Design parameters of weathersheds that affect the ageing of polymer insulators in salt-fog

Author

El-Hag, A.H. ; Jayaram, S. ; Cherney, E.A.

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

Volume

1

fYear

2001

fDate

15-19 July 2001

Firstpage

530

Abstract

The paper presents the results of a study in which the third harmonic frequency component of leakage current is used to study various design parameters of weathersheds that affect the ageing of polymer insulators in salt-fog. Salt-fog was applied to model insulators for 120 hours at two different conductivity levels, i.e. 1000 /spl mu/S/cm and 2000 /spl mu/S/cm as an aging test. The effect of the number of sheds and shed inclination angle on the aging performance of polymer insulators was studied. Model insulators having 2-sheds showed better performance than 4-sheds. Also, the shed inclination angle improved the performance of the insulators in salt-fog.

Keywords

ageing; electric breakdown; insulator testing; leakage currents; polymer insulators; 1000 muS/cm; 120 hour; 2000 muS/cm; aging performance; conductivity levels; insulator breakdown testing; leakage current third harmonic frequency component; polymer insulators; salt-fog ageing tests; shed inclination angle; weathershed design parameters; Aging; Ceramics; Dielectrics and electrical insulation; Flashover; Leakage current; Plastic insulation; Pollution measurement; Polymers; Protection; Ribs;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society Summer Meeting, 2001

Conference_Location

Vancouver, BC, Canada

Print_ISBN

0-7803-7173-9

Type

conf

DOI

10.1109/PESS.2001.970084

Filename

970084