what is the reason for choosing DYn11 in transformer, why not DYn12 or somethi

what is the reason for choosing DYn11 in transformer, why
not DYn12 or something else

Question Posted / maruthavinayagam

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what is the reason for choosing DYn11 in transformer, why not DYn12 or something else..

Answer / kuruvilla chacko

delta star config in dy11 mode has highest op volt rating than
any other configuration around 173.2% of original.also the
insulation is wider allowing it to have capacitive effects to
block transients.

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