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A model to predict current distributions in heavy current parallel conductor configurations

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2 Author(s)
A. A. Ghandakly ; Dept. of Electr. Eng., Toledo Univ., OH, USA ; R. L. Curran

This paper presents a model for predicting the current distribution in high current cables consisting of relatively widely spaced parallel conductors. These cables are typically used in electric glass melters to interconnect the power transformers and the melter secondary bus installations. Due to mutual inductive coupling between the conductors, electromagnetic forces will cause a nonuniform current distribution. The proposed model has been developed to account for these forces in specified parallel conductor configurations. The model also takes into account the “skin effect” impact on the individual conductor resistances and self inductances. The model is coded in a simple computer program which can be used to predict current distributions in electric glass melters and similar heavy current applications. Results obtained using the proposed model for a Scott-T transformer system with a variety of multiconductor cable configurations are presented in the paper for demonstration purposes

Published in:

IEEE Transactions on Industry Applications  (Volume:30 ,  Issue: 2 )