Abstract
Studying the characteristics of insulator surface contamination is the premise of studying the mechanism of insulator contamination flashover accident, and it is the inevitable need of anti-pollution work. In order to study the distribution of contaminated particles on the surface of insulators, natural contamination experiments of different insulators are carried out in this paper. The contaminated particles on the insulator surface were sampled and observed by scanning electron microscopy (SEM) through the establishment of experimental observation station. The image of the sample obtained after scanning is used to calculate the particle size of the contaminated particles by image processing method. The experimental results show: More than 90% of the contaminated particles on the surface of the insulator are less than 10 µm. Due to the anti-pollution double umbrella insulator, having two upper surfaces increases the probability of large particle deposition. Therefore, the proportion of large particle size particles is higher than that of ceramic and tempered glass insulators. The particle size distribution of the insulator surface obeys the lognormal distribution law, and its cumulative probability obeys the Boltzmann distribution law. The material and shape of the insulator do not affect this law.
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Dong, M., Qiang, G. (2020). Research on Pollution Accumulation Characteristics of Insulators in Natural Pollution Accumulation Experiments. In: Okada, H., Atluri, S. (eds) Computational and Experimental Simulations in Engineering. ICCES 2019. Mechanisms and Machine Science, vol 75. Springer, Cham. https://doi.org/10.1007/978-3-030-27053-7_102
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DOI: https://doi.org/10.1007/978-3-030-27053-7_102
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