSO's instructions. The last date for submission of quotations is **12 October 2026**. Bids should be submitted to the PSO office at Tarujabba Depot, Karachi. Interested bidders are advised to conduct a site visit and carefully review the technical specifications before submission. A practical tip for bidders: Ensure all electrical testing equipment is calibrated and that your technical team is familiar with Perkins engines and Stamford alternators to avoid delays during inspection and testing phases. This tender offers a valuable opportunity for qualified service providers to engage with a leading energy company in Karachi, ensuring critical power infrastructure remains reliable and efficient.