介绍了一种煤矿井下对旋式风机专用隔爆型电磁启动器的设计方法。

This paper introduces the design method for a kind of the explosion-division intelligent electromagnetic starter specially used in the fans of the underground coal mining district.

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必须为各型安装功率为满负荷安培的过流保护加热丝的运动发生器，提供类似电磁启动器之类的保护。

Protection must be provided, such as a magnetic starter, for all types of motion generators with over-current protection heaters sized to the full load amps.

youdao

必须为各型安装功率为满负荷安培的过流保护加热丝的运动发生器，提供类似电磁启动器之类的保护。

Protection must be provided, such as a magnetic starter, for all types of motion generators with over-current protection heaters sized to the full load amps.

youdao