NDLI: Equivalent Circuit of Single-Core Cable Lines Suitable for Grounding Systems Analysis Under Line-to-Ground Faults

Content Provider	IEEE Xplore Digital Library
Author	Todorovski, M. Ackovski, R.
Copyright Year	1986
Abstract	This paper presents two approaches where the single-core cable line and an additional conductor laid in parallel can be reduced to a simple equivalent π-circuit containing an active element beside the usual passive impedances. The parameters of the equivalent circuit are calculated using a numerical approach where the distributed parameter line was discretized and an analytical approach is based on the wave propagation theory. A series of tests has been performed to determine error levels in both cases showing that they are less than 1%. With numerical examples, we show that the cable equivalent circuit offers a simple way to calculate voltages in complex grounding systems. The results are in good agreement with the previously published calculated and/or measured values. Both approaches offer the possibility of calculating voltage and current distribution along the cable line which gives insight into the significance of each cable component in the complex grounding system.
Sponsorship	IEEE Power Engineering Society
Starting Page	751
Ending Page	759
Page Count	9
File Size	1736457
File Format	PDF
ISSN	08858977
Volume Number	29
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Conductors Cable shielding Power cables Grounding Equivalent circuits Admittance Equations underground cable lines Cable sheaths distributed parameter circuits equivalent circuits fault currents grounding electrodes
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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