Losses characterization on distribution transformer windings in frequency domain by means of finite element method (FEM): Part I

This paper presents the losses characterization on distribution transformers windings. The losses are determined through the Frequency Response Analysis (FRA), using the Finite Element Method (FEM). The losses on the windings are evaluated on a frequency range established from 100Hz to 2MHz for a specific transformer. Finally, a methodology is proposed, that can be applied to different transformers.