NDLI: Current north american assessment and refurbishment practices of substation grounding systems

Content Provider	IEEE Xplore Digital Library
Author	Gillies, D.A. Stewart, R.P. Randolph, J.D. Abdallah, H. Brown, R.S. Clelland, R. Dastous, J.-B. Irvine, J. Laird, D. Mundon, J. Perkins, S. Rogers, D. Thompson, B. Wardin, J.
Copyright Year	1986
Description	A survey was undertaken on the current assessment and refurbishment practices of North American utilities regarding substation grounding systems. The information was gathered using standard survey techniques where all interested parties were requested to fill out a short written survey and return it with the understanding that their responses would be kept anonymous. Survey results show that almost all utilities evaluate the integrity of their ground grids at some point, and have maintenance or engineering standards for determining the integrity. Test equipment is frequently used to evaluate integrity, and ground grids not meeting these standards are commonly upgraded. The results also show that most use high resistivity surfacing material, yet very few test the resistivity of the material at the time it is installed. This paper provides guidance on the recommended best practices based on these survey results, which can be used for benchmarking purposes. It also includes a short discussion on the importance of maintaining the substation grounding system.
Sponsorship	IEEE Power Engineering Society
Starting Page	1886
Ending Page	1889
Page Count	4
File Size	57469
File Format	PDF
ISSN	08858977
Volume Number	20
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-01
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 Grounding Conductivity Standards Test equipment Conducting materials Best practices System testing Power engineering and energy Materials testing test meters Assessment conductors ground faults refurbishment resistivity rock layer substation grounding systems survey
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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