Hey guys,
I have a question about line-to-line voltages in an ungrounded Y system with a single phase to ground fault, from PPI Exam 1 question 18.
The solution basically states that the line voltages will be sqrt(3) times higher than the phase voltages during a phase-to-ground fault. This normally makes sense to me for a grounded Y system, but...
The problem states that this is an ungrounded system. From my understanding, an ungrounded system's line-to-line voltages do not change when there is only a single phase to ground fault. So the phase voltages in the unfaulted phases should not change either, correct? Or is there something that I'm missing?
I have a question about line-to-line voltages in an ungrounded Y system with a single phase to ground fault, from PPI Exam 1 question 18.
The solution basically states that the line voltages will be sqrt(3) times higher than the phase voltages during a phase-to-ground fault. This normally makes sense to me for a grounded Y system, but...
The problem states that this is an ungrounded system. From my understanding, an ungrounded system's line-to-line voltages do not change when there is only a single phase to ground fault. So the phase voltages in the unfaulted phases should not change either, correct? Or is there something that I'm missing?
