EQUIVALENT-CIRCUIT FOR SMALL SOLID-ROTOR INDUCTION-MOTORS FED FROM A NONSINUSOIDAL SUPPLY

In this paper an equivalent circuit for small solid-rotor induction mo tors is developed in which the effect of the time harmonics of the sup ply are taken into consideration when the supply is non-sinusoidal. Th is circuit can be used to obtain directly the characteristics of the m otor, such as torque speed, current speed etc., when the motor is fed from a non-sinusoidal supply, in the same way as the characteristics o f the cage motor are obtained.