A study on the effect of UV radiations on silicone rubber insulators under polluted conditions using inclined plane tracking and erosion test

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI:10.1109/CATCON.2017.8280224

P. Ashitha, S. Ganga

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引用次数: 1

Abstract

In the recent years, several cases of outages of silicone rubber insulators due to contamination and pollution has been reported and is on rise. Several additives and filler materials like BaN, ATH, ZnO etc were used in the recent past to improve the hydrophobic properties of silicone rubber insulators and thereby improving its resistance to tracking and erosion. In this paper the effect of pollution on composite insulators has been studied using the Inclined Plane Tracking and Erosion Test as per IEC 60587, while superimposing UV radiations. Pollutants used are fly ash, soot, bagasse ash and cement, to mimic the surroundings found commonly near coal mines and power generating stations. IEC 60587 however does not refer to the effects of UV radiations while performing the Inclined Plane Tracking and Erosion Test. In this study however, UV radiations have been superimposed on the specimen to study the effects of the same. During the course of study it was observed that the presence of UV radiations in fact reduced the erosion on polluted composite insulation specimen, while the tracking was found to increase. SEM and XRD analysis was also performed after the completion of test.

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采用斜面跟踪和冲蚀试验研究了污染条件下紫外线辐射对硅橡胶绝缘子的影响

近年来，硅橡胶绝缘子因污染而停产的案例已经报道，并且呈上升趋势。近年来，人们使用了BaN、ATH、ZnO等添加剂和填充材料来改善硅橡胶绝缘子的疏水性能，从而提高其抗跟踪和抗侵蚀性能。本文采用IEC 60587斜面追踪和侵蚀试验，在叠加紫外线辐射的情况下，研究了污染对复合绝缘子的影响。使用的污染物是飞灰、烟灰、甘蔗渣灰和水泥，以模拟煤矿和发电厂附近常见的环境。然而，IEC 60587并不涉及在进行斜面跟踪和侵蚀测试时紫外线辐射的影响。然而，在本研究中，紫外线辐射已被叠加在样品上，以研究相同的影响。在研究过程中观察到，紫外线辐射的存在实际上减少了污染复合材料绝缘试样的侵蚀，但发现跟踪增加。实验完成后进行了SEM和XRD分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)

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