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Type: Artigo
Title: Silicone insulators of power transmission lines with a variable inorganic load concentration: Electrical and physiochemical analyses
Author: Cardoso, Rodolfo
Balestro, Ana Claudia
Dellallibera, Adriano
Costa, Eduardo Coelho M.
Angelini, Joceli Maria G.
Abstract: Polymeric insulation is an increasing tendency in projects and maintenance of electrical networks for power distribution and transmission. Electrical power devices (e.g., insulators and surge arresters) developed by using polymeric insulation presents many advantages compared to the prior power components using ceramic insulation, such as: a better performance under high pollution environment; high hydrophobicity; high resistance to mechanical, electrical and chemical stresses. The practice with silicone insulators in polluted environments has shown that the ideal performance is directly related to insulator design and polymer formulation. One of the most common misunderstandings in the design of silicone compounds for insulators is the amount of inorganic load used in their formulation. This paper attempts to clarify how the variation of the inorganic load amount affects physicochemical characteristics of different silicone compounds. The physicochemical evaluation is performed from several measurements, such as: density, hardness, elongation, tensile strength. In addition, the evaluation of the physicochemical structure is carried out using infrared test and scanning electronic microscopy (SEM). The electrical analysis is performed from the electric tracking wheel and erosion test, in agreement with the recommendation of the International Electrotechnical Commission (IEC)
Subject: Isoladores e isolamentos elétricos
Country: Países Baixos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.measurement.2013.12.030
Date Issue: 2014
Appears in Collections:FEQ - Artigos e Outros Documentos

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