RAPAIR AND MAINT TO TRANSFORMER AND ALLIED WORKS AT MILITARY STN SRI GANGANAGAR

Amount

Disconnecting 25 KVA to 100 KVA HT & LT side cables of following indoor/ outdoor transformer and earth strip from body and neutral of transformer mounted on two pole/four pole structure /staging and taking down the transformer manually/using mechanical means and lifting, loading and tranportation transformer from MES store yard/sub station/site to workshop for repairs and opening of covers, draining out existing transformer oil, lifting of core, cleaning of oil tank, using chemicals, cleaning of core after removing HT/LT windings, re-assembling of new HT/LT windings with core varnishing heating and bringing back the same after repairs to the same point complete all as specified and directed by Engr-in-Charge. Note : Rewinding of HT/LT coil any type/material, dehydration of transformer oil re-connecting after repair etc will be measured & paid separately under relevant items of this schedule.

Disconnecting 160 KVA to 315 KVA HT & LT side cables of following indoor/ outdoor transformer and earth strip from body and neutral of transformer mounted on two pole/four pole structure /staging and taking down the transformer manually/using mechanical means and lifting, loading and tranportation transformer from MES store yard/sub station/site to workshop for repairs and opening of covers, draining out existing transformer oil, lifting of core, cleaning of oil tank, using chemicals, cleaning of core after removing HT/LT windings, re-assembling of new HT/LT windings with core varnishing heating and bringing back the same after repairs to the same point complete all as specified and directed by Engr-in-Charge. Note : Rewinding of HT/LT coil any type/material, dehydration of transformer oil re-connecting after repair etc will be measured & paid separately under relevant items of this schedule.

Disconnecting 400 KVA to 630 KVA HT & LT side cables of following indoor/ outdoor transformer and earth strip from body and neutral of transformer mounted on two pole/four pole structure /staging and taking down the transformer manually/using mechanical means and lifting, loading and tranportation transformer from MES store yard/sub station/site to workshop for repairs and opening of covers, draining out existing transformer oil, lifting of core, cleaning of oil tank, using chemicals, cleaning of core after removing HT/LT windings, re-assembling of new HT/LT windings with core varnishing heating and bringing back the same after repairs to the same point complete all as specified and directed by Engr-in-Charge. Note : Rewinding of HT/LT coil any type/material, dehydration of transformer oil re-connecting after repair etc will be measured & paid separately under relevant items of this schedule.

M&L for replacement of insulation material such as gasket(cork sheet for top cover), LT terminal box, LV & HV bushing washer, paper insulation for coil for 25 KVA to 100 KVA transformer complete all as specified and directed by Engr-in-Charge.

M&L for replacement of insulation material such as gasket(cork sheet for top cover), LT terminal box, LV & HV bushing washer, paper insulation for coil for 160 KVA to 315 KVA transformer complete all as specified and directed by Engr-in-Charge.

M&L for replacement of insulation material such as gasket(cork sheet for top cover), LT terminal box, LV & HV bushing washer, paper insulation for coil for 400 KVA to 630 KVA transformer complete all as specified and directed by Engr-in-Charge.

M&L for reconnecting 25 KVA to 100 KVA transformer after complete repairs including installation & testing the transformer as per relevant IS provisions incl connecting and showing to executive and signature in Job sheeet by Engr in charge complete all as specified and directed by Engr-in-Charge.

M&L for reconnecting 160 KVA to 315 KVA transformer after complete repairs including installation & testing the transformer as per relevant IS provisions incl connecting and showing to executive and signature in Job sheeet by Engr in charge complete all as specified and directed by Engr-in-Charge.

M&L for reconnecting 400 KVA to 630 KVA transformer after complete repairs including installation & testing the transformer as per relevant IS provisions incl connecting and showing to executive and signature in Job sheeet by Engr in charge complete all as specified and directed by Engr-in-Charge.

Supply and filling of fresh transformer oil confirming to IS 335 having di electric strength not less than 30 KV in existing transformers installed at different locations complete all as specified and directed by Engr-in-Charge.Make : Sheetal N-68/Power oil/Castrol with test certificate.

M & L for HT/LT coils, 11 KV, 440Volts fabricated out of new aluminium wire/strip of suitable gauge with proper insulation, varnish etc suitable for indoor/outdoor type transformer complete all as specified and directed by Engineer-in-Charge.

M & L for HT/LT coils 11 KV/440V fabricated out of new copper wire/strip of suitable gauge with proper insulation, varnish etc suitable for indoor/outdoor type transformer complete all as specified and directed by Engineer-in-Charge.

S & F in replacement 25 KVA to 630 KVA (11KV) transformer bushing of HT side with porcelain, brass rod, bolts, washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S & F in replacement 3.15 MVA/1.6 MVA (33KV) transformer bushing of HT side with porcelain, brass rod, bolts, washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement 25 KVA to 100 KVA transformer bushing of LT side with porcelain, brass rod bolts washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement 160 KVA to 315 KVA transformer bushing of LT side with porcelain, brass rod bolts washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement 400 KVA to 630 KVA transformer bushing of LT side with porcelain, brass rod bolts washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement 3.15 MVA/1.6 MVA (33 KV) transformer bushing of LT side with porcelain, brass rod bolts washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

Dehydration and filtration of existing transformer oil with drain out all oil and cleaning of mud through high pressure flow oil pump using centrifugal plant to eliminate foreign particles and to improve di-electric strength not less than 40 KV in 25mm electrode gap and to bring the acidity within the permissible limit complete all as specified and directed by Engr-in-Charge.

