NDLI: Impact of MV Ground Fault Current Distribution on Global Earthing Systems

Content Provider	IEEE Xplore Digital Library
Author	Pons, E. Colella, P. Napoli, R. Tommasini, R.
Copyright Year	1972
Abstract	Global earthing systems (GESs), created by the interconnection of local earthing systems, should guarantee the absence of dangerous touch voltages. One of the reasons for this safety characteristic of GESs is the fault current distribution between grounding electrodes and medium-voltage (MV) cable sheaths: Only a small portion of the fault current is injected into the ground by the ground grid of the faulty substation. In systems with isolated neutral or with resonant earthing, this effect may be sufficient to provide safety from electric shock. In this paper, a model describing the behavior of the MV distribution system with interconnected grounding electrodes during a ground fault is built. It is then used to analyze the impact of different factors on the fault current distribution. A sensitivity analysis is performed, varying the main parameters, and the results are used to draw some conclusions on the current distribution influence on GESs.
Sponsorship	IEEE Industry Applications Society
Starting Page	4961
Ending Page	4968
Page Count	8
File Size	1590570
File Format	PDF
ISSN	00939994
Volume Number	51
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Substations Conductors Power cables Grounding Cable shielding Fault currents Resistance Single line to ground fault. Electrical safety Global earthing systems Power distribution faults single line to ground fault (SLGF) global earthing systems (GESs) grounding power distribution faults
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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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Influence of Metal Installations Surrounding the Feeding Cable Line on the Ground Fault Current Distribution in Supplied Substations

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

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