转子实现了稀土永磁化，无滑差，转子无基波铁，铜损耗且发热量少，减少了定子电流和定子电阻的损耗。尤其在低速时，仍能保持很高的电机效率。

      This series motors are permanent magnet motors which adopt rare earth material. The  rotor of motor has rare earth permanent magnetization, no slip, no-fundamental wave iron,  copper lost and little heat, reduce stator current and stator resistance lost.The motor can always keep high efficiency, especially in low speed.