Mechanism of surface flashover of electrolyte water channels. I

Author

Hadi, Hocine ; Boudjella, Aissa ; Yumoto, Motoshige ; Sakai, Tadashi ; Hosokawa, Tatsuo

Author_Institution

Faculte de Genie Electrique, Univ. des Sci. et de la Technologie, Oran, Algeria

fYear

2001

fDate

2001

Firstpage

351

Lastpage

354

Abstract

This paper deals with the propagation of the local discharge on liquid under DC high voltage. The tests have been carried out on different resistivity using Obenaus and two grooves model. The electrical parameters of flashover, the critical magnitude of gradient of potential and current in the pollution are compared for both models. The results show almost no difference on their magnitudes. The high gradient is associated with low current and vice versa. The authors comment on these results and suggest an explanation

Keywords

flashover; insulator contamination; insulator testing; DC high voltage; Obenaus model; current gradient; electrical parameters; electrolyte water channels; local discharge propagation; polluted insulator breakdown testing; potential gradient; resistivity; surface flashover mechanism; two grooves model; Conductivity; Dielectric liquids; Electrodes; Flashover; Insulation; Low voltage; Pollution; Surface discharges; Surface resistance; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on

Conference_Location

Himeji

Print_ISBN

4-88686-053-2

Type

conf

DOI

10.1109/ISEIM.2001.973669

Filename

973669