supply of 3 phase dry type transformer , air cooled dry type vpi/crt resin, three phase power transformer: rated power -2500kva, voltage rating-6.6kv/433v, current rating-hv side-218.69amp,lv side -3333.4amp, frequency-50hz, insulation-h with temp rise limited to f, cooling type –an, impedance-8.21%, vector group-dyn 11, temperature-maximum temperature rise in winding 90degree , amb temperature-50degree, suitable for indoor use.conform to is 11171,iec 60076-11,indian electricity act 2003,bee notification, cea guidelines with their latest amendments. note: existing transformer detail: make-intra vidyut ltd., transformer oga drg no. bg3215, insulation level hv sdie-7.2/20/60kv (p), lv side-3kv rms.