ELECTROMAGNETIC-FIELD CALCULATION OF A LEAKAGE TRANSFORMER BY MEANS OF FINITE-ELEMENT METHOD WITH HERMITIAN ELEMENTS

This paper deals with the field and leakage reactance calculations in the model leakage transformer. The approximate solution for 3-D problem, made by composing 2-D solutions for 3-D solution, is applied. Hermitian hierarchical finite elements have been successfully applied to the field and reactance computation of the transformer. The computational results have been reported and compared with measurement giving the error not greater than 10%.