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Answer Posted / sathesh
As we know that v=iz+e1,when dc supply is given the
tfr,there is no induced emf e1 in the tfr, so there is no
oppposition to the supply by the emf induced in the primary
winding, which makes v=iz+0, this makes v=iz => i=v/z,
if v=230v, let z=3ohm, then i=77Amps(app), which leads
more heat in the windings.. cause the burnin of the
transformer, when dc supply is given to tfr...
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