摘要
简单叙述继电保护的原理,并对井下三大保护(过流保护、漏电保护、接地保护)及其它保护作了详细地论述,体现了供电系统和电气设备的保护对煤矿安全生产及其产量的提高具有重要意义。虽然继电保护的可靠性和灵敏度等都很高,但是它采用的触点控制方式,将会被软件控制方式所取代。最后,对煤矿供电系统和电气设备的保护方案作了展望。
Moreover, the principles of relay protection are concisely described. Meanwhile, three important protections（over- current protection, leak - power protection, earthing protection） as well as the other protections under the well are described in detail, which embody that these protections are significant to secure production and products of coal mine. Although relay protection owns high reliability and sensitivity, it adopts the ways of touch - dot control, which will be substituted by the methods of software control. In the end, the prospects of the schemes of power supply system and electrical device protections are presented.
出处
《煤矿机械》
北大核心
2006年第6期924-926,共3页
Coal Mine Machinery
关键词
继电保护
过流保护
漏电保护
接地保护
relay protection
over - current protection
leak - power protection
earthing protection
