DocumentCode
1327111
Title
Power frequency dependence of space charge behavior and partial discharge characteristics in SF6 gas
Author
Takahashi, T. ; Yamada, T. ; Hayakawa, N. ; Okubo, H.
Author_Institution
Dept. of Electr. Eng., Nagoya Univ., Japan
Volume
7
Issue
1
fYear
2000
fDate
2/1/2000 12:00:00 AM
Firstpage
152
Lastpage
160
Abstract
The partial discharge (PD) and breakdown (BD) characteristics in SF6 gas under commercial and higher frequency (∼600 Hz) ac voltage applications were investigated using high-speed electrical and optical measuring techniques with phase gate control method. Experimental results revealed that 400 Hz BD voltage at a certain gas pressure range was higher than that for 60 Hz and PD characteristics especially at the positive PD inception phase were much influenced by the applied power frequency. From these results, we clarified the dependence of space charge behavior on the applied power frequency and discussed the physical mechanism of PD and BD in SF6 gas with consideration of the space charge behavior generated by PD in the previous half cycle of ac voltage.
Keywords
SF6 insulation; high-speed optical techniques; high-speed techniques; partial discharge measurement; space charge; 400 Hz; 600 Hz; SF6; ac voltage applications; breakdown characteristics; gas pressure range; high-speed electrical measuring techniques; high-speed optical measuring techniques; partial discharge characteristics; phase gate control method; physical mechanism; positive PD inception phase; power frequency dependence; space charge behavior; Breakdown voltage; Electric variables measurement; Frequency dependence; Frequency measurement; High speed optical techniques; Optical control; Partial discharge measurement; Partial discharges; Phase measurement; Space charge;
fLanguage
English
Journal_Title
Dielectrics and Electrical Insulation, IEEE Transactions on
Publisher
ieee
ISSN
1070-9878
Type
jour
DOI
10.1109/94.839354
Filename
839354
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