Answer / er. saumya sucharit senapati

If the transformer is old than with out testing it we can't
say the loss, becuase with time detoriation of metal
occours there fore core and copper losses increases. to
know the losses we have to arrange open circuit and short
circuit tests.

Er. Saumya Sucharit Senapati
094293-63645

Answer / pavankumar

copper losses are zero ideally but iron losses are constant

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