旋弧灭弧
rotating arc extinquishing
MHQ电子灭弧器
MHQ Electronic Extinguisher
串联真空灭弧室
vacuum interrupters (VI) in series
磁吹灭弧断路器
MBB
magnetic blow-out circuit breaker
磁性灭弧式避雷器
magnetic blow out arrestor
电子灭弧器
electronic arc-control device
动态自压缩灭弧室
dynamic self-compression interrupter
多功能真空灭弧室开关柜
Switchgear with multiple function vacuum interrupter
高电压真空灭弧室
high voltage vacuum interrupter
高压自能式灭弧室
HV self-energized arc-extinguishing chamber
密封式灭弧室
sealed arc extinguish chamber