一种新型配电网快速消弧及快速选线智能装置的研究

Research on a New Intelligent Device for Quick Arc Suppression in Distribution Networks

非接地消弧方式是近几年来昆明市供电局10 kV与35 kV供电系统使用的对地补偿容性电流方式。而相应的消弧选线装置主要通过暂态法方式进行选线。但是其相应的接地选线正确率却不高是一个非常严重的问题。尤其是在高阻接地故障方面,经常因为特征信号太弱而出现选线失误。在科学技术不断发展的今天,为了保证配电网运行的稳定性与安全性,必须要研究出一种新型的配电网快速消弧选线智能装置。

Non-earth arc suppression is the capacitive compensation current for ground used by Kunming Power Supply Bureau’s 10 kV and 35 kV power supply systems in recent years.The corresponding arc suppression line selection device mainly selects lines by the transient method.But its corresponding grounding line selection accuracy is not high is a very serious problem.Especially in the case of high-impedance ground faults,line selection errors often occur because the characteristic signal is too weak.In today’s continuous development of science and technology,in order to ensure the stability and safety of distribution network operation,a new type of intelligent device for rapid arc suppression and line selection in distribution networks must be developed.