DocumentCode
1479544
Title
Measurements of grounding resistances for high impulse currents
Author
Sekioka, S. ; Hayashida, H. ; Hara, T. ; Ametani, A.
Author_Institution
Res. & Dev. Group, Kansai Tech Corp., Osaka, Japan
Volume
145
Issue
6
fYear
1998
fDate
11/1/1998 12:00:00 AM
Firstpage
693
Lastpage
699
Abstract
The paper presents field measurements of surge characteristics of a concrete pole, a buried single conductor and a grounding net for high-impulse currents with a maximum magnitude of 40 kA and with a wavefront duration of a few microseconds. The measured results show that the grounding resistances are greatly dependent on the applied currents and have a hysteresis characteristic. Finally, it is made clear that the grounding resistance has an energy dependence
Keywords
earthing; electric resistance measurement; overcurrent protection; power system measurement; power system protection; surge protection; 40 kA; buried single conductor; concrete pole; energy dependence; field measurements; grounding resistances; grounding resistances measurements; high impulse currents; hysteresis characteristic; surge characteristics; wavefront duration;
fLanguage
English
Journal_Title
Generation, Transmission and Distribution, IEE Proceedings-
Publisher
iet
ISSN
1350-2360
Type
jour
DOI
10.1049/ip-gtd:19982009
Filename
749171
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