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Experimental study of the voltage recovery characteristics of small air gaps

Authors :
I. Takahashi
Y. Komuro
Y. Kanzaki
T. Ojima
K. Tsuruta
Source :
IEEE Transactions on Plasma Science. 17:560-564
Publication Year :
1989
Publisher :
Institute of Electrical and Electronics Engineers (IEEE), 1989.

Abstract

The electrical recovery characteristics of relatively small air gaps between 0.3 and 9 mm were determined using a two-pulse method. The first pulse was used to over-volt the gap and initiate the arc current. The second pulse was used to determine the recovery voltage of the gap. A plot of the recovery voltage with time was obtained by varying the time delay of the second pulse relative to the arc extinction time of the first arc, in the time range form 50 mu s to 100 ms. It is found that the recovery characteristics are independent of the electrode materials (Cu, Al , St) and the arc current in the range from 40 to 200 A. It is also found that the shorter gaps and the rod plane gaps recover their dielectric strength faster than the longer gaps and the sphere gaps, respectively. >

Details

ISSN :
00933813
Volume :
17
Database :
OpenAIRE
Journal :
IEEE Transactions on Plasma Science
Accession number :
edsair.doi...........e9401ba8409b1f0f5804979ce31bc34e
Full Text :
https://doi.org/10.1109/27.32271