Access the full text.
Sign up today, get DeepDyve free for 14 days.
Loading next page...
/lp/emerald-publishing/local-overheating-of-transformers-with-high-currents-07io7zX7ys
References (5)
-
N. Takahashi, T. Sakura, Zhiguang Cheng (2001)
Nonlinear analysis of eddy current and hysteresis losses of 3-D stray field loss model (Problem 21)IEEE Transactions on Magnetics, 37
-
Yang Junyou, Tang Renyuan, Wang Cheng-yuan, Zhou Meiwen, Chen Yongbin (1996)
New preventive measures against stray field of heavy current carrying conductorsIEEE Transactions on Magnetics, 32
-
Yang Junyou, Tang Renyuan, Li Yan, Chen Yongbin (1994)
Eddy current fields and overheating problems due to heavy current carrying conductorsIEEE Transactions on Magnetics, 30
-
Tang Renyuan, Li Yan, Lin Feng, Tian Lijian (1996)
Resultant magnetic fields due to both windings and heavy current leads in large power transformersIEEE Transactions on Magnetics, 32
-
S. Ho, Y. Li, R.Y. Tang, K. Cheng, S.Y. Yang (2008)
Calculation of Eddy Current Field in the Ascending Flange for the Bushings and Tank Wall of a Large Power TransformerIEEE Transactions on Magnetics, 44
- Publisher
- Emerald Publishing
- Copyright
- Copyright © Emerald Group Publishing Limited
- ISSN
- 0332-1649
- DOI
- 10.1108/COMPEL-07-2014-0164
- Publisher site
- See Article on Publisher Site
Abstract
Purpose – The purpose of the paper is to compare losses and temperatures in power transformer tanks for different high current lead arrangements. Design/methodology/approach – 3D computational tools MagNet and ThermNet based on the finite element method are used to calculate magnetic field distribution in 3D models of power transformers. Eddy current losses in conducting metal parts are induced by the stray magnetic field of transformer windings and high current leads. From loss distribution and appropriate cooling condition temperature values are calculated. Findings – From calculation results it is possible to understand advantages and disadvantages of different lead arrangements. The analysis is finalized with a short presentation of the influence of magnetic shielding height on temperature and loss values. Originality/value – Results give transformer designer clearer understanding of precautions that should be taken for avoiding high temperatures on the tank wall of a transformer.
Journal
COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering – Emerald Publishing
Published: Mar 2, 2015