摘要
通过分析上海某区域的10 kV中性点经小电阻接地系统的故障特点,制定了一套适合10 kV中性点经小电阻接地系统电网的故障指示器整定原则,并根据该整定原则对某型号的故障指示器进行实时数字仿真(RTDS)测试,验证了整定原则的正确性和精确性,并对10 kV中性点经小电阻接地系统故障指示器的选型,提供了数据及建议。
Based on the faults parameters of low-resistance grounding system in some area of Shanghai, we set out a group of settings which suits for overhead line fault circuit indicator. And we tested some types of fault circuit indicators that applied this group of settings in RTDS system. The RTDS simulation results validated the correction and precision of settings. Also in this article we gave some conclusions which may help for the choice of fault circuit indicators of low-resistance grounding system in 10 kV distribution grid.
出处
《电力与能源》
2011年第5期364-366,共3页
Power & Energy
关键词
架空线路
故障指示器
小电阻接地系统
整定
overhead line
fault circuit indicator
low-resistance grounding system
settings
