Electrical Technology-2019-5-9
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This post was last edited by sdscj0122 on 2019-5-9 19:28. In a l0kV power system, when there is a single-phase ground fault, the voltage of the ungrounded phase relative to ground becomes a times the original phase voltage, where a is equal to square root of 3. file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif b. 1 c. 2a
My answer is: 3 times, b/c that’s not correct; therefore only a could be 3 times