配电网接地电容电流测量方法的分析和选择  

Analysis and Selection on Measuring Methods of Grounded Capacitive Current for Distribution Network

作　　者：段素平[1] 

机构地区：[1]内蒙古包钢钢联股份有限公司供电厂,内蒙古包头014010

出　　处：《包钢科技》2015年第2期56-58,共3页Science & Technology of Baotou Steel

摘　　要：配电网中性点采用经消弧线圈接地方式是否能保证电网安全运行,关键是接地电容电流值的计算是否正确。文章简要介绍了小电流接地系统配电网中的单相接地电容电流的测试方法,与工程计算法比较,得出异频信号注入法可以准确测量接地电容电流。The key point to determine safe operation of power grid for neutral points of distribution network with ground connection through arc suppression coil is whether the calculation of grounded capacitive current value is correct. In the paper,it is briefly introduced the measuring method of single- phase grounded capacitive current for distribution network of ground system for low current and compared it with engineering calculation method. As a result,the injection method with signals of pilot frequency is considered to be able to accurately measure grounded capacitive current.

关 键 词：消弧线圈 电容电流 电网安全 

分 类 号：TM835[电气工程—高电压与绝缘技术]