DocumentCode
2007785
Title
Electrical charges generated by a flow of oil in power transformers
Author
Touchard, G. ; Grimaud, P.O. ; Romat, H. ; Moreau, O.
Author_Institution
Lab. de Physique et Mecanique des Fluides, CNRS, Poitiers, France
fYear
1993
fDate
19-23 Jul 1993
Firstpage
497
Lastpage
503
Abstract
An attempt has been made to gain a better understanding of the formation of electrical charge appearing within oil circulating inside a rectangular pressboard channel. Experiments confirm that the charge accumulated on the surface of the pressboard does not limit the process of charge generation. It is concluded that the roughness of the surface and its nonhomogeneity are factors that must be taken into account in order to explain the high-energy level of the discharges occurring in power transformers
Keywords
transformer oil; charge generation; discharges; electrical charges; oil flow; power transformers; rectangular pressboard channel; surface roughness; Coatings; Contacts; Ducts; Electrical equipment industry; Geometry; Industrial accidents; Petroleum; Power generation; Power transformers; Space charge;
fLanguage
English
Publisher
ieee
Conference_Titel
Conduction and Breakdown in Dielectric Liquids,1993., ICDL '93., IEEE 11th International Conference on
Conference_Location
Baden-Dattwil
Print_ISBN
0-7803-0791-7
Type
conf
DOI
10.1109/ICDL.1993.593993
Filename
593993
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