Abstract

This paper represents the effectiveness of finite element method in designing a dry type transformer to determine\nthe temperature rise. A 160 kVA Vacuum Pressure Impregnated (VPI) tap wound LT isolation transformer having nominal\nvoltage ratio of 415 / 415 Volt has been designed and subjected to a temperature rise test by simulation load method. A 3D\nfinite element method using Variational Approach was adopted in designing the transformer to estimate the temperature rise\nunder full load condition for linear loads.