NDLI: Ground potentials and currents in substations fed exclusively by power cables- an example: Leblon substation

Content Provider	IEEE Xplore Digital Library
Author	Sobral, S.T. Azzam, G. Sobral, S.C. Cruz, C. Arcon, A. Ferraz, M.
Copyright Year	2004
Abstract	This article shows how the "fault application transfer effect", presented in a previous article, can be applied to Leblon substation ground system. This effect explains the values of ground currents and ground potentials, which occur during a fault to ground at Leblon substation. The article complements the previous article introducing a set of procedures with allows the calculation of the self and mutual impedances related to phases, cable sheaths, and the bare copper conductor which follow them inside the cable trench. It shows also how to determine the amount of fault current that flows along the cable sheaths and along the auxiliary copper conductor. The article reminds also the procedures, which allows the solution of a ladder circuit coupled with the phases, with any number of peels. As the calculations are carried out using the decoupled method, a summary of it is also presented in the article.
Starting Page	91
Ending Page	95
File Size	446635
Page Count	5
File Format	PDF
ISBN	0780387759
DOI	10.1109/TDC.2004.1432357
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-08
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Substations Power cables Grounding Voltage Conductors Copper Impedance Circuit faults Cable shielding Fault currents
Content Type	Text
Resource Type	Article

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