摘要
通过对中性点不接地配电网结构的分析,提出了可以利用线路零序电流幅值的大小进行故障区段指示。通过对相电流采集模块、零序电流合成模块以及各自模块的电源供给部分的详细介绍,设计了一种基于零序电流的新型接地故障指示器,并利用ATP-MATLAB仿真软件进行了仿真分析。
For the neutral non-grounding distribution network,the size of zero-sequence current amplitude is used to indicate the fault section by the analysis of the real structure of distribution network.Through the detailed description of the collection of phase current module,synthesis of zero-sequence current modules and their respective power supply modules,a zero-sequence current fault indicator is devised.The analog circuit is simulated with ATP-MATLAB simulation software.
出处
《现代电力》
2009年第6期35-38,共4页
Modern Electric Power
关键词
配电网
小电流接地
单相接地故障
零序电流
故障指示器
distributed network system
small current neutral grounding system
single-phase earthing fault
zero sequence current
fault indicator
