真空开关的现状与发展

总结了真空开关灭弧室的结构设计 ,介绍了目前真空开关中常用触头材料的性能要求和CuCoTa等新触头材料的研究情况 针对真空开关易产生的过电压现象 ,探讨了限制过电压的装置及采用低过电压触头材料来限制过电压的方法 ;最后介绍了国外真空开关的新成就及其小型化、大容量、高电压、低过电压和智能化的发展趋势 ,指出我国真空开关发展较为落后 ,与世界先进水平相比存在较大差距 ,倡导大力发展真空开关技术 ,广泛使用真空开关

The Status Quo and Development of Vacuum Switchgear

The widely used structure design in vacuum switchgear interrupters is summarized. The performance requirements for the present contact materials and the new material CuCoTa are described. The method of adopting overvoltage limiting devices and low overvoltage contact materials is discussed in order to solve the problem of frequent occurrence of overvoltage. Finally the new achievements abroad and the future trend of vacuum switchgears are introduced. Application of vacuum circuit breakers in China is still limited at present. Therefore,we should develop vacuum technology greatly.