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Calculation of the Steady-State and Transient Temperature Rises of Round Cable Bundles

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1 Author(s)
Song-Bo Liu ; International Copper Association, China

An analytical method of calculating the steady-state and transient temperature rises (T.R.s) for round cable bundles is proposed in this paper. The main feature of the proposed approach, which distinguishes it from the models published earlier, is that the cables in a bundle can be loaded with different currents and the heat-source density does not have to be uniform in all conductors. This paper also presents an experimental verification of the proposed model. It is also shown that the proposed method gives almost identical results with the IEC approach for a steady-state load and a uniform current density in all cables.

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IEEE Transactions on Power Delivery  (Volume:25 ,  Issue: 3 )