Analysis of electric stress distribution due to load current in solid dielectric cables.

Document Type

Conference Proceeding

Publication Date

12-1-1988

Abstract

An analytic model is developed to estimate quantitatively the effect of the load current as the source of electrical stress in solid dielectric cable. The wave equation for the conductor is solved by dividing the conductor into an infinite number of infinitesimally thin cylindrical shells to account for the distribution of current density within the conductor. The induced electric field as a result of loading power cables is investigated at different operating and testing conditions. It is demonstrated that this method can be useful in calculating the actual stress in cables for heavy current applications and accelerating testing (aging) at higher frequencies. The model has been successful in explaining the role of the pertinent cable parameters, and also in understanding the influence of the various factors on the electric field distribution in the insulation layer.

Identifier

0024133483 (Scopus)

Publication Title

Conference Record of IEEE International Symposium on Electrical Insulation

ISSN

01642006

First Page

339

Last Page

342

Volume

1988

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