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Published Article / I07/2006/I-016 ENY-ARTICLE-2008-207

Probes for spot measurement of surface conductivity on polluted insulators

Chrzan, K L (Wroclaw University of Technology, Wroclaw, Poland) ; Farzaneh, M (NSERC / Hydro-Quebec / UQAC Industrial Chair on Atmospheric Icing of Power Network Equipment (CIGELE) and Canada Research Chair on Engineering of Power Network Atmospheric Icing (INGIVRE) at Université du Québec à Chicoutimi, Canada)

2005-07-31

Abstract: The surface conductivity of insulators in the field is usually very non-uniformly distributed. In this case the integral surface conductivity is not an appropriate parameter of pollution severity. A better evaluation can be achieved on the basis of local conductivity measurements by means of special probes, e.g. the rod probe or tissue strip probe. In this paper the form factors of different probes are given, and the influence of wet-contamination area, the meniscus and the pollution layer thickness on the measured value of surface conductivity are shown. It was found that the surface conductivity on polluted silicone rubber measured by a tissue strip probe is proportional to the Equivalent Contamination Deposit Density ECDD.

Keyword(s): surface conductivity ; equivalent salt deposit density ; pollution
Note: Proceedings of the XIVth International Symposium on High Voltage Engineering. ISH 2005 , Beijing, China, August 25-29, 2005 / Ed. Guan Zhicheng. Bejing : Tsinghua University Press, [2005].


Fulltext : http://zet10.ipee.pwr.wroc.pl/record/261/files/

Cited by: try citation search for ENY-ARTICLE-2008-207; I07/2006/I-016

Rekord stworzony 2008-11-11, ostatnia modyfikacja 2008-11-11

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