APPROACH TO REDUCING THE CIRCULATING CURRENT LOSS OF A HELICAL WINDING

摘要

This paper presents the calculation of circulating current of a helical winding in transformer. A simple mathematical method is given to provide transposition data of a single-row helical winding. The circulating current losses of the winding are computed by a combined method of magnetic field and electric circuit. The comparative result shows that the loss can be reduced markedly through changing the turns in transposition areas.