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Lessons to Learn from Post-Installation Pollution Levels Assessment of Some Distribution Insulators

Author

Listed:
  • Issouf Fofana

    (Research Chair on the Aging of Power Network Infrastructure (ViAHT), Université du Québec à Chicoutimi, 555 Boulevard de l’Université, Chicoutimi, QC G7H 2B1, Canada)

  • Janvier Sylvestre N’cho

    (Département Génie Électrique et Électronique, Institut National Polytechnique Houphouët Boigny (INP-HB), Yamoussoukro BP 1093, Cote D’Ivoire)

  • Amidou Betie

    (Département Génie Électrique et Électronique, Institut National Polytechnique Houphouët Boigny (INP-HB), Yamoussoukro BP 1093, Cote D’Ivoire)

  • Epiphane Hounton

    (Research Chair on the Aging of Power Network Infrastructure (ViAHT), Université du Québec à Chicoutimi, 555 Boulevard de l’Université, Chicoutimi, QC G7H 2B1, Canada)

  • Fethi Meghnefi

    (Research Chair on the Aging of Power Network Infrastructure (ViAHT), Université du Québec à Chicoutimi, 555 Boulevard de l’Université, Chicoutimi, QC G7H 2B1, Canada)

  • Kouba Marie Lucia Yapi

    (Research Chair on the Aging of Power Network Infrastructure (ViAHT), Université du Québec à Chicoutimi, 555 Boulevard de l’Université, Chicoutimi, QC G7H 2B1, Canada)

Abstract

Among the main causes of outdoor insulation failures is their poor specifications in terms of leakage distances. This happens when the selected criteria are unable to cope with all the stresses imposed by the changes in environmental pollutions. Therefore, it is important for utilities to fully understand the actual pollution characteristics of the service environment in which the insulators are operating. In this paper, the pollution severity and performance of some 13.2 kV ceramic insulators, sampled in different areas of a Canadian aluminum factory, are assessed. The investigations were performed taking into account the influence of air humidity. Various characteristics were investigated to assess the pollution levels of the insulators, such as equivalent salt deposit density (ESDD) and non-soluble deposit density (NSDD), surface resistance, and leakage current characteristics (density, 3rd harmonic amplitude, and phase). It was witnessed that the insulators, collected around the factory, were much more polluted in comparison to the initial expectation. The pollution level should not be considered static due to the environmental parameters’ dynamics. Lessons to learn: the reliability of an electrical grid is dependent on components whose own reliability is strongly affected by external factors, of which there is often a poor awareness. If care is not taken to re-evaluate the post-installation pollution levels of the insulators, the light may simply turn out!

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:16:p:4064-:d:395137
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    References listed on IDEAS

    as
    1. 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.
    2. Siyi Chen & Zhijin Zhang, 2020. "Dynamic Pollution Prediction Model of Insulators Based on Atmospheric Environmental Parameters," Energies, MDPI, vol. 13(12), pages 1-12, June.
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    Cited by:

    1. Mohamed Lamine Amrani & Slimane Bouazabia & Issouf Fofana & Fethi Meghnefi & Marouane Jabbari & Djazia Khelil & Amina Boudiaf, 2021. "Modelling Surface Electric Discharge Propagation on Polluted Insulators under AC Voltage," Energies, MDPI, vol. 14(20), pages 1-15, October.

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