REPAIRS TO DISTRIBUTION TRANSFORMER BUS TRUNKING SYSTEM SF6 CIRCUIT BREAKER CURRENT TRANSFORMERS VOLTAGE STABILIZERS BATTERY BANKS AND CERTAIN CONTROL CABLES AND SWITCH GEARS AT RCI HYDERABAD

Select, Excess (+), Less (-) Less (-)

Tender Inviting Authority: GE(I) R&D RCI HYDERABAD

Name of Work: REPAIRS TO DISTRIBUTION TRANSFORMER, BUS TRUNKING SYSTEM, SF6 CIRCUIT BREAKER, CURRENT TRANSFORMERS, VOLTAGE STABILIZERS, BATTERY BANKS AND CERTAIN CONTROL CABLES AND SWITCH GEARS AT RCI HYDERABAD

Contract No: GE(I) RCI/HYD/ OF 2025-2026

Sl No. Item Description Item Code / Make Quantity Units Estimated Rate 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. Ps. 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

Supplying, laying, jointing, testing and commissioning of 3 Core 120 Sqmm, 11000 volts grade, Earthed, HT XLPE insulated, insulation screened with extruded semi-conducting compound in combination with copper tape (0.3 KA for one second), cores laid up, PVC inner sheath with fillers, galvanized steel flat strip armoured, heavy duty, electric cables, with multistranded aluminium conductor, conductor screen with extruded semi conducting compound and overall PVC sheathed cable as per IS-7098 (Part-2) 1988 with latest amendments, replaced with burntout HT Cable laid in trenches / passing through pipe/duct/road crossing or fixed on poles, walls with suitable size clamps made out of mild steel flat iron including jointing material such as crimping type lugs, brass cable glands, heavy duty double compression type etc., including disconnecting and taking down unserviceable cable complete all as specified and directed for the following sizes:- Note : Earthwork Excavation, sand cushioning, GI pipe and cable protection will be measured and paid separately. 450 RM Excess(+) Full Conversion INR

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting out in hard/dense sol complete all as specified and directed. 182.25 CUM Excess(+) Full Conversion INR

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cms complete all as specified and directed. 127.65 CUM Excess(+) Full Conversion INR

Removal of excavated soil to a distance not exceeding 50 mtrs and deposited where directed at a level not exceeding 1.5mtrs above the starting point all as directed. 54.6 CUM Excess(+) Full Conversion INR

Supply and spread natural dry river sand for cable cushioning in trenches and punned down all as specified and directed. Note : Prunned thickness will be measured for payment. 32.4 CUM Excess(+) Full Conversion INR

Supply and lay un reinforced pre cast concrete cable cover class HV type I flat size 300X180mmX40mm all as specified and directed. 2222.2 Each Excess(+) Full Conversion INR

Cutting of existing bituminious / PCC road or flooring / plinth protection, for laying of GI pipe in road intersection for passing of HT XLPE cable including excavation in any type of soil, returning and filling in and making good top 30cm of the trench by providing PCC 1:2:4 type B1 using 20mm graded stone aggregate to flush with existing road surface complete all as directed. 20 RM Excess(+) Full Conversion INR

S&F, 150mm dia GI pipe light grade fixed to walls / poles or laid in trenches, road crossing etc., for protection of underground cable / earth strip including sealing ends with hessian cloth impregnated with bituminous compound in ground and with teak wood bushes for ends fixed on walls / poles complete all as specified and directed 20 RM Excess(+) Full Conversion INR

S&F in repairs of auxiliary power supply system of 110 Volts, 30 Amps for protection of VCB panel including synthetic rubber chamber, testing and commissioning complete by using a set of 55 Nos maintenance free lead acid batteries of 2 volts 80AH capacity each complete all as specified and directed. Note : The amount of batteries replaced will be measured and paid seperately. 1 Each Set Excess(+) Full Conversion INR

S&F in repairs of 55 Nos maintenance free lead acid VRLA batteries of 2 volts 100AH capacity each for auxiliary power supply system of VCB panel protection including testing and commissioning complete all as specified and directed by Engineer-in-Charge. Make of Battery : AMARARAJA / EXIDE 1 Each Set Excess(+) Full Conversion INR

Man-day services for checking of battery charger of battery banks, 110V DC control supply including checking of each cells OCV / Charger voltage & current complete all as specified and directed. 4 Each Job Excess(+) Full Conversion INR

