Current status of experimental research on surface discharge in SF6/N2 mixture gas

Junbo Deng; Jianyi Xue; Guanjun Zhang; Yanhua Han; Lu Pu; Akiko Kumada

doi:10.13336/j.1003-6520.hve.20160405015

Current status of experimental research on surface discharge in SF₆/N₂ mixture gas

Junbo Deng
, Jianyi Xue
, Guanjun Zhang
, Yanhua Han
, Lu Pu
, Akiko Kumada

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Because of the strong greenhouse effect of SF₆ gas, its usage is now increasingly limited. To decrease the usage of SF₆, the application of SF₆/N₂ mixture gas is an alternative way. Surface insulation is the weakest point for GIS, the charge accumulation on insulator surface can greatly distort the local electrical field and trigger the surface discharge when suffered from overvoltage. In SF₆/N₂ mixture gas, under certain conditions, the surface streamer will transit into leader. The streamer propagation based on numerical simulation can not reveal the whole process of discharge propagation. The mechanism of surface discharge in SF₆/N₂ mixture gas can be concluded after examining both experimental measurement and numerical simulation.

Original language	English
Pages (from-to)	1190-1198
Number of pages	9
Journal	Gaodianya Jishu/High Voltage Engineering
Volume	42
Issue number	4
DOIs	https://doi.org/10.13336/j.1003-6520.hve.20160405015
State	Published - 30 Apr 2016

Keywords

Charge accumulation
Electrostatic probe
Mixture gas
Potential distribution
Streamer discharge
Surface charge distribution
Surface discharge

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10.13336/j.1003-6520.hve.20160405015

Cite this

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title = "Current status of experimental research on surface discharge in SF6/N2 mixture gas",

abstract = "Because of the strong greenhouse effect of SF6 gas, its usage is now increasingly limited. To decrease the usage of SF6, the application of SF6/N2 mixture gas is an alternative way. Surface insulation is the weakest point for GIS, the charge accumulation on insulator surface can greatly distort the local electrical field and trigger the surface discharge when suffered from overvoltage. In SF6/N2 mixture gas, under certain conditions, the surface streamer will transit into leader. The streamer propagation based on numerical simulation can not reveal the whole process of discharge propagation. The mechanism of surface discharge in SF6/N2 mixture gas can be concluded after examining both experimental measurement and numerical simulation.",

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T1 - Current status of experimental research on surface discharge in SF6/N2 mixture gas

AU - Deng, Junbo

AU - Xue, Jianyi

AU - Zhang, Guanjun

AU - Han, Yanhua

AU - Pu, Lu

AU - Kumada, Akiko

PY - 2016/4/30

Y1 - 2016/4/30

N2 - Because of the strong greenhouse effect of SF6 gas, its usage is now increasingly limited. To decrease the usage of SF6, the application of SF6/N2 mixture gas is an alternative way. Surface insulation is the weakest point for GIS, the charge accumulation on insulator surface can greatly distort the local electrical field and trigger the surface discharge when suffered from overvoltage. In SF6/N2 mixture gas, under certain conditions, the surface streamer will transit into leader. The streamer propagation based on numerical simulation can not reveal the whole process of discharge propagation. The mechanism of surface discharge in SF6/N2 mixture gas can be concluded after examining both experimental measurement and numerical simulation.

AB - Because of the strong greenhouse effect of SF6 gas, its usage is now increasingly limited. To decrease the usage of SF6, the application of SF6/N2 mixture gas is an alternative way. Surface insulation is the weakest point for GIS, the charge accumulation on insulator surface can greatly distort the local electrical field and trigger the surface discharge when suffered from overvoltage. In SF6/N2 mixture gas, under certain conditions, the surface streamer will transit into leader. The streamer propagation based on numerical simulation can not reveal the whole process of discharge propagation. The mechanism of surface discharge in SF6/N2 mixture gas can be concluded after examining both experimental measurement and numerical simulation.

KW - Charge accumulation

KW - Electrostatic probe

KW - Mixture gas

KW - Potential distribution

KW - Streamer discharge

KW - Surface charge distribution

KW - Surface discharge

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Current status of experimental research on surface discharge in SF₆/N₂ mixture gas

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