DocumentCode
1075539
Title
DC Tree Associated with Space Charge in PMMA
Author
Kitani, I. ; Arii, K.
Author_Institution
Faculty of Engineering, Ehime Univeristy Matsuyama, Ehime Japan
Issue
3
fYear
1987
fDate
6/1/1987 12:00:00 AM
Firstpage
303
Lastpage
307
Abstract
DC tree initiation and propagation and treeing phenomena in PMMA under ramped voltages have been investigated by a optical method using a photomultiplier and a close-up camera. The Weibull plot of the initial tree inception voltage for a positive point had a knee at about 35 kV, above which the slope was lower, while the plot for a negative point was linear. The succeeding negative streamer originated from the tips or stem of tree channel as well as from the point cathode, while the succeeding positive streamers originate from only the point anode.
Keywords
Cameras; Dielectric liquids; Electric breakdown; Electrodes; Optical propagation; Photomultipliers; Space charge; Switches; Testing; Voltage;
fLanguage
English
Journal_Title
Electrical Insulation, IEEE Transactions on
Publisher
ieee
ISSN
0018-9367
Type
jour
DOI
10.1109/TEI.1987.298994
Filename
4081412
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