what is the ciruit diagram of transformer vector grup test?

Answer Posted / thiyagarajan

it will depends upon the transformer vector group for eg
your having ydo means the primary power is in phase with
the secondary if yd11 means secondary is leading primary by
an angle of 30degree yo can draw vector diagrams as per
their phase angle then making short to any of the same
phases in primary and secondary by deriving you can apply
voltage across primary and measrure voltages as you will
get some conditions based on vectors

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