Title :
Calculations of Transient Eddy Current Field and Dynamic Short Circuit Forces in a Large Power Transformer
Author :
Ho, S.L. ; Li, Y. ; Yang, S.Y. ; Wong, H.C. ; Wong, K.F.
Author_Institution :
Hong Kong Polytech. Univ.
Abstract :
In this paper, the T-Omega finite element method (FEM) is proposed to study the three dimensional (3D) transient eddy current field and electromagnetic forces acting upon the coils in power transformers. The radial press stress on the coil sections are included in the computation. The axial vibration, displacement and dynamic force of the coil sections are analyzed by modeling the coil as a mass-spring
Keywords :
coils; eddy currents; electromagnetic forces; finite element analysis; power transformers; transient analysis; 3D transient eddy current field calculations; FEM; T-Omega finite element method; axial vibration force; dynamic short circuit forces; electromagnetic forces; large power transformer coils; mass-spring; radial press stress; Algorithm design and analysis; Clamps; Coils; Eddy currents; Low voltage; Magnetic circuits; Magnetic field measurement; Magnetic flux; Power transformers; Stress;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1632971
