摘要
在一次500kV开关切空载长线操作中,发生了对侧开关均压电容爆炸事故。根据现场故障录波图,利用计算机仿真技术,对该次爆炸事故进行了深入分析,得出了均压电容本身存在绝缘缺陷,在开关发生一次重击穿时发生爆炸的结论。
A grading capacitance explosion occurs during switching no-load in 500 kV long line. According to the field fault oscillograph, thorough analysis is made to the accident by computer simulation technology. The result is concluded that insulating defect exists in grading capacitance itself, which leads to an accident.
出处
《高压电器》
EI
CAS
CSCD
北大核心
2005年第3期231-233,共3页
High Voltage Apparatus
关键词
开关
重击穿
均压电容
过电压
circuit breaker
restrike
grading capacitance
overvoltage
