supply of power transformer 33 kv, 500 kva, isi marked, as per conforming is:1180 ( part-i ) : 2014 with latest, energy efficiency level 3 & bee star rating - 3, including installation testing work, input voltage - 33 kv & output voltage - 415 v, no load voltage ratios - 33 / .433 kv, core material - crgo as per is:3024 latest, winding material of transformer copper & foundation mounted type, vector group dyn-11 with solidly earthing system arrangement, noise level - 48 db, tank cover bolted type with radiator fins, cooling onan type, transformer body material used mild steel & bottom sheet thickness - 6 mm & side sheet of tank thickness - 4 mm, insulating oil to be used as per is:335 with supply of oil qty - 500 liter, on load tap charging arrangement with off circuit externally operated switch with mechanical interlocking device & position indicator, tapped positions 7 no with off position, temperature indicator & non return valve with drain cum sampling valve, with provision of cable end box on lv side, warranty of transformer 48 months of acceptance material in store material of rating plate - anodized aluminium with engraved marking of central govt. lab report for type test internal test report & routine test report short ckt with stand report with bis licence certificate & star rating certificate. make - tesla or similar [ warranty period: 30 months after the date of delivery ]