“…The authors find the relative coefficient of velocity pulsations by the formula: The torque ripple rate is 18%, so the motor with the considered load has significant vibration. The problem of the vibration occurrence, ripples of speed and torque is considered in the paper [12], in which, by the example of the operation of an asynchronous electric drive on the load of a piston compressor, methods of speed and torque ripples attenuation are proposed.…”