6181F-15TPW7DC

6181F-15TPW7DC

6181F-15TPW7DC

三相异步电机的接线方法包括星形连接和三角连接两种。

1. 星形连接

星形连接是将每个电机绕组的一个端子连接在一起，形成三相交点，而另一个端子分别接地或连接至电源的相线上。这种连接方法使得电机的电压降低1/√3，电流升高√3倍，功率和转矩保持不变。

2. 三角连接

三角连接是将每个电机绕组的两个端子分别彼此相连，形成一个闭合的三角形。此时每相电压等于线电压，电流和功率都不变。但此时电机的起动电流变大，不利于起动。

一般来说，电机额定功率小的情况下都使用星形连接，而大的情况下则多采用三角连接。这样可以减少电机在起动时的起动电流，保护电源系统和电机本身的。

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