Negative corona discharge in air with small SF{sub 6} content
Conference
·
OSTI ID:529640
- Inst. de Recherche d`Hydro-Quebec, Varennes, Quebec (Canada)
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.
- OSTI ID:
- 529640
- Report Number(s):
- CONF-960614--; ISBN 0-7803-3531-7
- Country of Publication:
- United States
- Language:
- English
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