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Reason Analysis of a Hidden 35 kV Line Short Circuit Accident
Author(s): 
Pages: 39-42
Year: Issue:  5
Journal: Guangxi Electric Power

Keyword:  35kV线路相间接地短路线路避雷器安装位置中性点不直接接地系统;
Abstract: 分析一起造成线路元件严重损坏的35 kV线路故障原因并提出防范措施.通过运用多专业知识综合分析判断录波图与故障现象、设备损坏之间的有机联系,判断35 kV金百线发生的是相间接地短路故障而不是普通单相接地故障.针对事故过程暴露出的线路避雷器安装位置错误等问题,提出了35 kV及以下中性点不直接接地系统应选择其中一相线路不安装线路避雷器等防范措施.
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