M & L for preparation of existing painted external surface of transformer 25 KVA to 100 KVA capacities and applying two coats of synthetic enamel paint complete all as specified and directed by Engineer-in-Charge.

M & L for preparation of existing painted external surface of transformer 160 KVA to 315 KVA capacities and applying two coats of synthetic enamel paint complete all as specified and directed by Engineer-in-Charge.

M & L for preparation of existing painted external surface of transformer 400 KVA to 630 KVA capacities and applying two coats of synthetic enamel paint complete all as specified and directed by Engineer-in-Charge.

Taking out existing silica gel and providing new silica gel complete all as specified and directed by Engineer-in-Charge.

S&F in replacement of Air breather asembly with silica gel for transformer ranging from 25 KVA to 630KVA complete all as specified and directed by Engineer-in-Charge.

S & F for aluminium strip 25x3 mm thick fixed in ducts/on wall/in trenches/floor etc and jointing for interconnection of earthing fixed to equipment, test point incl drilling holes and jointing with aluminium nuts, bolts and washers complete all as specified and directed by Engr-in-Charge.

S&F in replacement of transformer temperature gauge heavy duty 0-150 degre centigrade of size 96mm dial type for 100 KVA to 400 KVA transformer having brass sensor complete all as specified and directed by Engr-in-Charge. Make - Scientific/H Guru/Tapan

M&L for earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick burried directly in ground vertically to a depth not less than 2.25 metre below ground level with top edge of earth plate at a depth not less than 1.5 metre below ground level, earth plate surrounded by 15cm thick packed layer of charcoal dust and common salt, connected to galvanized iron strip 32mm x 6mm thick as earth lead by means of bolts, nuts and washers of galvanised iron or steel and thimbles and other end of the earth strip connected to earthing test point/equipment and protected by galvanised iron pipe light grade 40mm dia upto earthing test point/equipment fixed with 2 Nos of mild steel clamp made out 25mm x 3mm flat iron and perforated water pipe 20mm dia GI medium grade and top with socket & plug and bottom connected to earth plate by slit and two bolts/nuts/washers, PCC chamber in cement concrete (1:2:4) type B-1 and CI cover with frame 40 x 40 x 6mm on top and excavation/ earth work complete all as shown in electrical plate No. 3 of MES Schedule Part-I of SSR-2009. Note:- (i) Outer edge of earth pit shall be 1 metre away from the outer edge of PCC chamber. (ii) GI strip upto earth test point/equipment is included in this item. (iii) Water pipe upto earth pit shall be provided in slantling position as included in this item.

M&L for earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6mm thick burried directly in ground vertically to a depth not less than 2.25 metre below ground level with top edge of earth plate at a depth of not less than 1.5 metre below ground level, earth plate surrounded by 15cm thick and packed layer of charcoal dust and common salt, connected to earth lead of GI wire 4 mm dia (8 SWG) by means of bolts, nuts and washers of the earth wire galvanised iron or steel and thimbles and other end of the earth wire connected to earthing test point and protected by galvanised iron pipe light grade 15mm dia and water pipe 20mm dia GI light grade with funnel & wiremesh, PCC chamber in cement concrete (1:2:4) type B1 including CI cover with frame 40x40x6mm angle iron frame on top of pit cover and excavation & earth work complete all as shown in electrical plate No. 3 of MES Schedule Part-I of SSR-2009. complete all as specified and directed by Engr-in-charge. Notes :- (i) GI wire upto earth test point/equipment is included in this item. (ii) Outer edge of earth pit chamber shall be 1 metre away from the outer edge of PCC chamber. (iii) Water pipe upto earth pit shall be provided in slanting position as included in this item.

Cutting/ trimming of tree branches not exc 10cm girth touching/approaching the LT/HT overhead lines conductors with hack saw/axe to clear the LT/HT line upto 3 metre on each side including disposal of trimmed branches 100 Metre away inside the station area & clearing site complete all as specified & directed by Engr-in-Charge. Note:-3Mtr width on each side (Horizontal/vertical) of LT/HT line shall be cleared.

S&F in replacement lightning arrester expulsion type conforming to IS-3070 Part-II 1989 as amended upto date suitable for 11 KV earth system having discharged current rating 5 KA high current impulse with stand 65 KA for OH 11 KV line including bracket clamps nuts, washers and connecting to earth as specified and directed by Engineer-in-Charge.

M&L for GI clamp, GI nut bolt, fabricated from structural steel sections including nuts, bolts, washers, welding , bending cold or hot, drilling holes for bolts, in any shape or size all as directed by Engr in charge.

Note : Amount of credit for retrieved materials is mentioned in Sch 'A' Section-II of tender documents in pdf form which will be deducted while acceptance of tender offline.

GURDEEP SINGH AND COMPANY