Disconnecting the electric supply to the transformer, opening the transformer by unscrewing bolts from the top cover of the transformer, draining out of transformer oil into a container upto required level for arresting the leakage in the transformer, taking down of unserviceable HV and LV bushes from the transformer if necessary, replacement of top cover gasket, HV and LV side bushes gasket, buchholz relay gasket, bolts, nuts and washers, with new ones required. Soldering work if necessary while fixing the bushes, and re-fixng the same for transformer of capacity upto 250 KVA complete including testing the transformer after repairs all as specified and directed. Note : (i) HT / LT metal studs, HT / LT bushes and gaskets of HT and LT side will be measured and paid for seperately as supply only under Sl Nos 5 to 16 here-in after. (ii) Nuts, bolts, washers, petrolium jelly, grease, CTC required are deemed to be included in the unit rate quoted. (iii) Filteration of drained out transformer oil will be measured and paid for separately. 5 Each Job Excess(+) Full Conversion INR

All as per item No. 12 above but for capacity above 250 KVA and upto 500 KVA 10 Each Job Excess(+) Full Conversion INR

All as per item No. 12 above but for capacity above 500 KVA and upto 1000 KVA 10 Each Job Excess(+) Full Conversion INR

All as per item No. 12 above but for capacity above 1000 KVA and upto 1600 KVA 10 Each Job Excess(+) Full Conversion INR

Supply and replace LT bush rods with metal parts suitable for transformers of any make and of capacity upto 250 KVA all as specified and directed by Engineer-in-Charge. 5 Each Excess(+) Full Conversion INR

All as per item No.16 above but of capacity above 250 KVA and upto 500 KVA. 10 Each Excess(+) Full Conversion INR

All as per item No.16 above but of capacity above 500 KVA and upto 1000 KVA. 10 Each Excess(+) Full Conversion INR

All as per item No.16 above but of capacity above 1000 KVA and upto 1600 KVA. 10 Each Excess(+) Full Conversion INR

Supply replace HT bush rods with metal parts suitable for any make of transformers upto 250 KVA capacity all as specified and directed by Engineer-in-Charge 5 Each Excess(+) Full Conversion INR

All as per item No.20 above but of capacity above 250 KVA and upto 500 KVA. 10 Each Excess(+) Full Conversion INR

All as per item No.20 above but of capacity above 500 KVA and upto 1000 KVA. 10 Each Excess(+) Full Conversion INR

All as per item No.20 above but of capacity above 1000 KVA and upto 1600 KVA. 10 Each Excess(+) Full Conversion INR

Supply and replace set of top cover gasket for transformers of capacity upto 250 KVA all as specified and directed by Engineer-in-Charge. 5 Each Excess(+) Full Conversion INR

All as per item No.24 above but of capacity above 250 KVA and upto 500 KVA. 10 Each Excess(+) Full Conversion INR

All as per item No.24 above but of capacity above 500 KVA and upto 1000 KVA. 10 Each Excess(+) Full Conversion INR

All as per item No.24 above but of capacity above 1000 KVA and upto 1600 KVA. 10 Each Excess(+) Full Conversion INR

M&L, locating fault in 11 KV HT underground cable of any sizes with the help of fault locator vehicle organized from TSSPDCL/TSTRANSCO by injecting necessary high voltage to the faulty cable within 12 hours of time from time of reporting of fault all as directed by Engineer in Charge. Note : Quoted rate shall deemed to be included the necessary charges towards liaisoning for arranging fault locating vehicle, transportation of trained technicians and charges payable to Electricity Department. 5 Each Job Excess(+) Full Conversion INR

Disconnecting the electrical supply to 132 / 11 KV, 8 MVA transformer, conducting TAN delta and capacitance test EHV Bush by the authroised agency approved by Electrical Inspectorate of Telangana State Electricity Board and submitting the report in triplicate all as specified and directed. 21 Each Excess(+) Full Conversion INR

All as per item No. 29 above but for Current Transformer 21 Each Excess(+) Full Conversion INR

Disconnecting the electric supply, removing the HT cable connections of the defective Distribution transformer 11 / 440 V upto 1000 KVA capacity, outdoor / indoor type any make, taking down from platform with the help of crane suitable for lifting upto 1000 KVA Transformer or using lifting jacks, loading into goods carrier with load capacity to load upto 1000 KVA Transformer and transporting the same carefully to workshop for necessary repairs, taking all necessary precautions to avoid possible damage during transit and returning the same after carrying out repairs and re-installation at the same location using crane, re-establishing connections on HV and LV sides complete all as directed. Note: Hire charge for crane and Trailer, charges for loading / unloading and transportation are deemed to be included in quoted rate. Any damage to the transformer by the contractor during dismantling, transporting and re-assembling of transformer shall be made good without any extra cost to government. Decision of Accepting Officer shall be final and binding. 1 Each Job Excess(+) Full Conversion INR

