Influence of the non-uniformity of pollution distribution on the electrical behavior of insulators

R. García, R. Bosignoli, E. Gomes
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引用次数: 6

Abstract

Presents an analysis of the influence of pollution distribution on insulator surfaces, considering service conditions. The main subjects considered are the utilization of equivalent salt deposit density (ESDD) to measure site severities and the simulation of natural pollution distribution by artificial pollution test methods to represent it in the laboratory. Results show that special care must be taken when average SDD values are considered. The conclusions lead to a better representation of service conditions when the electrical behavior of polluted insulators is evaluated by artificial pollution methods at laboratories, regarding the influence of pollution concentration.<>
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污染分布不均匀性对绝缘子电气性能的影响
在考虑使用条件下,分析了污染分布对绝缘子表面的影响。主要考虑的问题是利用等效盐沉积密度(ESDD)来测量场地的严重程度,以及通过人工污染测试方法模拟自然污染的分布,在实验室中表征。结果表明,在考虑平均SDD值时必须特别注意。在实验室采用人工污染方法评估受污染绝缘子的电气性能时,考虑到污染浓度的影响,这些结论可以更好地代表使用条件
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