Advanced Thermal Modeling and Experimental Performance of Foil-Winding Transformer

This paper presents an analysis of the thermal behavior of a four hundred kVA ONAN distribution transformer. The influence of skin-effect on foil-winding comes into view from this study. The model, conceived as a Three D temperature-fluid coupled field system, considers the modes of heat transfer, i...

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Bibliographic Details
Published in2023 5th Asia Energy and Electrical Engineering Symposium (AEEES) pp. 13 - 17
Main Authors Zhan, Huamao, Duan, Yanda
Format Conference Proceeding
LanguageEnglish
Published IEEE 23.03.2023
Subjects
Computational modeling
Electrical engineering
Foil-winding transformer
hot-spot temperature
Oil insulation
Oils
Temperature distribution
Thermal engineering
winding temperature profile
Windings
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Summary:This paper presents an analysis of the thermal behavior of a four hundred kVA ONAN distribution transformer. The influence of skin-effect on foil-winding comes into view from this study. The model, conceived as a Three D temperature-fluid coupled field system, considers the modes of heat transfer, including natural convection. We computed oil velocity profile and oil and winding temperature distribution, patterns thereafter experimentally validated. Since this model identifies hot-spot and flow patterns more accurately than its predecessors, it creates interesting possibilities for new designs in distribution foil- winding transformers.
DOI:10.1109/AEEES56888.2023.10114241