Life estimation of distribution transformers under non-linear loads using calculated loss by 2D-FEM

Abstract EN

The significance of harmonics in power systems has increased substantially due to the use of solid state controlled loads and other high frequency devices.

An important consideration when evaluating the impact of harmonics is their effect on power system components and loads.

Transformers are major components in power systems.

The use of non-linear loads has increased the awareness of the potential reduction of a transformer life due to the increased losses.

The Finite Element Method (FEM) is a sophisticated and precise method for electrical machines design and analysis.

This method presents estimation about parameters and performances of machines in designing duration and before fabrication step.

In this paper, the effectual parameters on loss of a single phase transformer under non-linear load have been evaluated.

Then, under this condition, transformer life reduction has been considered and calculated using Finite Element Method (FEM).