학술논문
In-service diagnostic of polymeric insulators exposed to severe contamination
Document Type
Conference
Source
2007 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena Electrical Insulation and Dielectric Phenomena, 2007. CEIDP 2007. Annual Report - Conference on. :376-379 Oct, 2007
Subject
Language
ISSN
0084-9162
Abstract
In Mexico since 1995, polymeric insulators have been used in transmission lines exposed to severe contamination. Insulators from different manufacturers have been installed; however, some of them have failed during their early operation years. Consequently, since 2003, in-service diagnostic has been periodically carried out to identify high risk insulators, by using the visual corona and electric field measurement techniques. In this paper, the most important results obtained from different inspections performed in-service to polymeric insulators on Mexican transmission lines are presented. These results show that the visual corona and electric field measurement techniques can be used to identify high risk polymeric insulators prior to failure.