Effect of asymmetry of three-phase voltage system on the energy efficiency of electric drives
The effect of symmetry distortion of the three-phase power fre-quency industrial voltage system on the energy saving of asynchronous and synchronous electric drives is considered. It is proposed to consider the asymmetry of the three-phase voltage system as a result of the manifestation of one of the following reasons: the inequality of the modules of the phase voltage vectors; difference from 120 ° angular displacements of vectors of these stresses relative to each other. The different effects of the same degree of asymmetry of a three-phase voltage system on the energy efficiency of asynchronous and synchronous electric drives are shown