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Mechanism of Saline Deposition and Surface Flashover on High-Voltage Insulators near Shoreline: Mathematical Models and Experimental Validations

Author

Listed:
  • Muhammad Majid Hussain

    (Faculty of Computing, Engineering and Science, University of South Wales, Treforest, Cardiff CF37 1DL, UK)

  • Muhammad Akmal Chaudhary

    (Department of Electrical and Computer Engineering, Ajman University, Ajman P.O. Box 346, UAE)

  • Abdul Razaq

    (School of Design and Informatics, Abertay University, Dundee DD1 1HG, UK)

Abstract

This paper deals with sea salt transportation and deposition mechanisms and discusses the serious issue of degradation of outdoor insulators resulting from various environmental stresses and severe saline contaminant accumulation near the shoreline. The deterioration rate of outdoor insulators near the shoreline depends on the concentration of saline in the atmosphere, the influence of wind speed on the production of saline water droplets, moisture diffusion and saline penetration on the insulator surface. This paper consists of three parts: first a model of saline transportation and deposition, as well as saline penetration and moisture diffusion on outdoor insulators, is presented; second, dry-band initiation and formation modelling and characterization under various types of contamination distribution are proposed; finally, modelling of dry-band arcing validated by experimental investigation was carried out. The tests were performed on a rectangular surface of silicone rubber specimens (12 cm × 4 cm × 8 cm). The visualization of the dry-band formation and arcing was performed by an infrared camera. The experimental results show that the surface strength and arc length mainly depend upon the leakage distance and contamination distribution. Therefore, the model can be used to investigate insulator flashover near coastal areas and for mitigating saline flashover incidents.

Suggested Citation

  • Muhammad Majid Hussain & Muhammad Akmal Chaudhary & Abdul Razaq, 2019. "Mechanism of Saline Deposition and Surface Flashover on High-Voltage Insulators near Shoreline: Mathematical Models and Experimental Validations," Energies, MDPI, vol. 12(19), pages 1-20, September.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:19:p:3685-:d:271051
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    References listed on IDEAS

    as
    1. Muhammad Majid Hussain & Shahab Farokhi & Scott G. McMeekin & Masoud Farzaneh, 2017. "Risk Assessment of Failure of Outdoor High Voltage Polluted Insulators under Combined Stresses Near Shoreline," Energies, MDPI, vol. 10(10), pages 1-13, October.
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    Cited by:

    1. Yifan Liao & Qiao Wang & Lin Yang & Zhiqiang Kuang & Yanpeng Hao & Chuyan Zhang, 2021. "Discharge Behavior and Morphological Characteristics of Suspended Water-Drop on Shed Edge during Rain Flashover of Polluted Large-Diameter Post Insulator," Energies, MDPI, vol. 14(6), pages 1-14, March.
    2. Issouf Fofana & Janvier Sylvestre N’cho & Amidou Betie & Epiphane Hounton & Fethi Meghnefi & Kouba Marie Lucia Yapi, 2020. "Lessons to Learn from Post-Installation Pollution Levels Assessment of Some Distribution Insulators," Energies, MDPI, vol. 13(16), pages 1-11, August.
    3. Jiahong He & Kang He & Bingtuan Gao, 2019. "Modeling of Dry Band Formation and Arcing Processes on the Polluted Composite Insulator Surface," Energies, MDPI, vol. 12(20), pages 1-20, October.
    4. Arshad & Jawad Ahmad & Ahsen Tahir & Brian G. Stewart & Azam Nekahi, 2020. "Forecasting Flashover Parameters of Polymeric Insulators under Contaminated Conditions Using the Machine Learning Technique," Energies, MDPI, vol. 13(15), pages 1-16, July.
    5. Haitao Yang & Zhensheng Wu & Weinan Dong & Junpeng Dang & Hao Ren, 2021. "Analysis of the Influence of Silicone Rubber Aging on the Transmission Parameters of Terahertz Waves," Energies, MDPI, vol. 14(14), pages 1-17, July.

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