Title :
Analyses of three-dimensional eddy current field and thermal problems in an isolated phase bus
Author :
Ho, S.L. ; Li, Y. ; Lo, Edward W C ; Xu, J.Y. ; Lin, X.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., China
fDate :
5/1/2003 12:00:00 AM
Abstract :
In this paper, a three-dimensional eddy current field model to calculate the eddy current losses in an isolated phase bus (IPB) is proposed. The rise in temperature of the conductors and enclosures in the IPB are evaluated using the proposed set of thermal equations. Computation results of a 20-kV/12.5-kA IPB scheme are reported to validate the algorithm. The withstand voltage ability and short-circuit stress of the IPB are also verified. The agreement between the computation and test results confirm that the design scheme being studied is successful and practical.
Keywords :
busbars; current density; eddy current losses; magnetic flux; thermal analysis; 12.5 kA; 20 kV; 3D eddy current field; 3D thermal problems; EM fields; eddy current losses; isolated phase bus; short-circuit stress; thermal equations; three-dimensional eddy current field; three-dimensional model; withstand voltage ability; Conductors; Eddy currents; Equations; Power generation; Temperature; Testing; Thermal conductivity; Thermal force; Thermal stresses; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.810403
