Determination of Temperature Rise in a Dry Type Transformer using Finite Element Analysis

摘要

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