Suppression mechanism of leakage current on RTV coated porcelain and silicone rubber insulators

Author

Kim, S.H. ; Cherney, E.A. ; Hackam, R.

Author_Institution

Dept. of Electr. Eng., Windsor Univ., Ont., Canada

Volume

6

Issue

4

fYear

1991

fDate

10/1/1991 12:00:00 AM

Firstpage

1549

Lastpage

1556

Abstract

The results of a study on the suppression of leakage current on room temperature vulcanizing (RTV) silicone rubber coated porcelain suspension insulators in a salt-fog chamber are reported. A comparative study of the performance of coatings on different parts of suspension insulators with RTV is reported. The results of attenuated total reflection (ATR) Fourier transform infrared (FTIR) spectroscopy are reported. On the basis of these results, a suppression mechanism for leakage current is suggested. A mechanism for the suppression of leakage current on RTV coated porcelain and silicone rubber insulators dealing with the temporary loss of hydrophobicity and its return is suggested

Keywords

insulators; leakage currents; organic insulating materials; polymers; rubber; Fourier transform infrared spectroscopy; RTV coated porcelain; attenuated total reflection; hydrophobicity; leakage current; room temperature vulcanising rubber; salt-fog chamber; silicone rubber insulators; Coatings; Fourier transforms; Infrared spectra; Insulation; Leakage current; Porcelain; Reflection; Rubber; Spectroscopy; Temperature;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.97691

Filename

97691