DocumentCode
3384522
Title
Interpretation of the physical mechanisms in the breakdown of long gaps in transformer oil
Author
Trinh, N.G. ; Saker, A.
Author_Institution
Inst. de Recherche, Hydro-Quebec, Varennes, Que., Canada
fYear
1996
fDate
15-19 Jul 1996
Firstpage
287
Lastpage
291
Abstract
The breakdown of nonuniform field gaps in transformer oil was investigated under AC voltages. It was observed to occur either directly following the initiation of a discharge (direct mode) or after a succession of suppressions and reignitions of the discharge over several consecutive half-cycles of the applied voltage (delayed mode). The paper presents time-resolved observations of the discharge and offers an interpretation of its progression mechanism leading to breakdown of the gap
Keywords
electric breakdown; transformer oil; AC voltage; breakdown; delayed mode; direct mode; discharge; nonuniform field gap; time-resolved diagnostics; transformer oil; Breakdown voltage; Delay; Electric breakdown; Electrodes; Fault location; Oil insulation; Petroleum; Power transformer insulation; Power transformers; Testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Conduction and Breakdown in Dielectric Liquids, 1996, ICDL '96., 12th International Conference on
Conference_Location
Roma
Print_ISBN
0-7803-3560-0
Type
conf
DOI
10.1109/ICDL.1996.565475
Filename
565475
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