Article

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

Int. Copper Assoc., Shanghai, China
IEEE Transactions on Power Delivery (impact factor: 1.35). 08/2010; DOI:10.1109/TPWRD.2010.2046681 pp.1229 - 1235
Source: IEEE Xplore

ABSTRACT 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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Keywords

analytical method
 
cable bundles
 
cables
 
different currents
 
experimental verification
 
heat-source density
 
identical results
 
main feature
 
models
 
steady-state
 
steady-state load
 
transient temperature rises
 

Song-Bo Liu