Calculation of Temperature Rise of the High-voltage Winding in the Power Transformer under DC Magnetic Biasing

DOI

10.2991/icmmcce-17.2017.229How to use a DOI?

Keywords

Temperature rise; Power transformer; DC magnetic biasing

Abstract

The larger power transformers are greatly affected by the DC magnetic biasing phenomenon, which may cause the local overheating and threaten the safe operation of the power transformer. We aimed at studying the temperature distribution and temperature rise in the power transformer under DC magnetic biasing current. A 240000 kVA/330 kA oil immersible power transformer is studied. The 3D model of the power transformer and the DC magnetic biasing injection are established, respectively. According to the calculation of fluid field and the high-voltage winding loss, the temperature distributions of the power transformer are obtained. The results show that the temperature rise and the high-voltage winding loss are greatly affected by the DC magnetic biasing phenomenon.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yunyan Xia
AU  - Yongming Xu
AU  - Yongsen Han
PY  - 2017/09
DA  - 2017/09
TI  - Calculation of Temperature Rise of the High-voltage Winding in the Power Transformer under DC Magnetic Biasing
BT  - Proceedings of the 2017 5th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering (ICMMCCE 2017)
PB  - Atlantis Press
SP  - 1298
EP  - 1303
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmcce-17.2017.229
DO  - 10.2991/icmmcce-17.2017.229
ID  - Xia2017/09
ER  -