A three-phase transformer, connected in star-delta, is composed of thr – McqOptions

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1.	A three-phase transformer, connected in star-delta, is composed of three single-phase transformers, each rated 127 V / 13.2 kV. The line-to-line voltage ratio for the three-phase transformer is:
A.	220 / 13.2 kV
B.	127 / 13.2 kV
C.	127 / 220 kV
D.	220 / 220 kV
Answer» B. 127 / 13.2 kV

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