Effects of frequency and applied voltage on electrical treeing discharges

Author

Suwarno ; Suzioki, Y. ; Mizutani, T. ; Uchida, K.

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Japan

fYear

1995

fDate

10-13 Jul 1995

Firstpage

366

Lastpage

370

Abstract

We have investigated, for low density polyethylene, the effects of frequency and applied voltage on electrical treeing discharges. Partial discharge (PD) number increased with frequency. At a constant frequency, PD number and average PD intensity increased linearly with applied voltage for applied voltage above a certain value. In the case of triangular applied voltage, average charge per cycle is the same for both positive and negative PDs. These were explained well by using the two-threshold model

Keywords

electric breakdown; partial discharges; polyethylene insulation; trees (electrical); LDPE; applied voltage dependence; average charge per cycle; constant frequency; discharge intensity; electrical treeing discharges; frequency dependence; low density polyethylene; negative partial discharges; partial discharge number; positive partial discharges; triangular applied voltage; two-threshold model; Capacitors; Degradation; Dielectrics and electrical insulation; Equivalent circuits; Frequency; Partial discharges; Polymers; Pulse circuits; Threshold voltage; Trees - insulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Solid Dielectrics, 1995. ICSD'95., Proceedings of the 1995 IEEE 5th International Conference on

Conference_Location

Leicester

Print_ISBN

0-7803-2040-9

Type

conf

DOI

10.1109/ICSD.1995.523010

Filename

523010