摘要
绝缘子是输电线路的主要构件之一,它直接关系着电网的安全和稳定运行。针对云南电网某输电线路发生的玻璃绝缘子掉串事故,从理论分析和试验验证两方面研究了玻璃绝缘子掉串的原因:由于闪络电弧和工频续弧通过玻璃绝缘子钢帽内部产生的高热,使钢脚脱出,引发掉串事故。
Insulator is one of the main components of transmission line,it is directly related to the security and stability of the power grid operation. In view of the failure of the glass insulator string breakage happened in the transmission line of Yunnan power grid,the reason is studied from the two aspects of theoretical analysis and experimental verification. the high heat is caused by the flashover arc and the power frequency arc through the inside of the glass insulator metal cap,and make the steel foot taken off and lead to the failure of string breakage.
作者
申元
徐肖伟
SHEN Yuan XU Xiaowei(Yunnan Electric Power Co., Ltd Research Institute, Kunming 650217, China)
出处
《电瓷避雷器》
CAS
北大核心
2016年第5期165-168,共4页
Insulators and Surge Arresters
关键词
玻璃绝缘子
掉串事故
雷击闪络
引流通道
glass insulator
failure of string breakage
lightning strike flashover
current guiding channel
