Thermal Analysis of Power Transformer Using 2D and 3D Finite Element Method

Mohamed S. Seddik (), Jehan Shazly and Magdy B. Eteiba
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Mohamed S. Seddik: Department of Electrical Engineering, University of Fayoum, Fayoum 63514, Egypt
Jehan Shazly: Department of Electrical Engineering, University of Fayoum, Fayoum 63514, Egypt
Magdy B. Eteiba: Department of Electrical Engineering, University of Fayoum, Fayoum 63514, Egypt

Energies, 2024, vol. 17, issue 13, 1-23

Abstract: An accurate simulation and computational analysis of temperature distribution in large power transformers used in power plants is crucial during both the design and operational phases. This study introduces a thermal modeling analysis encompassing two- and three-dimensional (2D and 3D) approaches for power transformers. The mathematical model for heat diffusion follows the Finite Element Method (FEM) approach. Validation of the computed results involves comparing them against measurements from Hyundai’s test report for both 2D and 3D models, aiming to identify the most effective solution. Additionally, the thermal dynamics of power transformers under diverse operational conditions, specifically oil-immersed ones, are examined. The efficacy of this model is confirmed through testing on a step-up transformer at Kureimat station in Egypt, with specifications including three-phase, 50 Hz, 16.5/240 KV, nine taps, and cooling type (ONAN/ONAF1/ONAF2).

Keywords: step-up power transformer; 2D and 3D thermal model; finite element; heat transfer; losses (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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