The presented paper introduces a significant simplification
into the application procedure of the methodology that enables the analysis of
electric circuits spontaneously formed by HV and EHV distribution cable lines.
The pulsating magnetic field created by currents in these lines induces
voltages and currents in all surrounding metal installations typical of urban
environments. Each of the induced currents creates its own magnetic field which
acts in such a way that reduces all other induced currents including currents
in the inducing cable line. The problem
arises because these installations are mainly situated under the surface of the
ground, and because of that, their constructive characteristics and spatial
positions are usually uncertain or completely unknown. Because of that, the
problem of determining the effects of the inductive interaction of a certain
cable line and these installations was for a long time considered practically
unsolvable. Only recently was developed a methodology that enables its solving
based on the specially defined test measurement and an equivalent cable sheath
introduced in the developed analytical procedure. This paper shows that the
methodology is applicable for determining any of the inductive interaction
effects by using the results of only one test measurement, or based on the
simultaneous measurements of voltages and currents at the ends of an HV or EHV
cable line.
Author(s) Details:
Ljubivoje M. Popovic,
J. P. Elektrodistribucija-Beograd, Elektroprivreda Srbije,
Masarikova 1-3, 11000 Beograd, Serbia.
Please see the link here: https://stm.bookpi.org/CPSTR-V9/article/view/14171
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