高电压技术2012，Vol.38Issue(11)：2956-2963,8.
模块化三断口真空断路器动态分压特性
Dynamic Voltage Distribution Characteristics of Modular Triple-break Vacuum Circuit Breaker
摘要
Abstract
In order to obtain the dynamic voltage distribution characteristics of U-shaped triple-break vacuum circuit breakers based on 40.5kV fiber-controlled vacuum interrupter modules(FCVIMs)and to give references for choosing suitable voltage-sharing measures,synthetic breaking tests with low voltage and small current were carried out and the transient recovery voltage(TRV)distribution characteristics were measured.The measuring method for TRV by connecting a large capacitor with the grading capacitor in series was also verified through tests.Moreover,the TRV distribution characteristics after large current interruptions were analyzed by PSCAD/EMTDC based on the continuous transition model.Some conclusions are drawn from the test and simulation results:after small current interruptions,the TRV distribution characteristics are close to those of the static state and the static voltage sharing design can satisfy the requirements of small current interruptions;after high current interruptions,the differences of residual charge parameters among breaks may have a significant impact on the voltage distribution;the increase of non-uniform level of the voltage distribution caused by the asynchronies among breaks should be considered for the dynamic voltage sharing design.关键词
三断口真空断路器/合成开断试验/瞬态恢复电压/均压电容/连续过渡模型/均压设计Key words
triple-break vacuum circuit breaker/synthetic breaking test/transient recovery voltage/grading capacitor/continuous transition model/voltage sharing design分类
信息技术与安全科学引用本文复制引用
吴高波,阮江军,黄道春,舒胜文,涂其华,普子恒..模块化三断口真空断路器动态分压特性[J].高电压技术,2012,38(11):2956-2963,8.基金项目
国家“十一五”科技支撑计划重大项目 （）
国家电网公司重大科技项目 （）
