The paper presents a method to design wide-ratio pole-changing motor by using single-layer winding and phase changing.
本文介绍了用单层绕组和换相法设计远极比变极电机的方法。
Through cooperating each other between the generator stator ground protection, it can operate sensitively when single phase ground fault in whole range of generator stator winding occurs.
通过发电机定子接地保护之间的相互配合，在整个发电机定子绕组范围内发生单相接地故障时，发电机定子接地保护均能灵敏地动作。
It selects material cost as target function, core length and winding turns as variables to develop program for optimization design of single phase motors.
论文以材料费用为目标函数，铁心长度及绕组匝数为变量编制了计算程序，对单相电机进行了优化设计并给出了计算结。
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