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 VThis question was posed to me during an interview for a job.This intriguing question originated from Solar Panels topic in section Solar and Battery Powered Drives of Electric Drives

Calculate the line voltage in star connection when phase voltage=311 V

1.	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 VThis question was posed to me during an interview for a job.This intriguing question originated from Solar Panels topic in section Solar and Battery Powered Drives of Electric Drives
Answer» Right answer is (b) 538.66 V For 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 = 1.73×311 = 538.66 V.

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