Simulation of positive point streamer propagation in SF6 and its transient products

Author

Ming Ren ; Ming Dong ; Ai-Ci Qiu

Author_Institution

State Key Lab. of Electr. Insulation for Power Equip., Xi´an Jiaotong Univ., Xi´an, China

fYear

2012

fDate

23-27 Sept. 2012

Firstpage

189

Lastpage

192

Abstract

A series of cross section data of electron interactions with SF₆ has been used to calculate the positive point corona streamer in SF₆ by using CMP. The calculated external current during single discharge ion has been divided into three stages of development to reveal the formation and propagation of streamer through the relationships of time and position of detailed electron and ion densities and electric field by simulation. In addition, 1-D and 2-D distribution of some detailed transient and intermediate products during corona are obtained and discussed.

Keywords

SF₆ insulation; chemical mechanical polishing; corona; electric fields; ion density; numerical analysis; transient analysis; 1D distribution; 2D distribution; CMP; SF₆; cross-section data; electric field; electron interactions; ion density; numerical simulation; positive point corona streamer propagation simulation; single discharge ion; transient products; Anodes; Corona; Discharges (electric); Electric fields; Mathematical model; Sulfur hexafluoride; Transient analysis; SF6; decomposed products of SF6; numerical simulation; positive streamer;

fLanguage

English

Publisher

ieee

Conference_Titel

Condition Monitoring and Diagnosis (CMD), 2012 International Conference on

Conference_Location

Bali

Print_ISBN

978-1-4673-1019-2

Type

conf

DOI

10.1109/CMD.2012.6416407

Filename

6416407