直流系统接地故障查找方法及其优缺点分析  

Detection Methods of Grounding Fault in DC System and Analysis of Their Advantages and Disadvantages

作　　者：陆伟明 LU Weiming(Zhanjiang Power Supply Bureau of Guangdong Power Grid Corporation,Zhanjiang 524000,China)

机构地区：[1]广东电网有限责任公司湛江供电局,广东湛江524000

出　　处：《电工技术》2020年第8期86-87,共2页Electric Engineering

摘　　要：在变电站和发电厂等供配电场所,除了高质量的交流电外,还需要稳定的直流电源。直流系统能否正常工作影响着整个供配电场所的运行。文章详细介绍了几种查找直流系统接地故障方法,并对每种方法都进行了优缺点分析。In the power supply and distribution sites such as substations and power plants,in addition to high-quality AC power,a stable DC power supply is required.Whether the DC system can work normally affects the operation of the entire power supply and distribution site.In this paper,several detection methods are introduced in detail for the grounding fault in the DC system,and the advantages and disadvantages of each method are analyzed.

关 键 词：直流系统 接地 故障检测 

分 类 号：TM910[电气工程—电力电子与电力传动]