Inception and development prebreakdown cavities in water

Author

Kukhta, V.R. ; Lopatin, V.V.

Author_Institution

Tomsk Polytech. Univ., Russia

fYear

1999

fDate

1999

Firstpage

273

Lastpage

276

Abstract

The shadow observation results of slow streamer inception and development in deionized water are presented. The propagation features of two different types of positive slow streamers are observed. The first is usual for water and hydrocarbon liquids. The other starts from near the electrode and can transform into a tree-like streamer due to a larger gas content which originates from the electrode. Evidence for the gaseous nature of the slow streamers is presented. Comparison of the observation data with Rayleigh and Watson models suggests the involvement of microbubbles in the first type of positive and the negative streamers

Keywords

cavitation; discharges (electric); electric breakdown; trees (electrical); water; Rayleigh model; Watson model; deionized water; gas content; microbubbles; negative streamers; optical shadowgraph system; positive slow streamer propagation; prebreakdown cavities; shadow observation; slow streamer inception; tree-like streamer; water; Cathodes; Current measurement; Electrodes; Hydrocarbons; Liquids; Needles; Optical propagation; Plasmas; Steel; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids, 1999. (ICDL '99) Proceedings of the 1999 IEEE 13th International Conference on

Conference_Location

Nara

Print_ISBN

0-7803-4759-5

Type

conf

DOI

10.1109/ICDL.1999.798924

Filename

798924