Investigation on discharge development phenomena on D.C. high voltage insulator of two grooves

Author

Boudjella, A. ; Hadi, H. ; Yumoto, M. ; Sakai, T. ; Hosokawa, T.

Author_Institution

Inst. d´´Electrotech., Univ. des Sci. et de la Technol. d´´Oran, Algeria

Volume

2

fYear

2000

fDate

15-18 Oct. 2000

Firstpage

804

Abstract

The local discharge propagation direction towards flashover was investigated using an HV laboratory insulator of two grooves with the same resistance per unit channel length. The experimental results revealed that the presence of a metallic sphere in one channel influenced the discharge propagation direction. In addition to the gradient of potential and current in the pollution, we deduced that the electric field strength around the discharge tip has an effect on the discharge development direction.

Keywords

flashover; insulator contamination; insulator testing; DC high voltage insulator; HV laboratory insulator; discharge development phenomena; discharge tip; electric field strength; flashover; local discharge propagation direction; metallic sphere; polluted water channels; pollution; potential gradient; two grooves; Electric resistance; Electrodes; Flashover; Insulation; Laboratories; Pollution; Surface contamination; Surface discharges; Surface resistance; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on

Print_ISBN

0-7803-6413-9

Type

conf

DOI

10.1109/CEIDP.2000.884080

Filename

884080