Measurement of solid dielectric surface temperature increment arising from partial discharge activity

Author

Las, Tadeusz

Author_Institution

Electrotech. Inst., Warsaw, Poland

fYear

2000

fDate

2000

Firstpage

324

Lastpage

327

Abstract

Measurement of the temperature increment of the dielectric surface caused by partial discharge activity was carried out by means of non-invasive measuring system which takes an amount of infrared radiation energy emitted by the surface. The experiment was run in a point-dielectric-plane electrode arrangement with AC voltage up to 22 kV and frequency range from 200 to 1200 Hz. Samples of Epoxy resin with an alumina filler (EP), Polytetrafluoroethylene (PTFE), and Polyethylene (PE) were investigated. It was found that temperature increment may be so high that thermal degradation of the dielectric is possible

Keywords

organic insulating materials; partial discharges; spectral methods of temperature measurement; 200 to 1200 Hz; 22 kV; alumina filler; epoxy resin; infrared radiation; noninvasive measurement; partial discharge; point-plane electrode system; polyethylene; polytetrafluoroethylene; solid dielectric; surface temperature; thermal degradation; Dielectric measurements; Electrodes; Energy measurement; Frequency; Partial discharge measurement; Partial discharges; Solids; Surface discharges; Temperature measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2000. Conference Record of the 2000 IEEE International Symposium on

Conference_Location

Anaheim, CA

ISSN

1089-084X

Print_ISBN

0-7803-5931-3

Type

conf

DOI

10.1109/ELINSL.2000.845518

Filename

845518