what is the problem in manufacturing transformer with 0 degree phase displacem

what is the problem in manufacturing transformer with 0
degree phase displacement.???why alwasys go for DYn11 or
DY5?Whys not DY0 i.e zero degree displacement between
primary and secondary side vectors?

Question Posted / cljth

3 Answers
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Bhel, dpdc, Prime Electrical, I also Faced
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what is the problem in manufacturing transformer with 0 degree phase displacement.???why alwasys g..

Answer / sujeet pandey

there can transformers with 0 degree or 180 degree phase
displacement like in the case of star-star or delta-delta .
In case of star-delta or delta-star transformer there is a
phase difference of +30 or -30 degree depending on
connection b/w them.This phase difference is due to the
relation b/w phase voltage of primary winding and phase
voltage of secondary winding.

Is This Answer Correct ?

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what is the problem in manufacturing transformer with 0 degree phase displacement.???why alwasys g..

Answer / surendra

dy5 basaically suitable with respect to winding displacement
as need of 120 degree in space for obtaning pure revolving
flux. another reason is in this is pressure on winding will
be symetric...

Is This Answer Correct ?

1 Yes

1 No

what is the problem in manufacturing transformer with 0 degree phase displacement.???why alwasys g..

Answer / srikant

i also faced it.....dont know

Is This Answer Correct ?

1 Yes

7 No

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