REPAIR / RENEWAL/ MAINTENANCE OF CERTAIN TRANSFORMERS AND OTHER MISC WORKS AT MRS ADALPUR AND VARIOUS SUB-STATIONS UNDER GE SUKNA

Amount

Disconnection of HT/LT connection & earth connection, dismantling carefully of the under mentioned indoor/ pole mounted, outdoor/indoor type, Step Down Transformers of the under mentioned capacities from primary/ secondary side, transportation to workshop (particulars of the workshop shall be got approved by the contractor from the GE) by crane or any other mode for carrying out the repairs, opening of the transformer in the presence of Engineer-In-Charge and Contractor, preparing inventories for the serviceable & unserviceable parts/components, decanting transformer oil, storing the same in suitable container safely, opening the top cover, disconnection of the live parts, dismantling bushing, lifting core assembly, checking the winding slackness, winding burning, distortion of core, cleaning and drying the tank, core, varnishing, baking by oven heating, cleaning of tank, conservator, cooling tube and including necessary leak testing, lowering of complete core assembly inside the fully cleaned transformer after carrying out repairs, refilling of the tank with dehydrated Transformer oil, Topping up the tank with new transformer oil, testing as per the relevant I.S. in the presence of Engineer-in-Charge to meet the requisite parameters for satisfactory performance of the Transformer & submission of Test Report duly signed by the Engineer-in-Charge & Contractor to GE for his approval, after accord of approval by the GE, Transportation back of the repaired Transformer to the original site, re-installation at the original position, making connections of cables on primary / secondary side, commissioning & again testing, complete all as specified and directed :- Note:- The quoted rates shall be deemed to include for all the repairs, replacements, other elements etc, to make the Transformers fully functional & serviceable to the entire satisfaction of the GE. However the payment for the items/materials/ works as included under items No. 3 to 22.03 (as applicable for the capacity of the Transformer under item No. 1.01 to 1.03) herein-after, to the the extent required, ordered and executed/provided shall only be paid for seperately.

63KVA to 200KVA capacity, 11000/440 Volts (Make : Crompton Greaves/Voltamps/ETE/Stanelec/IEAC/MARSONS/ANY OTHER MAKE AS EXISTING).

250KVA to 350KVA capacity, 11000/440 Volts (Make : Crompton Greaves/Voltamps/ETE/Stanelec/IEAC/MARSONS/ANY OTHER MAKE AS EXISTING).

400 KVA to 750 KVA capacity, 11000/440 Volts(Make : Crompton Greaves/Voltamps/ETE/Stanelec/IEAC/MARSONS/ANY OTHER MAKE AS EXISTING).

M&L for carrying out the repairs to transformer, step down, 11/0.433 KV, 63 to 200 KVA capacity (Make : Crompton Greaves/Voltamps/ETE/Stanelec/IEAC/MARSONS/ANY OTHER MAKE AS EXISTING) at existing position on pole and/or on platform after disconnection of HT/LT connection & earthing lead, opening of transformer cover plate, taking out of transformer oil to a level as required and kept in clean & dry container for re-use of the same, repairing/overhauling of the defective parts/components including replacement of unserviceable items/components as directed, making connections of the transformer after repairs, topping-up the tank with the same transformer oil, dehydrated old oil and with new oil as required/directed and testing the Transformer, all as specified and directed. NOTE The quoted rates shall be deemed to include for all the repairs, replacements, other elements etc to make the Transformers fully functional & serviceable to the entire satisfication of the GE. However the payment for the items/materials/ works as included under items No. 3.01, 4.01, 9.01, 10.00, 11.00, 22.01 herein-after, to the the extent required, ordered & executed/provided shall only be paid for seperately.

Supply only porcelain bushing on HT side with Brass/Copper Stud assembly as per the existng duly threaded at both ends with and including oil seal, heavy gauge brass/copper nuts, washers suitable for the following transformers, complete all as specified and as directed, Make : PACTIL/JAIPURIA/ABI.

63KVA to 200KVA capacity, 11000/440 Volts (11000 volts grade bushing).

250 KVA to 350 KVA capacity, 11000/440 Volts (11000 volts grade bushing).

400 KVA to 750 KVA capacity, 11000/440 Volts (11000 volts grade bushing).

Supply only porcelain bushing on LT side, 1100 Volts grade with brass/copper stud assembly as per the existing duly threaded at both ends with and including oil seal, heavy gauge brass/copper nuts, washers suitable for the following transformers, complete all as specified and as directed, Make : PACTIL/JAIPURIA/ABI.

63KVA to 200KVA capacity, 11000/440 Volts.

