REAPIR/MAINT of TRANSFORMER AND CONNECTED WORKS AT DOMESTIC AREA AT AF STN GWALIOR

Amount

Disconnecting HT/LT Electric Supply and taking down existing transformer up to 500 KVA capacity of any description and in any position from the existing indoor/outdoor substation, shifting the transformer to new location not exceeding 5 KM away from the starting point and installation, fixing and commissioning the transformer connecting the incoming and outgoing connection including testing the transformer all as specified and directed by Engineer-in-Encharge.

Dismantling and Taking down the unserviceable breather assembly with silica gel complete for 63 KVA to 500 KVA transformer and supply and fix New breather assembly complete unit with silica gel including connecting with proper rubberized gasket to the transformer complete all as specified and directed by Engineer-in-Charge.

Disconnecting Electric supply of defective indoor/outdoor type transformer of 63KVA to 100KVA from HT/LT sides drain out transformer oil completely and keep storing the oil in suitable clean container (to be provided by the contractor) opening Top Cover and lifting assembly and core assembly carefully and checking the condition, refilling the transformer oil completely after necessary repair in-situ, and fixing the top cover complete all as specified and directed Engineer - in - Charge.

Description all as per item No 3 above but for transformer of capacity exceeding 160 KVA but not exceeding 200 KVA.

Description all as per item No 3 above but for transformer of capacity exceeding 250 KVA but not exceeding 315 KVA.

Description all as per item No 3 above but for transformer of capacity exceeding 400 KVA but not exceeding 500 KVA.

Dismantling and taking out the existing u/s circuit tap changer assembly and supply and fix off circuit tap changer assembly suitable for any make of 63 KVA to 500 KVA transformer with 7 tapping position including opening top cover breaker etc, complete all as specified and directed. Note: - Contractor is fully responsible for making good of any damage to transformer during tap changing operations.

Supply, filling and for topping up the transformer/OCB’s with new transformer oil as per specification duly filtered with filtration plant. Note:- (a) The transformer oil shall be type EHV confirming to IS 3357 of 1983 and shall be in company sealed container/Barrel. (b) Mineral oil grade 'B' shall be used. (c) The transformer oil should have a high dielectric strength shall be treated before topping up not less than 60KV Make: Indian oil corporation/BPCL/HPCL (d) The empty barral shal be deposite in MES store yard .

M&L for disconnecting 33 KV/11 KV HT/LV supply from power transformer 5 MVA cap and opening clamps, bus bar extension and disconnecting of HT 33/ 11 supply to transformer by opening clamps, bus bar extension and isolating the transformer from bus bar out door type, shifting the transformer to civil workshop. Drainning transformer oil complete and taking out cores and windings from body and put in oven for heating the coils for improvement of insulation resistance till proper insulation results achived, cleaning transformer body inside and out side complete, painting with two coats of super enamelled paint inside and out side the body complete after scratching and removing old paint layers, refixing cores and coils in transformer body. Refilling oil dehydration and filteration of oil to improve the dielectric strength /insulation value of transformer oil upto 60 KV and carryout test results such as megger test, Ratio Test, magnetic balance test, short circuit test, full load test, including replacement of wornout nuts bolts, all gaskets, packing sheets, sleeves, temp gauge etc complete reshifting the transformer at MRS install on plate form and connecting HT 33 KV /11 KV connection incl replacement of clamps nuts bolts & washer complete connecting and making control wiring system in serviceable condition and testing of transformer on full load. All as specified and directed by Engineer-in-Encharge.

Filtration/dehydration of transformer oil through filtration plant to improve the dielectric strength/insulation value of the transformer oil upto 60KV complete all as specified and as directed. Note:- (a) The contractor will take shut down orders in working before commencement of the work from Engineer-in-charge. (b) The contractor shall ensure to Avoid wastage of transformer oil (c) The contractor fully responsible for any damage to the transformer during filtration operations. He is responsible for making good any damage to the transformer at his own cost without any extra cost to the department (d) The contractor shall ensure that the conservator tanks are full to its level before starting the dehydration.

S&F in replacement of existing unserviceable temperature gauge old type with new temperature gauge of existing specification/Model complete all as specified and directed.

Supply and replacing of existing silica gel for the breather assembly complete all as specified and directed

Material and labour for preparation of old painted surfaces of floor mounted/pole mounted indoor/outdoor type transformer for the following capacity by cleaning/rubbing with course cloth wire brushes to remove dust deposits, oil, grease and painting with two coats of synthetic enamel paint complete including writing the SM No./MES No. on transformers with white paint and black rectangular back ground in the existing style/pattern complete all as specified and directed.

Transformer of capacity 63 KVA to 200 KVA.

Transformer of capacity 250 KVA to 500 KVA.

Material and labour for replacement of earthing complete with galvanized steel earth plate electrode 600mm x 600mm x 6mm buried directly in ground vertically to a depth not less than 2.25 metre below normal ground level (with top edge of earth plate not less than 1.5 metre below ground level) connected to galvanized iron earth strip 32x6 mm (main earthing lead) by means of galvanized bolts, nuts and washers all as shown in electrical plate No 3 of MES Schedule Part-I (2009) with connected to earth test point & to main switch board with & including adequate quantity of charcoal dust and common salt alround earth plate & 40 mm dia GI pipe medium grade for earth lead protection pipe for suitable length and GI pipe 20 mm dia medium grade for watering pipe with funnel & wire mesh including necessary earth work and PCC (1: 3 : 6) type C-1 for earth pit , internal surface of concrete shall be given 10mm thick plaster in CM 1:4 and 40 mm thick precast RCC cover in 1 : 2 : 4 type B1 with 3 Nos 8 mm dia TMT bars both ways with 12mm dia round bar handle complete all as specified & directed by Engineer-in-Charge.

