Inductance Characteristics of a Transformer and its Equivalent Circuits under Steady State and Magnetizing Inrush Conditions

Abstract

In this paper, it is made clear a detailed characteristic of a T type and a π type equivalent circuit of the two winding transformer. And a way of thinking of the π type equivalent circuit that can be applied in multi-winding transformer more than two windings is derived. Furthermore, concrete problems of a T type equivalent circuit are shown, and the derivation method of a practical use equivalent circuit to analyze a magnetizing inrush phenomenon of two winding transformers is shown.