supply of double wound isolation & control rectifier transformer (2 items),2.5kva double wound isolation transformer air cooled type primary 415volts +_5%secondary 11 5volts with tappings +2.5% & -2.5%. copper wound crgo lamination class b insulation. transformer terminal s shall brought out on the top of the transformer & terminated with connector foot mounted type & terminals shall be clearly marked. conforming to:is:2026. warranty: 12 months from the date of commissioning or 18 months fr om the date of supply against any manufacturing defects. [ warranty period: 18 months after the date of deliver y ] , control rectifier transformer, 5.3kva 3ph. copper double wound, class ?f? insulated crgo lami nated , air cooled , primary input voltage : 440v , ac with tapping +/- 5% & +/- 10% secondary volatage : 100va c with tapping of +/- 5% & +/- 10% dimensional limitation l=300mm, w=240mm, h=240mm [ warranty period: 18 months after the date of delivery ] => limited