DocumentCode
2284023
Title
Analysis of eddy current loss and local overheating in oil tank of a large transformer using 3-D FEM
Author
Zhang, Yanli ; Yan, Bing ; Cao, Fan ; Xie, Dexin ; Zeng, Linsuo
Author_Institution
Sch. of Electr. Eng., Shenyang Univ. of Technol., Shenyang, China
fYear
2011
fDate
20-23 Aug. 2011
Firstpage
1
Lastpage
4
Abstract
Taking a 380000kVA/500kV large power transformer as an example, in this paper, the eddy current loss generated by leakage magnetic field in transformer tank is calculated by two 3-D finite element methods (FEM) and the factors to affect the computation accuracy of loss are discussed. By adding magnetic shielding to the surface of oil tank, the maximum magnetic flux density and total eddy current loss are computed, and the effect of different size of the magnetic shielding is discussed.
Keywords
eddy current losses; finite element analysis; magnetic shielding; power transformers; 3D finite element method; eddy current loss; leakage magnetic field; local overheating; magnetic flux density; magnetic shielding; oil tank; power transformer; voltage 500 kV; Magnetic cores; Magnetic flux; Magnetic noise; Magnetic shielding; Oil insulation; Surface impedance;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical Machines and Systems (ICEMS), 2011 International Conference on
Conference_Location
Beijing
Print_ISBN
978-1-4577-1044-5
Type
conf
DOI
10.1109/ICEMS.2011.6074007
Filename
6074007
Link To Document