真空断路器操作过电压的防护及在冶金工厂供电中的应用

Overvoltage in Operation Protection of a Vacuum Disconnetor and Its Application in Power Supply of a Metallurgic Plant

简单介绍了真空断路器的发展历史，分析了其结构特点、分类及其操动机构，并对其操作过电压的产生机理与防护措施作了阐述和总结，指出了真空断路器在冶金工厂供电中的应用现状与前景。

A brief introduction of developing history of vacuum disconnec- tors is given. Characteristics, types and operation mechanism of the vacuum discon- nectors are analyzed. Mechanism of overvoltage in operation of the vacuum discon- nectors and protective measures are presented and concluded. Current application and prospect of the vacuum disconnectors in power supply of metallurgic plants are analyzed.