带电开口运行断路器雷击事故分析及防范措施  

Fault Analysis and Prevention Measure of Lightning for Electrified Open Operation Circuit Breaker

作　　者：施中郎[1] 

机构地区：[1]衢州电力局,浙江省衢州市324002

出　　处：《电力设备》2005年第6期63-65,共3页Electrical Equipment

摘　　要：从过电压的折射和反射原理出发,通过衢州电力局两变电所遭受雷击过电压后发生的断路器烧毁事故,分析出带电开口运行断路器遭受雷电过电压损坏的主要原因是:过电压在开路末端发生过电压全反射,造成过电压大幅度提高。文中还提出了相应的改进与保护措施。According to the switch burn out accident occurred after lightning over voltage in two substations in Quzhou Electric Power Bureau, the damage of electrified and open operation switch due to lightning over voltage was analyzed from the principles of reflection and refraction of over voltage. The major reason is that the total reflective over voltage occurred at the end of open circuit to cause over voltage substantially. The paper puts forward corresponding improvement and protective measures.

关 键 词：带电开口运行开关 雷电过电压 故障分析 

分 类 号：TM561[电气工程—电器] TM863