Cable models for grounding system analysis

doi:10.1109/TPWRD.2003.823180

2004-04-01

PRE

J. Nahman

DOI：10.1109/TPWRD.2003.823180

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摘要

En 中文

This paper derives compact models of cable feeders with insulated and uninsulated metallic sheaths/screens for practical grounding system analysis. These models make it possible to determine the equivalent admittance to ground of a cable feeder as viewed from the source substation, the potentials transferred to the consumer substations through cable sheaths/screens, and to assess the touch- and step-voltages at consumer substations caused by this potential. The application of the suggested approach is demonstrated for a branching feeder in case of both types of cables, for comparison.

Keyword:

cables

grounding systems

transferred potentials