bk控制变压器能变压220怎么接

bk控制变压器能变压220怎么接
2025-03-15 16:51:12
推荐回答(1个)
回答1:

如下图所示为按钮、接触器控制补偿器的三相电动机降压启动的控制线路图。线路的工作原理如下:
机M接入TM降压启动。
3)全压运行:当电动机转速上升到一定值时,按下SB2→SB2动合触头后闭合、SB2动断触头先分断→KM1线圈通电→KM1自锁触头分断接触自锁、KM1互锁触头闭合、KM1主触头分断,TM切除

→KM2线圈通电→KM2自锁触头自锁、KM2主触头闭合、KM2互锁触头分断对KM1互锁、KM2动断触头分

断,解除TM的星形连接→电动机M全压运行。停止是,按下SB3即可。

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