what is the current rating of 2500 KVA,33KV/433v transformer
on secondary(LT) side
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Answer Posted / rafeek
p=3^1/3*vicos$
=3^1/3*415*i*0.8
p = 575i
p=250*0.8=200kw
200*1000=575i
i=347.82
i=347.82*1.2=417.39
i-~=400amps
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