supply of supply of 100 kva, 11/0.433 kv, step down transformersupply of 100 kva, 11/0.433 kv, step down transformer,supply of 100 kva, 11/0.433 kv, step down transformer, confirming to is: 2026, three phase, 50 hz, oil-immersed, natural cooled (onan), core type, double wound with copper conductor having no tap s, 50/55 deg. centigrade temperature rise in oil and winding respectively, high voltage side connected in de lta whereas low voltage side connected in star with vector group referance dyn11 with neutral of the secon dary winding brought out for earthing, outdoor type, having porcelaen bushings on hv and lv side complet e with first filling of oil complying with is: 335 and fittings and accessories as per is:2026 as applicable. ma ke: - eastern transformer, kanohar, stanelec or similar make of same is specification. [ warranty period : 30 months after the date of delivery ] ]