Details: supply ,installation, testing and commissioning of copper wounded transformer step up/ step down, outdoor type capacity 250 kva , 22 kv,3 phase , iss: 1180(2014) part-i & latest , e.e. level -ii , amendment no 4 , 50 c/s oil immersed , natuarally cooled ,out door type step down transformer having a no load voltage ratio 22000/433v , vector group dyn 11 with plus minus 2.5 plus minus 5% off circuit tapping as under taken out on the ht side and connected to 22 kv off circuit tapping switch , ht winding connected in delta & lt winding connected in star and the neutral brought out & connected to a separate terminal for earthing with outdoor open porcelain bushing on hv side & cable box on lv side with the temperature rise not excceding 40 degree centrigrade by thermometer in oil and 45 degree centrigrade by resistance & ambient temp 40 degree centrigrade with first filling of oil with following (i) fitting and accessories:- (a) first fill of transformer oil (b) 22 kv off circuit tapping s
Sector: Defense