Frequency characteristics of PD waveforms on polluted composite insulator surfaces

Author

Giriantari, I.A.D. ; Blackburn, T.R.

Author_Institution

Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Sydney, NSW, Australia

fYear

2001

fDate

2001

Firstpage

391

Lastpage

394

Abstract

Investigations of partial discharge characteristics of the surface leakage on polluted composite polymer insulators (SiR and EPDM) have been performed. This work is part of a program aimed at examining the potential for PD characteristics analysis to provide information about the condition of composite polymer insulators. The investigation reported examined the PD waveform characteristics at high frequencies. The use of high frequency measurements for on-line applications reduces electrical interference. This work was performed utilizing high frequency CTs to monitor PDs. It was found that there were significant variations in the PD waveform frequency spectrum, depending both on the PD magnitude and more importantly on the duration of the PD activity

Keywords

composite insulating materials; ethylene-propylene rubber; insulator contamination; insulator testing; partial discharge measurement; silicone rubber insulators; EPDM; PD activity duration; PD magnitude; PD waveform frequency spectrum; electrical interference reduction; frequency characteristics; high frequency current transformers; high frequency measurements; partial discharge characteristics; polluted composite insulator surfaces; polluted composite polymer insulators; silicone rubber; surface leakage; Frequency; Integrated circuit measurements; Interference; Partial discharges; Plastic insulation; Pollution measurement; Polymers; Surface contamination; Surface discharges; Surface waves;

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.2001.973683

Filename

973683