NDLI: Negative corona discharge in air with small SF/sub 6/ content

Content Provider	IEEE Xplore Digital Library
Author	Frechette, M.F. Kamel, S. Bartnikas, R. Larocque, R.Y.
Copyright Year	1996
Description	Author affiliation: IREQ, Varennes, Que., Canada (Frechette, M.F.)
Abstract	The influence of small amounts of SF/sub 6/ in air was examined over the corona pulse regime, using a plane point-plane geometry at a pressure of 800 Torr. With pure air, normal Trichel-type pulse behavior prevailed. Introduction of 1% by volume of SF/sub 6/ into the intervening air-gap space gave rise to drastic changes in the discharge-regime characteristics. Narrower and more intense pulses resulted, and the pulse amplitudes as well as the pulse intervals in the discharge were more broadly distributed: the corona pulse regime exhibited characteristics similar to those found in pure SF/sub 6/. Data were statistically treated, and analyzed in terms of the most recurrent values of the current pulse amplitude and associated pulse interval. The variation of these parameters, when taken one by one or in a combination, was found to be sufficient to detect and characterize the observed changes in comparison to the discharge regime in air.
Starting Page	801
Ending Page	805
File Size	450801
Page Count	5
File Format	PDF
ISBN	0780335317
ISSN	1089084X
DOI	10.1109/ELINSL.1996.549466
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-16
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Corona Sulfur hexafluoride Electrodes Geometry Air gaps Condition monitoring Insulation Fault diagnosis Partial discharges Testing
Content Type	Text
Resource Type	Article

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