250 KVA to 350 KVA capacity, 11000/440 Volts.

400 KVA to 750 KVA capacity, 11000/440 Volts.

Supply only of breather assembly having transparent MS body with top and bottom portion pressed with mettalic cover, suitable for fixing on existing pipe of size 15/20/25 mm bore as per site requirement for transformers of 63 KVA to 200 KVA (11 KV / 0.433 KV) capacity, complete all as specified and as directed. Note for Item Nos . 5 to 7 : Cost for provision of silica gel not included in the scope of above items.

Supply only of breather assembly transparent MS body with top and bottom portion pressed with metalic cover, suitable for fixing on existing pipe of size 15/20/25 mm bore as per site requirement for transformers of 250 KVA to 350 KVA (11 KV / 0.433 KV) capacity, complete all as specified and as directed.

Supply only of breather assembly transparent MS body with top and bottom portion pressed with metalic cover, suitable for fixing on existing pipe of size 15/20/25 mm bore as per site requirement for transformers of 400 KVA to 750 KVA (11 KV / 0.433 KV) capacity, complete all as specified and as directed.

Supply only silica gel of superior quality of 5 to 10 mm grade, blue in colour, complete all as specified and directed.

Supply only 6mm thick synthetic bonded rubberized cork gasket sheet for Top Cover and Primary / Secondary bushes for the following capacities of transformers, complete all as specified and as directed, maker RAMAN or existing make as approved by the GE :-

63 KVA to 200 KVA capacity, 11000/440 Volts

250 KVA to 350 KVA capacity, 11000/440 Volts

400 KVA to 750 KVA capacity, 11000/440 Volts

Supply only transformer Oil conforming to IS-335 (make : POWER OIL/HP/BP/SAVITA TRANSOL) for toping up /oil change of Transformers of any capacity at different locations, complete all as specified and as directed. Notes:- (i) The dielectric strenght of the transfomer oil shall not be less than 55 KV in 2.5mm gap electrode. (ii) Quoated rate shall also be deemed to include for testing of transformer oil from CPRI / Govt. approved lab as per relevant IS and submission of necessary test reports.

Vaccume dihydration with hot filteration plant of old transformer oil at different locations, after filteration, Di electric strength shall not be less than 55 KV in 2.5 mm gap electrode, complete all as specified and as directed. The contractor shall submit necessary Test Report for Di electric strength before dehyderation as well as after dehyderation from CPRI /Govt approved Lab as per relevant IS. The contractor's quoted rates shall also be declered to include for this element. Note:- Transformer Oil after dehyderation shall be measured and considered for the payment under the above item.

M&L for winding with & including new proper size DPC Copper wire duly provided with high quality paper insulation (TPI) suitable for HV (11 KV) coils for 11/0.433 KV Transformers, complete all as specified and as directed. Note:- Gauge and quality of Copper wire shall be as per existing and the same (including make of the wire) shall be got approved from GE before incorporation.

M&L for winding with & including proper size DPC Copper wire duly provided with high quality paper insulation (TPI) suitable for LV (1.1 KV) coils for 11 /0.433 KV Transformers, complete all as specified and as directed. Note:- Gauge and quality of copper wire shall be as per existing and the same (including make of the wire) shall be got approved from GE before incorporation.

M&L for winding with & including proper size DPC aluminium wire duly provided with high quality paper insulation (TPI) suitable for HV (11 KV) coils for 11/0.433 KV Transformers, complete all as specified and as directed. Note:- Gauge and quality of aluminium wire shall be as per existing and the same (including make of the wire) shall be got approved from GE before incorporation.

M&L for winding with & including proper size DPC aluminium wire duly provided with high quality paper insulation (TPI) suitable for LV(1.1 KV) coils for 11 /0.433 KV Transformers, complete all as specified and as directed. Note:- Gauge and quality of aluminium wire shall be as per existing and the same (including make of the wire) shall be got approved from GE before incorporation.

M&L for Rewinding and re-insulation of old serviceable retrieved super enamel copper wire (DPC) for H.V. (11 KV) coils for 11/0.433 KV Transformers and including provision of new high quality paper insulation (TPI), complete all as specified and as directed.

M&L for Rewinding and re-insulation of old serviceable retrieved super enamel copper wire (DPC) for L.V. (1.1 KV) coils for 11/0.433 KV Transformers and including provision of new high quality paper insulation (TPI), complete all as specified and as directed.

Supply only insulating materials like Nomax Paper, Amp Tube, Bakelite Tube, Glass Tape, Precompress Pan Card, Cotton Tape etc (other than insulating materials as included in the items for winding/rewinding of transformers) for assembly of the following capacities of transformers, complete all as specified and as directed, make: RAMAN or as per existing make as approved by the GE :-

63 KVA to 200 KVA, 11 KV / 0.433 KV.

250 KVA to 350 KVA, 11 KV / 0.433 KV.

400 KVA to 750 KVA, 11 KV/ 0.433 KV.

Supply only externally operated tap changer switch HT, 11 KV of 7 point, off load type, complete for transformer of capacity 63 to 200 KVA (11 KV/0.433 KV) to match with the existing of make: M.K. Enterprises or as per existing make as approved by the GE, complete all as specified and as directed.

