Determination of Total Resistive Loss in a Multiple Circuit, Three-Phase Cable System

An analytical approach is presented for estimating the total resistive loss in the randomly positioned conductors of a multiple circuit, three-phase cable system, as in a duct bank. By breaking the total resistive loss into three components, i.e., skin effect loss and two independent proximity effec...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2011-07, Vol.26 (3), p.1939-1945
Main Authors: Zhang, L., Xin Tian, Boggs, S. A., Bartolucci, E. J.
Format: Article
Language:English
Subjects:
Applied sciences
Banks
Blocking
Cables
Circuits
Conductors
Ducts
Eddy current loss
Eddy currents
Electric connection. Cables. Wiring
Electrical engineering. Electrical power engineering
Exact sciences and technology
Mathematical analysis
Power cables
Proximity effect
Proximity effect (electricity)
proximity effect loss
Resistance
Skin
Skin effect
Various equipment and components
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Summary:An analytical approach is presented for estimating the total resistive loss in the randomly positioned conductors of a multiple circuit, three-phase cable system, as in a duct bank. By breaking the total resistive loss into three components, i.e., skin effect loss and two independent proximity effect losses, the problem is simplified so that each loss component can be computed separately. A semi-empirical formula for determining the proximity effect loss from a single external source current is established, which is the building block for solving the total proximity effect loss. For a typical three-phase duct bank scenario, the proposed approach achieves good agreement in predicting the total resistive loss when compared to finite-element analysis simulations.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2011.2142199