Study on the leakage current characteristics of the salt contaminated insulators

Author

Wu, Tsong-Shiann ; Yen, Shih-Shong

Author_Institution

Nat. Yun-Lin Inst. of Technol., Taiwan

fYear

1990

fDate

28-31 Oct 1990

Firstpage

593

Lastpage

598

Abstract

Indications of different degrees of salt contamination were obtained experimentally in order to estimate the occurrence of flashover in insulators. These data are then used to find a method for estimating the best period and the most suitable data for recoating silicone grease. Preliminary experimental results are presented on the effective life of silicone grease coating for preventing salt contamination. The experimental results clearly indicate that, when voltage is applied to a contaminated insulator, the through leakage current is not low even for a slightly contaminated insulator, but its waveform is normal. If the value of contamination is increased, a pulsed current component appears in its current waveform

Keywords

flashover; insulators; protective coatings; silicones; effective life; flashover; leakage current characteristics; pulsed current component; salt contaminated insulators; silicone grease recoating; Dielectrics and electrical insulation; Flashover; Insulators; Leakage current; Partial discharges; Surface cleaning; Surface contamination; Surface discharges; Surface resistance; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1990. Annual Report., Conference on

Conference_Location

Pocono Manor, PA

Type

conf

DOI

10.1109/CEIDP.1990.201402

Filename

201402