HPSEBL/GPHD/DB-9/2025-26-106

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Tender Inviting Authority: Resident Engineer, Ganvi Power House Division, HPSEBL, Jeori.

Name of Work: Comprehensive Refurbishment and functional revalidation of 66kV GIC Interruptor Assembly of Ganvi Stage 2

Contract No: HPSEBL/GPHD/DB-9/2025-26-106

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Sl. No. Item Description Item Code / Make Quantity Units Estimated Rate in Rs. P Addition / Deduction Addition / Deduction Values Currency Convertion against each Item Quoted Currency in INR / Other Currency BASIC RATE In Figures To be entered by the Bidder Rs. P Excise Duty VAT Freight Charges ( Unloading & Stacking) Any Other Taxes/Duties/Levies Other Taxes 2 IIIrd Party i.e DGS&D / RITES etc Inspection Charges @0.34%+Service Tax Less for Cenvat Credit,if any respect of Supplies Under full Excise Duty Category Comprehensive Refurbishment and functional revalidation of 66kV GIC Interruptor Assembly of Ganvi Stage 2. In Rs. TOTAL AMOUNT With Taxes TOTAL AMOUNT In Words

1 Scope encompasses the complete mechanical and electro-pneumatic overhauling of the 66 kV GIC Interrupter Assembly puffer-type quenching module and associated drive kinematics, inclusive of disassembly, dimensional assessment, and defect rectification of the actuator mechanism, linkage train, and auxiliary control interfaces. The work shall include inspection and conditional replacement of deteriorated or non-conforming components such as FSA-type auxiliary cam switch modules, gas density relief and safety valve assemblies, selector/TNC interface switches, trip and close solenoid coils, mechanical limit detectors, torque transmission couplers, cam followers, gear trains, bush bearings, latch assemblies, and operating lever substructures. Following reassembly, the interrupter system shall undergo a complete operational validation encompassing mechanical endurance and synchronicity verification for all command sequences — O-CO, C-O-C, O-C-O — under both electrically actuated and manually driven spring-charging modes. Proper tensional pre-loading and energy storage verification of the spring operating mechanism shall be performed, with subsequent calibration of the motorized charging unit. gas integrity shall be re-established with renewal of elastomeric sealing gaskets, O-rings, and gas path interface joints in accordance with OEM sealing protocol and IEC 62271-100 specifications. The mechanism shall be lubricated with manufacturer-recommended dielectric-compatible greases on all dynamic contact surfaces and rotational pivots. Post-overhaul diagnostics shall include verification of auxiliary contact mapping, trip/close coil insulation resistance, contact timing analysis, and mechanical alignment under both remote and local supervisory modes. All rehabilitation activities, inspection logs, and test certificates shall be submitted for review and acceptance by the Engineer-in-Charge (EIC), site-specific commissioning protocols. 1 3 Job 110000 Excess(+) Full Conversion INR

Total in Figures 4 Construction of chamber for 100mm sluice plates item5 10 Nos

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