变电站直流系统接地故障原因及对策
Cause and Countermeasure for Grounding Fault of Substation DC System
路欣怡 1倪一洋1
作者信息
- 1. 国网江苏省电力有限公司苏州供电分公司,江苏 苏州 215000
- 折叠
摘要
变电站直流系统一般由直流母线、充电装置和蓄电池等部分组成,作为变电站内保护、测控装置、断路器控制电源等的重要负载电源,直流系统对变电站的安全稳定运行起着十分重要的作用.直流系统接地故障是变电站常见的故障类型,对变电站一次设备的可靠运行有严重危害.文章首先对变电站直流系统接地故障的类型与原因进行分析,介绍了几种变电站直流系统接地故障的判断方法,并提出了变电站直流系统接地故障的对策,旨在为变电站直流系统的稳定运行提供可靠的支持与保障.
Abstract
The DC system of substation is generally com-posed of DC bus,charging device and battery.As an im-portant load power source for protection,measurement and control device,circuit breaker control power source in substations,DC system plays a very important role in the safe and stable operation of the substation.Grounding fault of DC system is a common fault type in substations,which has serious harm to the reliable operation of prima-ry equipment in substations.This paper first analyzes the types and causes of DC system grounding faults in substa-tions,introduces several methods for judging DC system grounding faults in substations,and puts forward coun-termeasures of DC system grounding faults in substations,aiming at providing reliable support and guarantee for the stable operation of substation DC system.
关键词
变电站直流系统/接地故障/电源互串接地/分支接地故障Key words
substation DC system/grounding fault/power interconnection grounding/branch grounding fault引用本文复制引用
出版年
2024
NETL
NSTL
万方数据