浙江电力
浙江電力
절강전력
ZHEJIANG ELECTRIC POWER
2014年
10期
15-17,35
,共4页
倪涛%金涌涛%蔡重凯%刘军
倪濤%金湧濤%蔡重凱%劉軍
예도%금용도%채중개%류군
并联电容器%重燃%过电压%统计分析
併聯電容器%重燃%過電壓%統計分析
병련전용기%중연%과전압%통계분석
shunt capacitor%restrike%overvoltage%statistical analysis
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。
併聯電容器是目前電力繫統應用最廣汎且經濟性最高的無功補償裝置，但其髮生重燃時，電容器及開關都會產生較高的對地過電壓。通過對10 kV 併聯電容器重燃時三相電容器的最大對地電壓以及非重燃相開關的最大恢複電壓進行統計分析，得齣瞭電壓的變化規律及範圍，可供製造廠參攷，以儘可能減小併聯電容器開關的重燃概率。
병련전용기시목전전력계통응용최엄범차경제성최고적무공보상장치，단기발생중연시，전용기급개관도회산생교고적대지과전압。통과대10 kV 병련전용기중연시삼상전용기적최대대지전압이급비중연상개관적최대회복전압진행통계분석，득출료전압적변화규률급범위，가공제조엄삼고，이진가능감소병련전용기개관적중연개솔。
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.
