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last week we did the REF relay test by closing single pole
(R phase) of CB and apply 380V at the primary of delta
transformer. we get 33A at the primary of the R phase star
end. but we get 380A at both R an B in delta side. how and why?



last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the pr..

Answer / k.prakashchandra

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