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Account of External Cooling Medium Temperature while Modeling Thermal Processes in Power Oil-Immersed Transformers

https://doi.org/10.21122/1029-7448-2004-0-5-42-47

Abstract

The paper proposes a thermal model of a power oil-immersed transformer as a system of four homogeneous bodies: winding, oil, core and cooling medium. On the basis of experimental data it is shown that such model describes more precisely actual thermal processes taking place in a transformer than the thermal model accepted in GOST 14209-85.

About the Authors

Yu. A. Rounov
Pavel Sukhoi State Technical University of Gomel
Belarus


O. G. Shirokov
Pavel Sukhoi State Technical University of Gomel
Belarus


D. I. Zalizny
Pavel Sukhoi State Technical University of Gomel
Belarus


D. M. Los
Pavel Sukhoi State Technical University of Gomel
Belarus


References

1. ГОСТ 14209-85. Трансформаторы силовые масляные общего назначения: Допус¬тимые нагрузки. - М.: Государственный комитет СССР по стандартам, 1987.

2. Боднар В. В. Нагрузочная способность силовых масляных трансформаторов. - М.: Энергоатомиздат, 1983.

3. Киш Л. Нагрев и охлаждение трансформаторов.-М.: Энергоатомиздат, 1980.

4. IЕС loading guide for oil immersed power transformers. - lEC Revision of Publication 354, draft 2,1991.

5. Зализный Д. И. Использование тепловой модели для теоретических иссле¬дований тепловых процессов в масляных трансформаторах 10/0,4 кВ // Вестник ГГТУ им. П. О. Сухого. - 2001. - № 3/4. - С. 51-60.


Review

For citations:


Rounov Yu.A., Shirokov O.G., Zalizny D.I., Los D.M. Account of External Cooling Medium Temperature while Modeling Thermal Processes in Power Oil-Immersed Transformers. ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations. 2004;(5):42-47. (In Russ.) https://doi.org/10.21122/1029-7448-2004-0-5-42-47

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ISSN 1029-7448 (Print)
ISSN 2414-0341 (Online)