与线绕转子电机相比，笼型电机更常用于制造和维护。笼式转子电机的一个显着优势是可以自由选择不同的转子槽形状。
但是，这些电机有一个启动问题需要解决，以提高其应用水平。
As we've mentioned before, improving the starting performance of asynchronous motors can be achieved by adjusting the motor rotor resistance.
调整笼型转子电机的转子电阻是电机技术进步的体现。通过改变转子导体槽形，实现转子电阻在启动和运行过程中的动态变化特性。
一种类型的槽形状是深转子槽。
This elongated shape reduces the rotor resistance during starting, thus decreasing the motor's starting current. After starting, the rotor resistance returns to the DC resistance size. This slot shape is an effective measure to improve the starting performance of asynchronous motors.
另一种槽形是双笼转子槽。
本设计采用两层细缝导体，上笼采用电阻系数较大的导体材料，下笼采用电阻系数较小的导体材料。
The upper cage is mainly used for motor starting, while the lower cage's main role is to run.
The skin effect and the larger resistance of the upper cage material improve the starting index, while the lower cage's smaller resistance value meets the motor's operating performance.
总之，笼式转子电机的优点是可以为转子选择不同的槽形，从而允许在启动和运行期间转子电阻发生动态变化。
深转子槽和双笼式转子槽是槽形的两个例子，可以有效提高异步电动机的启动性能。
