Partial discharge and breakdown characteristics on needle/dielectrics composite electrode systems under pulse voltage

Author

Sakamoto, N. ; Kuninaka, Y. ; Ueno, H. ; Nakayama, H.

Author_Institution

Dept. of Electr. Eng., Himeji Inst. of Technol., Japan

fYear

2001

fDate

2001

Firstpage

175

Lastpage

178

Abstract

Studied the discharge characteristics on the composite electrode under a pulse voltage in N_2. The configuration is a needle-plane one, in which the needle is in contact with solid dielectrics, with a narrow gap. The configuration has a plurality of places of the local high field, namely a needle tip and another a triple junction. To examine a local corona behavior, we used ZnO for the needle electrode. Consequently, discharge voltages changed depending on the polarity of applied voltage and the kind of dielectric

Keywords

corona; electric breakdown; electrodes; nitrogen; partial discharges; N₂; ZnO; applied voltage polarity; breakdown characteristics; discharge characteristics; discharge voltages; local corona behavior; local high field; needle-plane configuration; needle/dielectrics composite electrode systems; partial discharge; pulse voltage; Breakdown voltage; Conductors; Corona; Dielectric breakdown; Dielectrics and electrical insulation; Electrodes; Glass; Needles; Partial discharges; Zinc oxide;

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.2001.973599

Filename

973599