摘要
自2007年以来,全省220kV变电站出线均补装悬挂式避雷器,2010年全省发生多起热爆式避雷器用脱离器故障影响电网安全运行,通过对避雷器本体以及脱离器残片进行分析,发现避雷器本体性能正常,各项性能满足标准要求,脱离器由于密封不良导致机械强度下降,发生非正常脱离,总结了国内热爆式脱离器存在的问题,提出了相应对策及防范措施。
The suspended type of surge arresters had installed at 220kV substation from 2007, the electric power system was influenced by the series failure of the thermo-explosive Disconnector for surge arresters at 2010. The surge arresters and thermo-explosive disconnector were selected to test their characteristic of elemental performances, the test results show that performance of surge arresters meet to standard requirement, the mechanical strength decrease obviously due to sealing problem, and lead to disengaging abnormal. The paper was generalize the presence problem of thermo-explosive Disconnector, and the corresponding strategy was put forward.
出处
《电气技术》
2013年第3期75-77,共3页
Electrical Engineering
关键词
避雷器
热爆式
脱离器
surge arrester
thermo-explosive disconnector
作者简介
刘洋（1982-），男，江西景德镇人，博士、工程师，中国电工技术学会电工测试委员会委员，主要从事输电线路专业技术管理工作。
