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How can you test the vector group of power transformers?
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Answer Posted / ashwani malhotra
(2u-2n)+(2n-1W) = (1U-1W)
( 2v-1W ) = (2w-1W)
( 1V-2v ) < (1V-2w)
( 1U-2v ) = (1U - 2w)
In DYn11 connect 1U & 2u .and apply the 3 phase 415 v ac to
HV side. Check for the above condition .if its ok then
group is DYN11.
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