why the transformer primary and secondary windins vector groups vary? why it is

why the transformer primary and secondary windins vector
groups vary? why it is something like Dy11 and not as Dy or
Yy...

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why the transformer primary and secondary windins vector groups vary? why it is something like Dy11..

Answer / narsing

I think due to variation of magnetic flux

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why the transformer primary and secondary windins vector groups vary? why it is something like Dy11..

Answer / narsing

I think due to variation of magnetic flux

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