32. Opening top cover upto 1000 KVA capacity transformer, opening of top cover and draining out the Transformer oil, removing the inspection cover, lifting the core with suitable crane and cleaning all healthy parts including coils, laminations, tank, tap changer including sleeves, drying of assembled core and winding in oven upto required IR values, re-assembly of transformer by tanking the dried core and winding assembly, fixing of all oil valves, fittings of accessories, making terminal connections to external bushings, including painting of transformer tank externally with two coats of enamel paint and internally with two coats oil resistant paint, complete Routine tests, replacing unserviceable LV / HV bushings, washers, oil seal, gaskets of inspection cover, radiators, HT Cable box, LT cable box with new ones if necessary complete all as specified and directed. 1 Each Job Excess(+) Full Conversion INR

Note : (i) HV / LV bush, copper insulation of LV / HV, transformer oil, LV / HV coils, oil seal gaskets of inspection cover, radiators, HT Cable box, LT cable box will be measured and paid separately as 'Supply Only' under relevant items. Labour elements for fixing of spares / parts mentioned as 'Supply only' is deemed to include in the unit rate quoted.

(ii) Transportation to Workshop and return will be measured and paid separately.(iii) Testing of transformer as specified at Sl item No 38 of BoQ will be measured and paid separately. (iv) Any hardware and minor items like nuts, bolts, washers, petroleum jelly, grease, CTC required for complete job are deemed to included in the quoted rate. (v) Filtration of transformer oil at site after installation will be measured and paid separately but for carrying out Routine tests after repairs in workshop shall be deemed to included in quoted rate.

(vi) All routine tests shall be carried out on Transformer in the presence of representative nominated by the Accepting Officer before dispatch of Transformer after carrying out repairs to the work site. (vii) Contractor shall submit 12 months guarantee for no oil leakage in transformer from certified date of commissioning of transformer and if any defects are noticed during this period the same shall be rectified free of cost. (viii) Painting, oven charges, labour for replacement of gasket, LT / HT bushes and breathers are measured and paid seperately

M & L for providing of new LV Coil re-insulation in place of damaged coil 210 Per Kg Excess(+) Full Conversion INR

M & L for providing of new HV Coil re-insulation in place of damaged coil 264 Per Kg Excess(+) Full Conversion INR

Providing of new copper winding in place of damaged winding for HV 264 Per Kg Excess(+) Full Conversion INR

M&L for conducting the following tests after repairs of transformers upto 1000 KVA including submitting the test report. (i) I.R values of HV to LV, HV to Earth and LV to Earth. (ii) winding resistance. (iii) Ratio test (iv) No-load test (v) Short circuit test (vi) Dielectric strength of oil (vii) Transfomer tap switch positions Note : contractor shall arrange all measuring instuments/equipment for testing of transformer. 1 Job Excess(+) Full Conversion INR

Supply and topping up transformer oil conforming to IS: 335 (1993), dielectric strength not less than 60 KV at 2.5 mm gap in various capacities distribution transformers installed at various indoor and outdoor sub stations complete all as specified and directed. Make: Power oil / SERVO / Castrol / Shell. 2550 Ltr Excess(+) Full Conversion INR

Dehydration of transformer oil of various capacities distribution transformers installed at various indoor and outdoor transformers with ultra high vaccum filtration machine to obtain the dielectric strength of 60 KV at 2.5 mm gap complete all as specified and directed. 20000 Litre Excess(+) Full Conversion INR

Supply, install, test and commissioning of neutral grounding register (NGR) of value 14.5 Ohms for one 8 MVA 132/11 KV power transformer 1 Each Excess(+) Full Conversion INR

Supply and fix in repairs of unserviceable Heater 80 watts in VCB panel at various Sub Stations / MRS 10 Each Excess(+) Full Conversion INR

Supply and fix in repairs of unserviceable Thermostat suitable for heaters in VCB panel at various Sub Stations / MRS 10 Each Excess(+) Full Conversion INR

Supply & Fix in repairs 11KV, 400 / 630 / 800 Amps HT VCB Vacuum Interrupter Bottles complete all as specified. 9 Each Excess(+) Full Conversion INR

Taking down the defective air breathers from the transformers, supply and fix new breathers with flange type 1/2 Kg bottle suitable for step down distribution transformers of any make and capacity ranging from 63 KVA to 160 KVA including filling of new silica gel in breathers complete all as specified and directed. 4 Each Excess(+) Full Conversion INR

Taking down the defective air breathers from the transformers, supply and fix new breathers with flange type 1 Kg bottle suitable for step down transformers of any make and capacity ranging from 315 KVA to 500 KVA including filling of new silica gel in breathers complete all as specified and directed. 6 Each Excess(+) Full Conversion INR

Taking down the defective air breathers from the transformers, supply and fix new breathers with flange type 2 Kg bottle suitable for step down distribution transformers of any make and capacity ranging from 630 KVA to 1500 KVA including filling of new silica gel in breathers complete all as specified and directed. 5 Each Excess(+) Full Conversion INR

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