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500万彩票

真空开关管内部结构特点

发布日期: 2016-04-13

真空开关管内部结构特点

  真空开关管是真空断路器的关键部分,负责开断电路。加上操作机构就是真空断路器了。真空开关管内是两个倒扣的烟灰缸形状的触头,断开回路电流时,电弧从接触面中间沿着开好的导向间隙向外发散,被冷却而灭弧。

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