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What are Electric Motor Shaft Circulating Currents?

07/19/2016

Shaft circulating currents are caused from "dissymmetries" in the magnetic paths through the stator and rotor iron. As the rotor rotates within the stator and as the stators magnetic field rotates, small differences in the magnetic "reluctance" of the core parts generate small voltages be­tween the ends of the shaft.

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