基于零序电流有功、无功分量的选择性漏电保护研究  

Research on Selective Electric Leakage Protection Based on Active and Reactive Components of Zero Sequence Current

作　　者：蒋军 JIANG Jun(Huainan Vocational and Technical College,Huainan 232001,China)

机构地区：[1]淮南职业技术学院,淮南232001

出　　处：《价值工程》2022年第19期144-146,共3页Value Engineering

基　　金：2020年度安徽高校自然科学研究重点项目大型露天矿山空气柱装药爆破减振技术和理论研究(KJ2020A1160);省级重点科研项目《基于云模型的煤矿瓦斯自确认传感器的研究》(项目编号KJ20191044)。

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。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 

分 类 号：TM452.1[电气工程—电器]