Amorphous Stator Core for High Efficiency Motors

Amorphous alloys have extremely low coercivity and high permeability. In fabricating motor stators, we use amorphous alloys to replace silicon steels, reducing core losses and significantly increasing the efficiency of the motors. Coupled with a copper rotor, the efficiency of a 1.1 kW high-speed asynchronous motor with an amorphous alloy stator can be as high as 90.42% while the output torque and the operational speed are 1.5N.m and 7000 rpm, respectively.