Influence of relative humidity on surface charge decay on epoxy resin insulators

Author

Lutz, B. ; Kindersberger, J.

Author_Institution

Lehrstuhl fur Hochspannungs- und Anlagentechnik, Tech. Univ. Munchen, Munich, Germany

fYear

2009

fDate

19-23 July 2009

Firstpage

883

Lastpage

886

Abstract

The influence of relative air humidity on the surface charge decay on epoxy resin insulators initially charged by DC corona and on their surface resistivity is investigated at room temperature. It has been observed, that surface resistivity of the epoxy resin insulators decreases significantly at higher relative humidity. Thus, at higher relative humidity surface charge decay is dominated by electric conduction along the insulator surface. This effect has been verified by both, measurement and simulation of the surface charge decay.

Keywords

conducting polymers; electrical resistivity; humidity; insulating materials; surface charging; surface resistance; DC corona; electric conduction; epoxy resin insulators; relative air humidity; surface charge decay; surface resistivity; Charge measurement; Conductivity; Corona; Current measurement; Dielectrics and electrical insulation; Epoxy resins; Humidity; Metal-insulator structures; Surface charging; Temperature; solid insulator; surface charge decay; surface resistivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2009. ICPADM 2009. IEEE 9th International Conference on the

Conference_Location

Harbin

Print_ISBN

978-1-4244-4367-3

Electronic_ISBN

978-1-4244-4368-0

Type

conf

DOI

10.1109/ICPADM.2009.5252237

Filename

5252237