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断路器为什么要设计防跳回路
更新时间: 2020-07-14 00:00:00  

断路器设计防跳回路是为了保护电路和断路器本身。

如果断路器在合闸时不停的跳跃,对负载就会行成不停的冲击,而且断路器本身触头就在不停的起弧与灭弧,对触头自身的影响较大。不停的吸合、跳开,启动电流是额定电流的4到7倍,会引起上级保护的跳闸。

关键词: 断路器 为什么 设计 回路

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