220 kV双重化配置保护跳闸回路潜在缺陷分析  

Analysis of Potential Defects of 220 kV Dual Configuration Protection Trip Circuit

作　　者：陈炜 黄若霖 张丰 CHEN Wei;HUANG Ruolin;ZHANG Feng(Fuzhou Power Supply Company,State Grid Fujian Electric Power Co.,Ltd.,Fuzhou 350000,China)

机构地区：[1]国网福建省电力有限公司福州供电公司,福建福州350000

出　　处：《电工技术》2021年第16期68-71,共4页Electric Engineering

摘　　要：针对某220 kV GIS变电站双重化配置保护改造验收过程中,操作箱第I组跳闸动作灯不亮的现象,采用原理分析、试验验证等方法,深入研究了缺陷成因及两套保护动作时间差异对操作箱跳闸回路的影响和潜在风险,提出了双重化配置保护试验过程中的注意事项与应对措施,研究成果对220 kV及以上电压等级变电站的保护改造验收具有重要的指导意义。Aiming at the phenomenon that the tripping action light of the first group of the operation box is not on during the acceptance of a 220 kV GIS Substation double configuration protection transformation,the causes of defects and the influence and potential risk of two sets of protection action time difference on the trip circuit of operation box are deeply studied by means of principle analysis and test verification.The precautions and Countermeasures in the process of dual configuration protection test are put forward.The research results have important guiding significance for the protection transformation acceptance of 220 kV and above voltage level substation.

关 键 词：操作箱 双重化配置 缺陷分析 跳闸回路 

分 类 号：TM774[电气工程—电力系统及自动化]