投切并联电容器过电压研究  

Study on Over-voltage Occurred in Switching Shunt Capacitor Banks

作　　者：韩彦华[1] 石少敏[2] 王森[1] 

机构地区：[1]陕西电力科学研究院,西安710054 [2]陕西教育学院,西安710061

出　　处：《电力电容器》2007年第1期5-8,共4页Power Capacitors

摘　　要：随着电力系统的发展,大量的并联电容器组在配电网被用来提高电能质量,补偿系统无功。这些并联电容器组通常要求频繁操作。针对真空断路器投切并联电容器组产生的过电压和过电流,采用了阻尼装置来进行限制。文章对阻尼装置的参数进行了选取,并利用电磁暂态仿真程序进行了研究和现场实测。With the rapid development of power system, More and more shunt capacitor banks are installed in distribution power grid. They may be switched on and off frequently by vacuum circuit breaker during a typical day. Damping circuit is used to limit the over-voltage and over-current. The selection of damping circuit parameter is introduced. Compare between field test and calculation by EMTP is also presented in this paper.

关 键 词：并联电容器组 真空断路器 阻尼装置 电磁暂态仿真程序(EMTP) 

分 类 号：TM53[电气工程—电器]