Research on Selective Electric Leakage Protection Based on Active and Reactive Components of Zero Sequence Current
蒋军 JIANG Jun
（淮南职业技术学院，淮南 232001）
（Huainan Vocational and Technical College，Huainan 232001，China）
摘要： 对于煤矿井下电网中性点经消弧线圈接地系统，通过对线路中零序电流有功分量的分析来判定漏电线路；对于中性点不接地系统，通过对线路中零序电流无功分量的分析来判定漏电线路。将上述两种方法进行结合，得出一种不受井下电网接地方式与消弧线圈补偿方式的影响的选择性漏电保护理论。
Abstract: For the neutral point grounding system of coal mine underground power grid through arc suppression coil, the leakage line is determined by analyzing the active component of zero sequence current in the line; For the neutral ungrounded system, the leakage line is determined by analyzing the reactive component of zero sequence current in the line. Combining the above two methods, a selective leakage protection theory is obtained, which is not affected by the grounding mode of underground power grid and the compensation mode of arc suppression coil.
关键词： 零序电流；有功分量；无功分量；选择性漏电保护
Key words: zero sequence current；active component；reactive power component；selective electric leakage protection
中图分类号：TM452+.1 文献标识码：A 文章编号：1006-4311（2022）19-144-03
DOI:10.3969/j.issn.1006-4311.2022.19.045.
文章出处：蒋军. 基于零序电流有功、无功分量的选择性漏电保护研究[J]. 价值工程,2022,41(19):144-146.
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