摘要
为有效控制操作过电压的产生,以投切35 k V电容器为例,在EMTP/ATP软件平台上分析研究了真空断路器的结构和原理,搭建了相应的仿真模型,分析了引起断路器发生重燃及过电压的原因和相关因素。通过模型仿真可知,真空断路器的介质恢复强度和电源的初始相位角对断路器发生重燃的次数及过电压倍数有着重大的影响。此外,在仿真模型中合理地装配避雷器对电路能起到较好的保护作用。
To effectively control switching surge, taking the example of catting a 35 kV capacitor, this paper, based on the EMTP/ATP software platform, analyzed the structure and principle of the vacuum circuit breaker and established the correspond simulation model, analyzed the reasons and related factors that cause circuit breaker renewed and overvoltage. The simulation shows that vacuum circuit breaker＇ s dielectric recovery strength of slope and the initial phase angle of power have a significant impact on the number of renewed and overvoltage multiple of circuit breaker. In addition, it has an effective protection on circuit that reasonable adding lightning arrester in the capacitor side.
出处
《电器与能效管理技术》
2016年第12期16-20,共5页
Electrical & Energy Management Technology
