Estimation of steady-state temperature distribution in power transformer by using finite difference method

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2010

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Gözcü, Ferhat Can

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Estimating the temperature distribution in transformer components in the design stage and during the operation is crucial since temperatures above the thermal limits of these components might seriously damage them. Thermal models are used to predict this vital information prior to actual operations. In this study, a two-dimensional, steady-state model based on the Finite Difference Method (FDM) is proposed to estimate the temperature distribution in the three-phase, SF6 gas insulatedcooled power transformer. The model can predict the temperature distribution at the specific discredited locations in the transformer successfully. This study also compares predicted temperatures of the model proposed in this study with the results of the previous study which is based on Finite Element Method (FEM) and the results of the research performed by the designers of the transformer. The results show that FDM model proposed in this study can be used to estimate the temperature distribution in the transformer with an acceptable accuracy and can be an alternative of the previous study which is based on FEM.

Subject Keywords

Electrical engineering.

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http://etd.lib.metu.edu.tr/upload/3/12611592/index.pdf
https://hdl.handle.net/11511/19435

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

F. C. Gözcü, “Estimation of steady-state temperature distribution in power transformer by using finite difference method,” M.S. - Master of Science, Middle East Technical University, 2010.