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Content available Analysis of the influence of current frequency on the thermal field of the insulated busbar
Gołębiowski J., Zaręba M.
Bulletin of the Polish Academy of Sciences. Technical Sciences
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2020
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Vol. 68, nr 1
89--97
EN
The paper analysed the influence of current frequency on the thermal field of the insulated busbar. Its physical model consists of two hollow cylinders and a solid cylinder with different material properties. In turn, the mathematical model is a system of heat conduction equations with the appropriate set of the boundary, initial and continuity conditions. The problem was solved using the modified Green’s method. As a result, the following characteristics and parameters of the busbar were determined as a functions of frequency: heating curves, local time constants, steady-state current ratings, and stationary temperature profiles. The results were positively verified by finite element method.
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