摘要
并联电容器是目前电力系统应用最广泛且经济性最高的无功补偿装置,但其发生重燃时,电容器及开关都会产生较高的对地过电压。通过对10 kV并联电容器重燃时三相电容器的最大对地电压以及非重燃相开关的最大恢复电压进行统计分析,得出了电压的变化规律及范围,可供制造厂参考,以尽可能减小并联电容器开关的重燃概率。
Shunt capacitor is the most widely-applied and economical reactive power compensator in present power system. While in case of restrike of in shunt capacitor, higher overvoltage to earth will emerge in the capacitor and switch. Through statistical analysis on maximum overvoltage to earth of three-phase capacitor as well as maximum recovery voltage of switch in non-restrike phase when restrike occurs in 10 kV shunt capaci-tor, this paper obtains voltage change rule and its range, providing reference for manufacturers to reduce re-strike probability of shunt capacitor switch as much as possible.
出处
《浙江电力》
2014年第10期15-17,35,共4页
Zhejiang Electric Power
关键词
并联电容器
重燃
过电压
统计分析
shunt capacitor
restrike
overvoltage
statistical analysis
