SPECIAL REPAIR/ REPLACEMENT OF BER E/M EQUIPMENT AT NAGROTA MIL STN UNDER GE NAGROTA

Amount

Supply, installation, Testing, Commissioning of Oil Cooled, Copper wound, Step down "BIS marked & BEE star labelled " transformer of capacity 500 KVA plinth mounted outdoor type with latest feature complete with standard fitted HT 11 KV 3 phase, LT 433 V, 3 phase 4 wire, 50 C/S oil immersed, naturally cooled externally cooling tube delta connection on primary HT 11 KV side and star connection on secondary LT 433V with tapping at +/-2.5 % to +/-5 % & +/- 7.5 % on HV side and to be changed by means of hand operated off load tap changing gear including first filling of new transformer oil of dilectric strength not less than 65 KV with all fitting and accessories such as LT box with cable gland, HT box with cable gland, Silica gel, breather, Oil level indicator gauge, drain out valve (oil tank), exhaust vent, air release valve, temp gauge, cast iron wheel etc comply with EEL 2 IS 1180 2014 with amendment 1, 2, 3 & 4 having total losses @ 50% load 1430W & total losses @ 100% load 4100W. Following items/ Accessories are deemed to be included in the quoted rate therefore No any extra cost will be paid for these items, complete all as specified and directed by Engineer-in-charge:- (i) Name, rating & diagram plate (ii) 7 positions Off circuit tap changing switch (iii) Earthing terminals (iv) Lifting lugs (v) Oil drain valve with plug (vi) Oil filter valve with plug (vii) Conservator with oil filling hole

(viii) Thermometer pocket (ix) Air release plug (x) Silica gel breather (xi) Removable inspection opening (xii) Explosion vent (xiii) Transformer platform as per manufacturer design with chain link fencing of size as approved by GE along all the sides of platform supported by providing angle iron of size 50 x 50 x 6mm at all corners including supplying and fixing danger notice plate on all the sides of chain link fencing and painting the fencing and angle iron with black synthetic enamelled paint.

Supply, installation, Testing, Commissioning of Oil Cooled, Copper wound, Step down "BIS marked & BEE star labelled " transformer of capacity 315 KVA plinth mounted outdoor type with latest feature complete with standard fitted HT 11 KV 3 phase, LT 433 V, 3 phase 4 wire, 50 C/S oil immersed, naturally cooled externally cooling tube delta connection on primary HT 11 KV side and star connection on secondary LT 433V with tapping at +/-2.5 % to +/-5 % & +/- 7.5 % on HV side and to be changed by means of hand operated off load tap changing gear including first filling of new transformer oil of dilectric strength not less than 65 KV with all fitting and accessories such as LT box with cable gland, HT box with cable gland, Silica gel, breather, Oil level indicator gauge, drain out valve (oil tank), exhaust vent, air release valve, temp gauge, cast iron wheel etc comply with EEL 2 IS 1180 2014 with amendment 1, 2, 3 & 4 having total losses @ 50% load 955W & total losses @ 100% load 2750W. Following items/ Accessories are deemed to be included in the quoted rate therefore No any extra cost will be paid for these items, complete all as specified and directed by Engineer-in-charge:- (i) Name, rating & diagram plate (ii) 7 positions Off circuit tap changing switch (iii) Earthing terminals (iv) Lifting lugs (v) Oil drain valve with plug (vi) Oil filter valve with plug (vii) Conservator with oil filling hole

(viii) Thermometer pocket (ix) Air release plug (x) Silica gel breather (xi) Removable inspection opening (xii) Explosion vent (xiii) Transformer platform as per manufacturer design with chain link fencing of size as approved by GE along all the sides of platform supported by providing angle iron of size 50 x 50 x 6mm at all corners including supplying and fixing danger notice plate on all the sides of chain link fencing and painting the fencing and angle iron with black synthetic enamelled paint.

M&L for earthing complete with galvanized mild steel earth plate electrode of size 60cm x 60cm x 6mm thick buried directly in ground preferably in vertical position (earth pit not less than 2.25 meters below ground level) with top edge of earth plate not less than 1.5 meters below ground level, connected to galvanized iron strip 25 x 4mm by means of nuts, bolts, check nuts and washers of GI or steel including PCC (1:2:4) type B-1, precast RCC cover slab of size 550 x 550 x 75mm, XPM reinforced not less than 1.60 Kg/Sqm with suitable built in handle made from 12mm dia MS round bar, excavation and earth work in any type of soil, 20mm dia bore medium grade galvanised iron water tubing fixed with cast iron funnel and wire mesh at one end, 15mm bore light grade galvanised iron protection pipe for earth strip protection upto 5m length, charcoal, common salt complete all as shown in electrical plate No 3 of MES SSR 2009 Part-I, connected to equipment and testing on completion for desired result complete all as specified and directed by Engr-in-charge.

R K BUILDERS (BID ID -3138974)

M/S JIWAN SINGH (BID ID -3138785)