煤矿井下高压选择性漏电保护原理的研究  

Study on the Principle of High Voltage Selective Leakage Protection in Coal Mine

作　　者：唐会祥 

机构地区：[1]中国煤炭科工集团武汉设计研究院有限公司,湖北武汉430064

出　　处：《煤矿机电》2016年第3期29-32,共4页Colliery Mechanical & Electrical Technology

摘　　要：通过分析各种漏电故障的电气特征,结合现有各种选择性漏电保护原理的优缺点,提出了能自适应不同接地方式的软件相位鉴别法,即发生漏电时,通过检测零序电流与零序电压大小的相位,设置其启动值来判断是否发生了漏电故障。通过试验测试,表明该方法保护动作可靠,性能优越。By analyzing the electrical characteristics of various leakage faults and combining the advantages and disadvantages of the existing selective leakage protection principle,the software phase identification method is proposed,which is based on the phase of detecting zero sequence current and zero sequence voltage. The test results show that the method is reliable and the performance is superior.

关 键 词：漏电故障 选择性漏电保护 软件相位鉴别法 

分 类 号：TD611.5[矿业工程—矿山机电]