MID/AN/28

1. Providing/fitting/installation/testing and commissioning of 250KVA transformer with other allied works at LIS Kathar. The job involves design, manufacture, providing and installation of 250 KVA, 3 phase 50 Hz outdoor type oil immersed, naturally air cooled, Copper wound Distribution Transformer of IS make with first filling of Oil (with latest amendments) continuous duty performance at ambient temperature from 2º C to 55º C. The Copper wound Transformer shall be in sheet steel case duly stove enameled painted. The job includes fabrication of electric substation by way of 11/0.433 KV, 250 KVA 3 Phase Distribution Transformer, erection of poles, lying of Aluminum conductor, earthing of Sub-Station, P&F of Aluminum and copper cables from transformer to LT distribution box. Technical Specifications: i) Transformer capacity = 250 KVA ii) Volts at no load, HV = 11000v, LV = 440v iii) Phases, HV = 3, LV = 3 iv) Type of cooling = Oil cooled v) Frequency = 50 HZ vi) % Impedance Voltage = 4.5% vii) Maximum Tempt. rise in oil = 45 degree centigrade. The job includes fabrication of electric substation by way of 11/0.433 KV, 400 KVA 3 Phase Distribution Transformer , Bi-metallic Terminal Connectors ,Energy Level-2 (Aluminum wound) ,Gapless Surge Arrestor- 9 KV , 10 KA, Lightening Arrester with (polymer/porcelaen) housing,11 KV GO switch , Air Break Switch 3-Phase, 3 Pole, 200 Amp, vertical type,11 kV Horn Gap Fuse Set 3 Phase 200 A,70 mm Sq /50 mm sq (2CKT/185 mm Sq (2ckt) Cable, 1.1 KV Grade, PVC Insulated Stranded Conductor FRLS(flame retardant low smoke) type.9 Mtr. Long Pole ( ST-410 SP33) ,11 KV Polymeric composite Disc Insulator 12 KV, min failing load -45 kN, Lighting Impulse- 75 kV Positive and 80 kV Negative, creepage distance- 320 mm., GI Channel/Angle/Flat of sizes including clamps ,Galvanized nuts and Bolts ,32/100 amps TPN Switch Disconnector Fuse Set ,Cement Bottoming 1:2:4 mix as per REC standards, 5 cum/pole., LT Distribution Box for 100KVA DTR with MCCB for incomer & Switch Fuse Units for Outgoing Circuits. Galvanized Stay set (Guy Rod Complete) 2 Nos ,Earthing of Sub-Station- Excavation of Earth pit of Dia 60 mm & depth 3000 mm, installation of earthing pipe of 40 mm Normal bore & 4 mm wall thickness & length 2.5 mtr long as per IS 1239, GI Strip for neutral earthing of size 75 mm x 100mm & 50 mm x 6 mm for connection of transformer body, GO set & lightening Arrestor as per IS 2629/85, GI nuts & Chamber made of Bricks Masonry with RCC Slab cover, Wedge Connectors/PG Clamps, Danger Plates with Clamps ,Sundry items like aluminum lugs, Jumpers, binding Tape etc., GI Barbed Wire for Anti Climbing ,Painting of Poles with Red Oxide,3 Phase, 4 wire Trivector Meter with CT, Prodigy meter. The job includes cost of fabrication of new fuse assembly, includes L shaped aluminum bars, insulator, thimbles, insulating tapes etc. Making of HT and LT electrical connections and then putting the transformer on no load till required meggar value is attained. Fencing around the electric sub-station of size 5ft x 5ft by way of fabrication of angle iron frames with 45 x 45 x 5 mm angle iron and providing, welding/fixing of pretail barbed wire and of iron poles is 5 ft. The complete job includes testing and commissioning on full load, 250KVA Transformer, carriage charges, hire charges of crane, charges for skilled / Semiskilled labour for installation of Electric Sub Station at the site.

BEE AAR ENTERPRISES (BID ID -2447642)

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS (BID ID -2448468)