DocumentCode
1104989
Title
Ground resistance of concrete foundations in substation yards
Author
Thapar, Baldev ; Ferrer, Omar ; Blank, Donald A.
Author_Institution
Montana State Univ., Bozeman, MT, USA
Volume
5
Issue
1
fYear
1990
fDate
1/1/1990 12:00:00 AM
Firstpage
130
Lastpage
136
Abstract
The reinforced concrete foundations in a substation yard have extensive reinforcing steel in metallic connection with the ground conductor. The foundations may contribute significantly to the dissipation of the fault and leakage currents. Simple-to-use equations and graphs are presented to determine the ground resistance of various types of foundation encountered in substation yards. The validity of the analytical approach has been verified with scale model tests. The ground resistance of the foundations, estimated as suggested in the paper, can be used to evaluate the role of the foundations as a grounding element
Keywords
concrete; earthing; electric resistance; fault currents; substations; fault currents; ground conductor; ground resistance; leakage currents; reinforced concrete foundations; substation yards; Circuit faults; Concrete; Conductors; Fasteners; Grounding; Leakage current; Slabs; Steel; Substations; Testing;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/61.107265
Filename
107265
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