Characterisation of partial discharge pulses in artificial voids in polypropylene films used in capacitors

Author

Ramachandra, B. ; Nema, R.S.

Author_Institution

Dept. of High Voltage Eng., Indian Inst. of Sci., Bangalore, India

Volume

2

fYear

1996

fDate

16-19 Jun 1996

Firstpage

517

Abstract

Partial discharges in voids may cause deterioration of solid insulating materials. They often start in voids enclosed in insulation and or at the interface defects. A method of measuring fast discharge pulses with rise times below 1 ns is reported. Characterisation of partial discharge pulses in artificial voids in polypropylene films at atmospheric pressure is analysed that incorporates inception voltage, apparent and real charge, drift velocity and mobility of electrons

Keywords

electric breakdown; insulation testing; partial discharges; polymer films; power capacitors; voids (solid); PD pulse characterisation; apparent charge; artificial voids; capacitors; drift velocity; electron mobility; fast discharge pulses; inception voltage; insulation breakdown testing; interface defects; partial discharge pulses; polypropylene films; real charge; solid insulating materials; Atmospheric measurements; Dielectrics; Electrodes; Electron mobility; Insulation; Partial discharges; Pulse measurements; Resistors; Solids; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on

Conference_Location

Montreal, Que.

ISSN

1089-084X

Print_ISBN

0-7803-3531-7

Type

conf

DOI

10.1109/ELINSL.1996.549396

Filename

549396