TITLE:
3D Finite Element Analysis of the Stray Loss in Power Transformer Structure Parts
AUTHORS:
Yan Li, Longnv Li, Yongteng Jing, Bo Zhang
KEYWORDS:
Finite Element Method; Stray Loss; Leakage Magnetic Field; Local Overheating; Magnetic Shields
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
November
13,
2013
ABSTRACT: In order to analyze the
leakage magnetic field and stray loss in power transformer, leakage magnetic
field and stray loss in structure parts of a power transformer are calculated
by three-dimensional (3-D) non-linear time harmonic finite element method
(FEM). The results show that stray loss and loss density in structure parts are
large and which may lead to local overheating and affect performance of the
transformer. The magnetic shields are used to reduce the stray loss and loss
density of power transformer. Effects of these shields on stray loss and loss
density of structure parts are discussed. The results show that stray loss and
local overheating can be reduced and eliminated effectively by adding magnetic
shields. It provides some references for the analysis of stray loss and
optimization design in transformer.