transformer connection

transformer connection

Postby Arakhith » Wed Oct 31, 2012 1:21 pm

In regard to second targate ee paper question no 22.
In star- delta transformer the seqence line current and voltage shifts by:
answer is -90 degree.
Could anyone tell me how?
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Re: transformer connection

Postby vivekruhela » Sun Nov 11, 2012 2:44 pm

I've also tried to calculate the phasor difference but problem is whether we have to calculate the phasor difference in primary side or in secondary side and between line parameters or in between phase parameters.....i m also searching for the answer, if i got first then i also tell you.
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