Supply only externally operated tap changer switch HT, 11 KV of 7 point, off load type, complete for transformer of capacity 250 to 350 KVA (11 KV/0.433 KV) to match with the existing of make: M.K. Enterprises or as per existing make as approved by the GE, complete all as specified and as directed.

Supply only externally operated tap changer switch HT, 11 KV of 7 point, off load type, complete for transformer of capacity 400 to 750 KVA (11 KV/0.433 KV) to match with the existing of make: M.K. Enterprises or as per existing make as approved by the GE, complete all as specified and as directed.

M&L for spray painting for the following capacity of transformers by preparing the old painted and applying one coat of synthetic enamel paint, complete all as specified and as directed :- Make of Synthetic Enamel Paint: Berger (Butterfly) / Goodlass Nerolac Paints/Apcolite (ASIAN).

63 KVA to 200 KVA, 11 KV / 0.433 KV.

250 KVA to 350 KVA, 11 KV / 0.433 KV.

400 KVA to 750 KVA, 11 KV/ 0.433 KV.

2 MVA to 3.15 MVA, 33 KV / 11 KV.

Supply only oil temperature indicator with two micro switch, 3 metre capillary length, range 0-150 degree centigrade, alarm and trip mechanism, make : Precimeasure controls or of existing make as approved by the GE, complete all as specified and as directed.

Supply only winding temperature indicator with two micro switch, 3 metre capillary length, range 0-150 degree centigrade alarm and trip mechanism of make : Precimeasure controls or of existing make as approved by the GE, complete all as specified and as directed.

M & L for cement concrete (1:2:4) type B-2 (Using 40mm graded stone aggregates) for blocks etc including use & waste of necessary form work, complete all as specified and directed.

Dismantling of cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, complete all as specified and directed.

M & L for cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of preparation of exposed surfaces, application of one coat of red oxide primer and thereafter 2 coats of alluminiuam paint, complete all as specified and directed.

M&L in repairs earthing complete with galvanised steel earth plate electrode 600 x 600 x 6 mm thick, buried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below normal ground level, connected to galvanised earth strip of size 32 x 6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No.3, connected to earthing test point all as specified or indicated and including testing on completion, complete all as specified and directed by Engr-in-Charge. Note:- The unit rate shall also include for earth work in any type of soil, PCC 1:2:4 type B-1 chamber, RCC 1:11/2:3, type A1 cover 50 mm thick with 8 mm dia TMT bars @ 140 mm C/C, GI watering pipe 20 mm bore medium grade, funnel, wire mesh, GI pipe 40mm bore, light grade for protection of GI strip 32mm x 6mm upto test point and all other relevant works for entire completion of the Job etc.

S&F in repairs, 11 KV, 400 Amps, out door, tilting type, gang operated, air break off load disconnecting switch, triple pole, each consists of galvanized channel base HT insulator,non - ferrous knife and spring loaded contacts, arcing horn of adequate section to break magnetizing current of the transformer, horizontal GI pipe of adequate length for phase separation and for operation from ground level and operating handle, complete with locking arrangement on both ON and OFF position, all ferrous parts shall be hot dipped galvanized and non ferrous parts heavily tinned to withstand weather suitable for vertical mounting and conforming to IS 1818-1961, complete all as specified and as directed. Make - High tension switch gear Ltd / Jaipuria Brothers / SK industries / Pactil .

S&F in repairs, lightening arrester, non-linear metal oxide type, complete with and including all fittings, transmission / distribution class, discharge capacity 65 Kilo Amps suitable for 11 KV, out door type & also including necessary connection and fittings all as per IS-3070 Part-III and IEC 1994, complete all as specified and as directed. Make: High tension switch gear Ltd / Jaipuria Brothers/ SK industries / Pactil.

S&F in repairs, for HT Horn gap fuse unit suitable for 100A capacity, 11KV, single pole (Two post insulators per pole) with and including HT barrel fuse with holder and also including necessary connection to ACSR conductors, complete all as specified and directed, Make: High tension switch gear Ltd / Jaipuria Brothers/ SK industries / Pactil.

Supply, jointing and testing in repairs cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination, heat shrink type joint complete with and including jointing materials and accessories suitable for 11KV XLPE insulated armoured aluminium cable of size 95 Sqmm 3 core, complete all as specified and as directed, Make : DENSON/ M-Seal/ Cab seal.

Janata Enterprises

M/S DAWN ELECTRICAL INDUSTRIES

GEETA CONSTRUCTION

KARMIBRINDA

R N SAH N CO

S K ENTERPRISES