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For ungrounded and resonant grounded systems, it is very difficult to identify the line experiencing a single-phase to ground fault. This is due to the fact that such grounding schemes produce very small fault current. This paper presents a novel method that can overcome the difficulties. The idea is to convert the ungrounded system into a grounded system temporarily through a controlled short circuit...
For neutrally ungrounded systems, it is very difficult to identify the line experiencing single-phase to ground fault. This is due to the fact that the non-effectively grounded system produces a very small fault current. This paper presents a novel method that can help to overcome this difficulty. The idea is to convert the ungrounded system into a grounded system temporarily through a judicially...
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