I know that vector groups basically determine the phase shift, and paralleling two transformers with different phase shifts is a genuine disaster.Some phase shifts can occur due to difference in the dot place, but for Wye-Delta connection the phase shift is 30 degree even with same dot on the primary and secondary. Why ?
This Site Might Help You. RE: What exactly causes the phase shift in transformers ? I know that vector groups basically determine the phase shift, and paralleling two transformers with different phase shifts is a genuine disaster. Some phase shifts can occur due to difference in the dot place, but for Wye-Delta connection the phase shift is 30 degree even with same dot on the