Temperature distribution in a disc-type transformer winding

Jaury Adi Wijaya, Wenyu Guo, Tadeusz Czaszejko, Daniel David Martin, Nick Lelekakis, Dejan Susa

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

7 Citations (Scopus)

Abstract

The winding hot-spot temperature is an extremely important factor limiting the loading capability of a power transformer. High temperature also accelerates the aging of paper insulation and thus reduces the lifetime of a transformer. Ohmic losses in the winding are the main source of heat inside a transformer. Precise knowledge of these losses is very important to determine the winding temperature distribution. Furthermore, in an oil-immersed power transformer, oil is used both as insulation and as liquid coolant. In a disc-type winding, a non-uniform coolant flow, in horizontal ducts, can contribute to local overheating. This article describes a new approach to estimate the winding temperature distribution, in which losses are computed by the finite element method whereas the coolant circulation and the temperature distribution are obtained from a thermal-hydraulic network representation of the winding.
Original languageEnglish
Title of host publicationProceedings of the 2012 7th IEEE Conference on Industrial Electronics and Applications (ICIEA)
EditorsXing Zhu
Place of PublicationUSA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages838 - 843
Number of pages6
ISBN (Print)9781457721182
DOIs
Publication statusPublished - 2012
EventIEEE Conference on Industrial Electronics and Applications 2012 - Singapore, Singapore
Duration: 18 Jul 201220 Jul 2012
Conference number: 7th
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6337024 (Proceedings)
http://ieeeiciea.org/2012/index.html

Conference

ConferenceIEEE Conference on Industrial Electronics and Applications 2012
Abbreviated titleICIEA 2012
Country/TerritorySingapore
CitySingapore
Period18/07/1220/07/12
Internet address

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