DocumentCode
938754
Title
A simple method for calculating core temperature rise in power transformers
Author
Ryder, Simon A. ; Vaughan, Ian J.
Author_Institution
Alstom Transformateurs de Puissance, Saint-Ouen, France
Volume
19
Issue
2
fYear
2004
fDate
4/1/2004 12:00:00 AM
Firstpage
637
Lastpage
642
Abstract
This paper presents a new method for calculating core temperature rise in large power transformers. A general formulation of the problem is made using the electrical analogy. This formulation extends to the L- and T-joints. An expression for the thermal resistance of the core material is found using analytical methods. A comparison of the results of the new method with measured values on two power transformers is presented.
Keywords
power transformers; temperature measurement; thermal resistance; transformer cores; L-joints; T-joints; core temperature rise calculation; electrical analogy; magnetic cores; power transformer thermal factors; power transformers; thermal resistance; Conducting materials; Cooling; Ducts; Kelvin; Lamination; Power transformers; Temperature; Thermal conductivity; Thermal resistance; Transformer cores;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/TPWRD.2003.820222
Filename
1278420
Link To Document