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AC Performance of HTV-SR and Its Hybrids Loaded with Nano-/Micro-Silica/ATH Fillers

  • Research Article-Electrical Engineering
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Abstract

In the present study, long-term multi-stress aging performance of silicone-based polymeric insulators was investigated for possible use on high-voltage alternating current transmission lines in Pakistan. One neat sample of high-temperature-vulcanized silicone rubber and four silica and alumina trihydrate filled hybrid composites were studied for 5000 h under accelerated multi-stress aging simulating environment of Karachi. Several measurements and diagnostic techniques such as hydrophobicity assessment, leakage current measurement, scanning electron microscopy, Fourier transform infrared spectroscopy, tensile testing and shore-A hardness were deployed to better establish a reliable comparison of resistance-to-aging among the investigated samples. Through extensive analysis of all measured data, it was established that among the investigated five samples, the specimen representing silicone hybrid composite containing 2% nano-silica and 20% micro-silica showed the most superior performance. Expanding grid in Pakistan which has been facing several challenges in terms of pollution-related flashovers maybe made more reliable through use of silicone rubber hybrid insulators.

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Authors and Affiliations

  1. Faculty of Electrical Engineering, GIK Institute of Engineering Sciences and Technology, Topi, 23640, Pakistan

    Farhan Ahmad, Muhammad Akbar & Rahmat Ullah

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  1. Farhan Ahmad
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  2. Muhammad Akbar
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  3. Rahmat Ullah
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Correspondence to Rahmat Ullah.

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Ahmad, F., Akbar, M. & Ullah, R. AC Performance of HTV-SR and Its Hybrids Loaded with Nano-/Micro-Silica/ATH Fillers. Arab J Sci Eng 46, 1103–1114 (2021). https://doi.org/10.1007/s13369-020-04938-0

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  • DOI: https://doi.org/10.1007/s13369-020-04938-0

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