Experimental study of the distribution of the magnetic flux in the stator support of the asynchronous motor.

Abstract

As a result of the research it was established that the distribution of the magnetic flux from the transverse axis of the radial section of the back is uneven, and the degree of nonuniformity of the flow distribution depends on the amount of backing saturation and the symmetry of the winding supply. In the unsaturated back, the unevenness of the flow distribution is determined by the circular shape of the back and the effect of eddy currents. As the saturation increases, the unevenness of the flow distribution decreases, and the effect of the back on the flow distribution almost disappears. The asymmetry of the stator winding power leads to the formation of sections in the back of the stator with a different degree of saturation of the steel and, consequently, with a different degree of uneven flow distribution. Ill 4, bibl. 2