Onset voltage of corona in SF/sub 6/-N/sub 2/ mixtures

The onset voltages of positive and negative coronas are theoretically predicted for SF/sub 6/-N/sub 2/ mixtures. For positive onset, the method of calculation is based on the condition necessary for the onset streamer to propagate. For negative onset, the method of calculation is based on the criter...

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Bibliographic Details
Published in2000 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.00CH37132) Vol. 1; pp. 393 - 396 vol.1
Main Author El-Bahy, M.M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2000
Subjects
Absorption
Anodes
Corona
Electron emission
Electron mobility
Head
Ionization
Space charge
Sulfur hexafluoride
Voltage
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Summary:The onset voltages of positive and negative coronas are theoretically predicted for SF/sub 6/-N/sub 2/ mixtures. For positive onset, the method of calculation is based on the condition necessary for the onset streamer to propagate. For negative onset, the method of calculation is based on the criterion developed for the formation of repetitive negative corona pulses. The analysis is applied for rod-plane and sphere-sphere gaps. The calculated onset voltages obtained in both positive and negative coronas agree well with those measured values within /spl plusmn/10%.
ISBN:9780780364134
0780364139
DOI:10.1109/CEIDP.2000.885308