Abstract:A computational study was carried out in order to verify the assumption of reducing the magnitudes of electrical stresses generated in standard suspension-type disc insulators energized with high voltage alternating current (JIVAC), by including a semiconducting insert within their geometry. As a consequence, an improved performance of these insulators was expected during flashover tests in polluted conditions. Grading of stresses in the region adjacent to the pin of insulators is the factor responsible for su… Show more
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