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DC ground fault location search method, ground fault current supply device, and DC ground fault monitoring system
DC ground fault location search method, ground fault current supply device, and DC ground fault monitoring system
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机译:直流接地故障位置搜索方法,接地电流供应装置和直流接地故障监视系统
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摘要
PROBLEM TO BE SOLVED: To contribute to accurate and easy specification of a position where grounding occurs.SOLUTION: In the case where instantaneous grounding occurs, a ground detection device 5a (5b, 5c, ...) measures presence/absence of a grounding current supplied from a grounding current supply device 3. Namely, in the corresponding ground detection device 5a (5b, 5c, ...), a grounding current is measured, thereby specifying an instantaneous grounding position. In the case where grounding continues, an intermittent grounding current is supplied from the grounding current supply device 3, and a grounding position is specified using the ground detection device 5a (5b, 5c, ...). Namely, since a grounding current flows from a grounding point toward a power source on a line where grounding occurs, the ground detection device 5a (5b, 5c, ...) at a position where grounding occurs is operated.
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