The rotor of a reluctance motor is made up of a reliable forged steel element with a convex toothed rack. Their beginning approach is comparable to an induction motor, but it operates like a synchronous motor. Normally, their rotors have much less poles than stators, which minimizes torque ripple and helps prevent excellent pole alignment, as no torque is made in that spot. Reluctance motors range in energy rankings from a couple of watts to about 22 kilowatts.