摘要
华东电网投运较早的500 kV变电站35 kV侧多采用干式电抗器,且电抗器间隔采用后置式接线方式。电抗器采用此接线方式节约了成本,但在电抗器间隔停电检修、施工工作时带来了一些困难。本文结合华东地区500 kV变电站一起35 kV电抗器动作案例,分析了采用后置断路器的电抗器本体更换工作的二次技术问题,进而提出相应的建议。
The dry type reactor is widely used in the 35 kV side of 500 kV substation in East China power grid.Breaker rear-wiring is often adopted in this bay of reactor.Breaker rear-wiring has the advantage of costs saving,but it brings some challenges when the main-tenance and construction of reactor bay with power outage.Based on a practical case of 35 kV reactor failure in 500 kV substa-tion in East China,the secondary issues caused by breaker rear-wiring pattern in the replacement of reactor are analyzed,in this pa-per.Moreover,the corresponding suggestions is provided.
作者
周小舟
陈昊
吕小华
丁毅
朱茂森
樊长鑫
ZHOU Xiao-zhou;CHEN Hao;LV Xiao-hua;DING Yi;ZHU Mao-sen;FAN Chang-xin(State Grid Jiangsu Electric Power Co.,Ltd.,Maintenance Branch,Nanjing 211102 China;State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing Powe supply Branch,Nanjing 210019 China;Guodian NanjingAutomation Co.,Ltd.,Nanjing 211153 China)
出处
《自动化技术与应用》
2022年第11期61-64,80,共5页
Techniques of Automation and Applications
关键词
电抗器
后置断路器
电抗器更换
继电保护
reactor
breaker rear-wiring
replacement of reactor
relay protection
