Partial discharge degradation and breakdown studies in polypropylene films

Author

Thomas, Benny ; 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

521

Abstract

Internal partial discharge characteristics are investigated on impregnated polypropylene films containing artificial cavity of well-defined dimensions, immersed in oil. Electrical breakdown studies are carried out at step-wise rising stress to evaluate constants of inverse power law model. Partial discharge pulse distribution patterns are acquired using PC interfaced multichannel analyser and statistical analysis of the discharge pulse spectrum is done by using 3-parameter Weibull distribution function. The results are compared with that for unimpregnated samples in air

Keywords

Weibull distribution; composite insulating materials; computerised instrumentation; organic insulating materials; partial discharges; polymer films; pulse height analysers; statistical analysis; 3-parameter Weibull distribution function; PC interfaced multichannel analyser; artificial cavity; breakdown studies; impregnated polypropylene films; inverse power law model; partial discharge degradation; pulse distribution patterns; statistical analysis; step-wise rising stress; unimpregnated samples; Degradation; Electric breakdown; Electrodes; Partial discharge measurement; Partial discharges; Pattern analysis; Petroleum; Pulse amplifiers; Stress; 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.1996.549397

Filename

549397