Breakdown in sulphur hexafluoride and nitrogen under direct and impulse voltages

SUMMARYThe flashover voltage with a backside electrode was found to be lower than that without the backside electrode. Under microsecond pulse voltage application, we describe the characteristics of a creeping discharge developed in the narrow gap with the backside electrode. Using a CCD camera and ultrahigh-speed camera, we observed the corona extension processes. The lowest flashover voltage was found to be obtained at positive polarity with a SF 6 content D = 3%. In the corona extension obtained using an ultrahigh-speed camera, peculiar differences were observed in the corona extension process. The corona extension increased, and rapid flashover was observed at D = 3%. Using a CCD camera, small coronas were detected from the backside electrode.

show abstract

“…In addition, electron detachment from SF 6 induced by local high fields has been reported by Binns and Hood [15].…”

Section: Discussionmentioning

confidence: 73%

“…Kuffel and Yializis report that a corona stabilization effect in N 2 occurred at higher gas pressures that that in SF 6 , and that corona instability in SF 6 was induced by a small admixture of SF 6 at higher pressures [14]. In addition, electron detachment from SF 6 induced by local high fields has been reported by Binns and Hood [15].…”

Section: Discussionmentioning

confidence: 77%

Characteristics of N₂/SF₆ mixture gas in creeping discharge developing in narrow gap with backside electrode

Hirata

Ueno

Nakayama

2006

Electrical Engineering Japan

View full text Add to dashboard Cite

show abstract

“…The advantages of SF 6 gas over air for DC, 50/60 Hz are well known in the electric power industry [2][3][4][5][6][7][8][9][10][11][12][13][14]. Dielectric properties of SF 6 at high frequency (HF) in MHz range have also been investigated [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Breakdown voltage of compressed SF₆ at very low frequency/low frequency (VLF/LF)

Han

Gorur

Hansen

2010

Int Trans Elec Energy Syst

View full text Add to dashboard Cite

SUMMARY The breakdown voltage (BDV) of compressed sulfur hexafluoride (SF6) in the pressure range of 1–5 atm at 30 kHz, the frequency used by Navy for communications with vessels, is presented. Experiments were conducted in both uniform field (plane–plane gap) and non‐uniform field (rod–plane gap). The impact of pressure on the BDV is quantitatively analyzed. The pressure correction factors for calculating the BDV of SF6 at 30 kHz have been developed from knowledge of breakdown characteristics of air and from regression models. Copyright © 2010 John Wiley & Sons, Ltd.

show abstract

The Triggered Behavior of a Controlled Corona Stabilized Cascade Switch

Given

Wilson

Timoshkin

et al. 2012

IEEE Trans. Plasma Sci.

View full text Add to dashboard Cite

Breakdown in sulphur hexafluoride and nitrogen under direct and impulse voltages

Cited by 4 publications

References 10 publications

Characteristics of N₂/SF₆ mixture gas in creeping discharge developing in narrow gap with backside electrode

Characteristics of N₂/SF₆ mixture gas in creeping discharge developing in narrow gap with backside electrode

Breakdown voltage of compressed SF₆ at very low frequency/low frequency (VLF/LF)

The Triggered Behavior of a Controlled Corona Stabilized Cascade Switch

Contact Info

Product

Resources

About

Breakdown in sulphur hexafluoride and nitrogen under direct and impulse voltages

Cited by 4 publications

References 10 publications

Characteristics of N2/SF6 mixture gas in creeping discharge developing in narrow gap with backside electrode

Characteristics of N2/SF6 mixture gas in creeping discharge developing in narrow gap with backside electrode

Breakdown voltage of compressed SF6 at very low frequency/low frequency (VLF/LF)

The Triggered Behavior of a Controlled Corona Stabilized Cascade Switch

Contact Info

Product

Resources

About

Characteristics of N₂/SF₆ mixture gas in creeping discharge developing in narrow gap with backside electrode

Characteristics of N₂/SF₆ mixture gas in creeping discharge developing in narrow gap with backside electrode

Breakdown voltage of compressed SF₆ at very low frequency/low frequency (VLF/LF)