Supply of outdoor type distribution transformer copper wound 11KV/416 Volts,3 phase50Hz,250KVA as per IS-1180-2014/BIS specification no. 2026(part-1) - whichever is latest with first filling of oil asper BIS 335,1993. Having off load tap changer of +/- 7.5% in steps of 2.5% the transformer manufactured sholdbe tested at your factory before dispatch (Routine test) as per ISS 2026/1180 and test certificate shall beproduced along with supply . vector grop Dyn11, impedance 4.50% level 2 losses at 50% ---980 watts, losses at100% --2930 watts level-2 Make :- MEI / AGROSONS or similar.
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