English
This article presents a technical approach to asset management in transmission lines, focusing on the evaluation of the longevity of toughened glass insulators withdrawn from service after more than 40 years of operation in humid tropical environments in Brazil.
This publication complements several previous studies conducted in non-tropical regions. As is well known, tropical regions, characterized by high humidity and elevated temperatures, are particularly aggressive toward materials, especially when these are subjected to high electrical stress.
All insulators tested had been in service for more than 40. Among them 75% were installed in 500kV systems.
The document also includes results from analysis reports on porcelain and composite insulators.
Due to the specific characteristics of Brazil’s transmission network, the document focuses on the SIN (National Interconnected System), which is the system adopted throughout the country.
To read the paper click on this link. (https://www.sediver.com/wp-content/uploads/19325-Asset-Management.pdf)
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