摘要
运用高电压技术理论,分析了雷电波入侵变电站使站内绝缘薄弱的电流互感器瓷绝缘外套闪络的原因;论证了对变电站内设备开展定期探伤工作的必要性;对如何使变电站内设备不受雷电波入侵损坏提出了具体可行的防范措施;同时也论证了具有正常防雷设计的变电站并不需要另外加装过压保护器;对变电站的安全运行具有非常现实的指导意义。
By using the high voltage technology theory, the reason of flashover was analyzed for the outer cover of the porcelain insulator of TA which has poor insulation when the substation is struck by lightning waves. It is necessary for power substation to carry out periodical equipment detection. Some concrete and feasible preventing measures were presented for avoiding equipment being destroyed by lightning wave strike. Meanwhile the conclusion shows that the substations with lightning-proof design do not need to install extra over-vohage protector. It is significant for guiding the safety operation of the power substation.
出处
《中国电力》
CSCD
北大核心
2007年第5期63-66,共4页
Electric Power
关键词
雷击
电流互感器
烧毁
事故分析
lightning strike
TA
burn out
accident analysis
