Figure 6. Torque-speed curves of 3-phase induction motor by varying line frequency

From

Different Methods of Speed Control of Three-Phase Asynchronous Motor

G. C. Diyoke, Okeke C., Uchechi Aniagwu

American Journal of Electrical and Electronic Engineering. 2016, 4(2), 62-68 doi:10.12691/ajeee-4-2-3