基于注入原理的小电流接地故障选线技术探讨

Discussion on Line Selection Technology for Small Current Grounding Fault Based on Injection Principle

电力系统的稳定关系到国计民生,在全球能源压力持续增大的背景下,如何提升电网的可靠性和经济性就成为了一个关键的课题。小电流接地是我国中低中低压配电网广泛采用的一种方式,因此需要及时排除故障,确保居民用电安全,保证电力系统的稳定运行。研究选择了基于注入原理的小电流接地故障选线技术进行探讨,采用了交流注入法和母线分列动作的方法,完成选线工作。

The stability of the power system is related to national economy and people’s livelihood.Under the background of increasing global energy pressure,how to improve the reliability and economics of the power grid has become a key issue.Small current grounding is a widely used method in China’s low,medium,and low voltage distribution networks.Therefore,it is necessary to eliminate faults in a timely manner to ensure the safety of residents’power consumption and ensure the stable operation of the power system.The research selects the small-current grounding fault line selection technology based on the injection principle for discussion,and uses the AC injection method and the bus splitting action method to complete the line selection work.