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Which transformer is suitable for 220/11 kV, 60 MVA,
distribution , Y-Y or D-Y or Y-D, give comparison for the
same.
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Answer Posted / a v prasad
not only the above reasons guys....
.
but also the following.
.
Y-D Transformer is preferred as most economical rather than
the both . reason: D side always preferred low voltages as
it has Vph = V line to line. it want more turns ans more
insulation to get that line to line voltage ..
similarly Y side high voltage can be used as phase voltage
is much less than line voltage, takes less turns and less
insulation to get required line voltage
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