煤矿井下低压电网选择性漏电保护研究  

Research on Selectivity Leakage Protection for Underground Low Voltage Distribution Network

作　　者：米启超[1] 赵红梅[1] 

机构地区：[1]平顶山工学院,河南平顶山467044

出　　处：《煤矿机械》2008年第1期154-155,共2页Coal Mine Machinery

摘　　要：针对井下低压电网漏电故障的电气特征,提出选择性漏电保护措施,以及基于零序电流和零序电压的功率方向型选漏保护的改进方法,为井下低压电网的综合保护提供了科学依据,提高了供电的可靠性。Address the electrical characteristics of underground low voltage network leakage fault, propose selective leakage protection measures, and improvement of power- election direction leakage protection based on the zero - sequence current and zero - voltage. Provides a scientific basis for the integrated protection underground low voltage network, and raise the reliability of power distribution.

关 键 词：选择性漏电 井下 低压电网 零序功率 

分 类 号：TM771[电气工程—电力系统及自动化]