[Solved] Calculate the line voltage in star connection when phase voltage=311 V.

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Q.	Calculate the line voltage in star connection when phase voltage=311 V.
A.	548.29 v
B.	538.66 v
C.	587.28 v
D.	185.58 v
Answer» B. 538.66 v
Explanation: the line voltage in case of star connection is 1.73 times of phase voltage. it leads the phase voltage by an angle of 30°. vl-l

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