【摘要】 介绍了国内外发展保护电压互感器用熔断器的情况和IEC对保护电压互感器用熔断器的要求(即我国GB1207—1997的要求)。我国正在创新自主研制一种由特殊结构真空熔断器和小型化结构限流熔断器串联组成的真空混合式限流熔断器,文中介绍了它保护高压电压互感器的工作原理和特点,当故障电流值在其时间电流特性交叉点以上时由真空熔断器开断,当故障电流值在交叉点以下时则由限流熔断器开断。更多还原

【Abstract】 The paper introduced the domestic and international development condition of fuse used for protecting voltage transformer, and the requirements for the fuse from IEC (the requirements in GB 1207—1997). A kind of vacuum hybrid current limiting fuse formed by series connection of special structure vacuum fuse and the miniaturization structure fuse in China is developed. This paper introduced its working principles and characteristics. When the value of fault current is below the intersection of time-current property, the current limiting fuse is blown out.更多还原