| http://www.w3.org/ns/prov#value | - The torque ripple and harmonics in the rotating electrical machine often reduce machine efficiency, increase mechanical vibrations, increase noise, and when transferred to the shaft, interfere with the load or the prime mover, such as a turbine or an engine. [0006] The following factors typically contribute to the reduction of the system efficiency: [0007] Mechanical/magnetic design of the electri
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