DocumentCode :
782902
Title :
A Critical Region in Dielectric Liquids Under High Electric Stress
Author :
Chiu, C. ; Smith, C.W. ; Calderwood, J.H.
Author_Institution :
Department of Electronic and Electrical Engineering University of Salford, UK
Issue :
2
fYear :
1985
fDate :
4/1/1985 12:00:00 AM
Firstpage :
257
Lastpage :
260
Abstract :
Using several specially designed discharge chambers embodying point-point, point-plane and point-sphere electrode systems, and filled with dielectric liquid, a zone of low luminescent intensity was detected between the electrode corona and the point in the liquid at which the discharge channel originated. This dark zone is evidently the location of the mechanisms which are the critical precursors of breakdown in the liquid, and is referred to as the critical region. It is of a general ellipsoidal shape, and for the gap lengths of 3 to 7 mm employed, has major and minor axes of about 100 and 50 pm respectively.
Keywords :
Arm; Corona; Design engineering; Dielectric liquids; Electric breakdown; Electrodes; Fault location; Steel; Stress; Tungsten;
fLanguage :
English
Journal_Title :
Electrical Insulation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9367
Type :
jour
DOI :
10.1109/TEI.1985.348828
Filename :
4156759
Link To Document :
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