What core magnetic balance test of transformer?
How to do this test in a three phase Star delta (star-LV,
Delta-HV) transformer?
How to measure and where to measure?

thanks and regards
Austin

Answer Posted / engr. l.o. osuji

Hi,
You may use either single-pase on the star side of the
transformer as in Answer #2 or apply two line voltages i.e.
apply 415V on A and B terminals on the HV-side of the
transformer and follow the steps of Rajukumar Sripelli in
Answer #5.

Is This Answer Correct ?    6 Yes 4 No



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