一起10 kV单相接地引发三相短路故障的辨识与分析
Identification and Analysis of a Three-phase Short-circuit Fault Caused by 10 kV Single-phase Grounding
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摘要: 针对一起10 kV中性点非有效接地系统中由单相接地引发两相异地接地短路，最终发展为三相短路的事故案例，通过故障录波及现场故障信息情况进行辨识分析，得出了故障原因，并提出了防范措施及建议。Abstract: In this paper, an accident case of two-phase off-ground short-circuit caused by single-phase grounding in a 10 kV low-current grounding system, which eventually developed into three-phase short-circuit, was identified and analyzed through fault records and on-site fault information, the cause of the fault was described, and preventive measures and suggestions were put forward.
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