RESEARCH ON THE IMPACT OF THE QUALITY OF ELECTRICITY ON THE EFFICIENCY OF ASYNCHRONOUS ELECTRICAL OPERATION
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Abstract
The effect of electricity quality on the efficiency of an asynchronous electric motor will depend on several sizes. The symmetry coefficient of electrical energy received from the network, the nosinusoidal voltage, nonormal vibration (frequency) and network harmonics negatively affect the operation of the asynchronous electric motor. Asynchronous electric motor during nonormal operation, first of all, its service life is reduced. The torque of asynchronous electric motors varies depending on the voltage and the speed of rotation on the vibration (frequency). These changes are a nonormal condition for electric motors. In electric motors, nonormal states can lead to a violation of the magnetic flux in it and an increase in the rust temperature to melt the dielectric varnishes, and the phases lead to a short circuit. Changing the speed of asynchronous electric motors also causes its torque and load current to change.
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