Supply and fixing in repairs following spare parts required for repair of transformer/junction Box/Panel:-

Aluminium Lugs of 95 to 150 Sqmm size for LT/HT Cable.

Aluminium Lugs of 240 to 400 Sqmm size for LT/HT Cable.

Disconnecting of Electric supply from HT/LT side of Transformar and drain out transformer oil completely, storing the oil in suitable container/barrels properly cleaned ones (to be provided by the contractor) lifting the transformer from the sub station and shifting to civil workshop and opening the top cover. and Taking out core Assembly , removing the same and fixing including of high quality suitable rating sleeve insulating materials like varnish etc, complete after necessary arrangement necessary insulation spacing blocks, runners and proper refixing of core including proper drying/ovening has to be done in drying chamber after drying/Ovening, taking the core coil assembly, filling the filtered transformer oil, replacement of suitable size rubberized cork gasket, bolts and nuts etc complete by fixing top cover, conservator etc, through cleaning the transformer complete and testing complete at civil workshop. Shifting of transformer from civil workshop to sub station and Installation of transformer, testing and connecting the both HT & LT cables, commissioning of transformer after checking voltage and loading the transformer to the full load all as specified and directed. Note:- (i) HT & LT copper coil/ strips and insulation material PCB electrical grade such as barriers coil to coil insulation block and rings insulation cylinders, ebonite sleeves shall be measured and paid separately under relevant item schedules. (ii) Proper drying has to be done in drying chamber after drying, taking the core coil assembly, filling the filtered transformer oil, replacement of suitable size rubberized cork gasket, bolts and nuts etc complete by fixing top cover, conservator etc, through cleaning the transformer complete and testing complete at civil workshop. (iii) Transformer oil shall be measured and paid separately under relevant item of schedule. (iv) The cost of coil will be inclusive of varnish sleeving and insulating material.

Transformer of capacity 63 kVA to 200 kVA.

Transformer of capacity 250 kVA to 315 kVA.

Transformer of capacity 400 kVA to 500 kVA.

Supply only new LT copper strips/Coil made out of proper size of DPC copper strips super enameled of high quality matching with the existing impedances and insulation, coil will be inclusive of varnish sleeving for 63 to 500 kVA transformer all as specified and directed by Engineer -in-Charge.

Supply only new HT copper coil/Strips made out of proper size DPC copper wire super enameled of higher quality matching with the existing impedance and insulation, coil will be inclusive of varnish sleeving for 63 to 500 kVA transformer all as specified and directed by Engineer - in - Charge.

Supply only insulation material PCB electrical grade such as barriers coil to coil insulation block and rings insulation cylinders, ebonite sleeves complete all as specified and directed by Engineer-in-charge.

Supply and fixing with replacement HT(11 KV ) bushing assembly including brass stud nuts washers insulators etc. suitable for indoor/ outdoor transformer of capacity 63 to 500 KVA complete all as specified and directed by Engineer-in-Charge.

Supply and fixing in repairs 33KV HT bushing assembly including brass stud nuts washers insulators etc. suitable for indoor/outdoor transformer of capacity 5 MVA complete all as specified and directed by Engineer-in-Charge.

All as per item no 21 here in before but suitable 11 KV supply all as specified and directed by Engineer-in-Charge.

Supply and fixing with replacement 12mm dia LT bushing assembly including brass stud nuts, check nuts washers oil seal insulators etc complete all as specified and directed by Engineer-in-Charge.

Description all as item No.23 above but of size 16mm dia.

Description all as item No. 23 above but of size 20mm dia.

Description all as item No. 23 above but of size 30mm dia.

Dismantling and taking down existing unserviceable/worn out danger notice plate of 33 KV, supply & fixing for danger notice plate 25x30cm size and 1.6 mm thick mild steel vitreous enameled white, with letters, figures and conventional skull and bones in signal red colour and fixed with including connected accessories complete all as specified and directed.

Dismantling and taking down existing unserviceable/worn out danger notice plate of 11 kV, supply & fixing of danger notice plate 25x20cm size and 1.6 mm thick mild steel vitreous enameled white, with letters, figures and conventional skull and bones in signal red colour and fixed with and including connected accessories such as fixing clamp, nuts and bolts etc., complete all as specified and directed.

Disconnecting and Taking out old US PG Clamps and Supply and Fixing PG Clamp (11/33 KV)by Compression/crimping type sleeve joints for jointing conductors /jumper connections including treatment with conducting jelly all as specified and directed.

Disconnecting and taking out existing capacitor of any description and from any position all as specified and direcetd.

Supply, installation, testing and commissioning in repair of 25 kVAR capacitor for 3 phase 33 kV (33000 Volt) designed with specific features, such as a metalized polypropylene film dielectric for self-healing and compact size, internal fuses for element isolation, and oil-impregnated, hermetically sealed steel containers for protection and longevity complete all as specified and as directed by Engr-in-Charge..

Supply and fix cable jointing kit for 11 KV earthed grade cable for out door termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, Al conductor cable of size 95 Sq mm all as specified and direcetd.

Supply and fix cable jointing kit for 11 KV earthed grade cable for out door termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, Al conductor cable of size120 sqmm to 185 Sq mm all as specified and direcetd.

Dismantling and Taking down the unserviceable breather assembly with silica gel complete for 5 MVA transformer and supply and fix New breather assembly complete with breather unit and silica gel including connecting with proper rubberized gasket to the transformer complete all as specified and directed by Engineer-in-Charge.

BABA DEVELOPERS (BID ID -3498043)

M/s Sagar Construction (BID ID -3490368)