Abstract
This paper deals with the computation of the time harmonic eddy current losses in a long nonmagnetic bus-bar with a rectangular crosssection due to the proximity of the various components of the power system. A quasi three dimensional analysis is presented in which the bar is assumed infinitely long but the axial nonuniformity of the field is taken into consideration. Fourier integral is used to represent the field as a spectrum of axially travelling waves. The induced fields due to each wave are analyzed through a boundary integral equations formulation. Numerical results are presented for busbars connected to an air cored shunt reactor. Potential problems arising from these losses are indicated and simple design guides are given.
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