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2018-02-25
First Principles Model of Electric Cable Braid Penetration with Dielectrics
By
Progress In Electromagnetics Research C, Vol. 82, 1-11, 2018
Abstract
In this paper, we report the formulation to account for dielectrics in a first principles multipole-based cable braid electromagnetic penetration model. To validate our first principles model, we consider a one-dimensional array of wires, which can be modeled analytically with a multipole-conformal mapping expansion for the wire charges; however, the first principles model can be readily applied to realistic cable geometries. We compare the elastance (i.e. the inverse of the capacitance) results from the first principles cable braid electromagnetic penetration model to those obtained using the analytical model. The results are found in good agreement up to a radius to half spacing ratio of 0.5-0.6, depending on the permittivity of the dielectric used, within the characteristics of many commercial cables. We observe that for typical relative permittivities encountered in braided cables, the transfer elastance values are essentially the same as those of free space; the self-elastance values are also approximated by the free space solution as long as the dielectric discontinuity is taken into account for the planar mode.
Citation
Salvatore Campione, Larry Kevin Warne, William L. Langston, and Lorena I. Basilio, "First Principles Model of Electric Cable Braid Penetration with Dielectrics," Progress In Electromagnetics Research C, Vol. 82, 1-11, 2018.
doi:10.2528/PIERC17103010
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