Three Phase Power Transformer Modeling Using FEM for Accurate Prediction of Core and Winding Loss.

Abstract

This paper presents the modeling and analysis of core loss and winding loss in a power transformer. 2-D FEM and 3-D FEM are used for the accurate calculation of flux density distribution and total core and winding loss of a three phase 15 MVA, 66/11 KV power transformer. Finite element method (FEM) is a very powerful tool for transformer design and analysis; it takes into account the non-linear behavior of the core. Also the comparison of 2-D FEM and 3-D FEM is shown. The results of the proposed numerical method are compared with the experimental results (performed at Atlanta Electricals Pvt. Ltd.).