DocumentCode
998581
Title
FEM analysis of DC saturation to assess transformer susceptibility to geomagnetically induced currents
Author
Lu, Shu ; Liu, Yilu
Author_Institution
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Volume
8
Issue
3
fYear
1993
fDate
7/1/1993 12:00:00 AM
Firstpage
1367
Lastpage
1376
Abstract
Results are presented of a systematic finite element (FEM) simulation of power transformer susceptibility to geomagnetically induced currents (GICs). DC saturation patterns for five different transformer core designs are examined using FEM. Magnetic fields along various traverses are provided. Impedance matrix entries of a single-phase power transformer are compared for normal and DC saturation operations. The fundamental transformer magnetization mechanism under GICs is discussed.<>
Keywords
electromagnetic field theory; finite element analysis; geomagnetism; magnetisation; power transformers; transformer cores; DC saturation; FEM; geomagnetically induced currents; geomagnetism; impedance matrix; magnetic fields; magnetization; power transformer susceptibility; single-phase; transformer core designs;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/61.252663
Filename
252663
Link To Document