A /Y transformer has a phase-to-phase voltage transformation ratio of (delta phase): 1 (star phase). The line-to-line voltage ratio Y/ is given by

A /Y transformer has a phase-to-phase voltage transformation ratio of

1.	A /Y transformer has a phase-to-phase voltage transformation ratio of (delta phase): 1 (star phase). The line-to-line voltage ratio Y/ is given by
A.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> <span style=" text-decoration: overline;">3</span></center></td></tr><tr><td style="text-align: center;">a</td></tr></table>
B.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>a <span style=" text-decoration: overline;">3</span></center></td></tr><tr><td style="text-align: center;">1</td></tr></table>
C.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> <span style=" text-decoration: overline;">3</span></center></td></tr><tr><td style="text-align: center;">a</td></tr></table>
D.	a
Answer» D. a

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A /Y transformer has a phase-to-phase voltage transformation ratio of (delta phase): 1 (star phase). The line-to-line voltage ratio Y/ is given by

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