And form the 2nd phase shift occurs in star-delta transformer. Star-delta transformer voltage shift and ± 300 current 1 corner, depending on the phase sequence. According to ANSI standards, no matter which side of the transformer, the phase angle in the early phase high voltage compared to 300 for the low voltage and slower phase upon the order of 300 to reverse the order. Because the order is not trapped in the transformer so its phase shift does not make sense.
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