A study on the effect of the stator tooth width on the characteristics of three-phase squirrel-cage induction motor with six stator slots

In recent years, the motive power of industrial machines has increased, and induction motors are now being used many applications. Consequently, there is increasing demand to reduce the cost of these motors. One method that can be used to lower the cost is to change the stator winding structures to use concentrated windings. However, induction motors with concentrated windings have not been studied in detail. Therefore, we have tried to develop low-cost high-efficiency induction motors with concentrated windings. In this paper, the results of the effect in changing the stator tooth width and the rotor opening width in induction motors with the number of slots per pole per phase q =1 and with concentrated windings is clearly shown by FEM analysis.