A Polarization Current Approach to the Calculation of Inductances and the Solution of Field Problems Involving Magnetic Materials

This paper introduces a polarization surface current approach to the computation of the equivalent circuit self and mutual inductances required to predict the surge response of transformer windings. The effect of the magnetic core is accounted for by means of polarization currents circulating on the core surface. The application of the proposed method can be easily extended to solve axially-symmetric magnetic field problems. The method´s algorithm is suitable for digital computer programming. Accurate results are very efficiently obtained.