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Transformers Improvement and Environment Conservation by Using Synthetic Esters in Egypt

Author

Listed:
  • Ali A. Radwan

    (Electrical Engineering Department, Faculty of Engineering, Minia University, Minia 61517, Egypt
    Egyptian Electricity Holding Company, Middle Egypt DisCo., Minia 61111, Egypt)

  • Ahmed A. Zaki Diab

    (Electrical Engineering Department, Faculty of Engineering, Minia University, Minia 61517, Egypt)

  • Abo-Hashima M. Elsayed

    (Electrical Engineering Department, Faculty of Engineering, Minia University, Minia 61517, Egypt)

  • Yehya S. Mohamed

    (Electrical Engineering Department, Faculty of Engineering, Minia University, Minia 61517, Egypt)

  • Hassan Haes Alhelou

    (School of Electrical and Electronic Engineering, University College Dublin, Dublin 4, Ireland)

  • Pierluigi Siano

    (Department of Management and Innovation Systems, University of Salerno, 84084 Salerno, Italy)

Abstract

Distribution transformer (DT) is a crucial component in power systems as it exchanges energies between different voltage levels or between utility grid and DC microgrids. Nevertheless, the operation of an oil-immersed DT is limited by the thermal and electrical capabilities of the internal insulating liquid. This paper aims to raise the efficiency of distribution transformers and preserve the environment by using a biodegradable insulating liquid instead of the conventional mineral insulating oil (MIO). This work examines the Egyptian case, where a real distribution network located in middle Egypt is selected as a pilot project. Study and analysis of the status que of the insulation system inside DTs are done with the aid of fault-tree analysis. The deficiency of the insulation system is confirmed by conducting an electronic survey of 100 expert participants. The most appropriate solution among three different alternatives is confirmed using the weighting and ranking method. The best choice suitable for the selected area is the substitution of MIO by synthetic ester (SE). The technical and environmental advantages achieved by the presented solution are discussed. The feasibility studies have proven that the solution is positively acceptable in all aspects. An execution plan is established for the application of proposed solution on the selected Egyptian distribution network.

Suggested Citation

  • Ali A. Radwan & Ahmed A. Zaki Diab & Abo-Hashima M. Elsayed & Yehya S. Mohamed & Hassan Haes Alhelou & Pierluigi Siano, 2021. "Transformers Improvement and Environment Conservation by Using Synthetic Esters in Egypt," Energies, MDPI, vol. 14(7), pages 1-15, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:7:p:1992-:d:529889
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    References listed on IDEAS

    as
    1. Ali A. Radwan & Ahmed A. Zaki Diab & Abo-Hashima M. Elsayed & Hassan Haes Alhelou & Pierluigi Siano, 2020. "Active Distribution Network Modeling for Enhancing Sustainable Power System Performance; a Case Study in Egypt," Sustainability, MDPI, vol. 12(21), pages 1-22, October.
    2. Ahn, Byeong Seok, 2017. "Approximate weighting method for multiattribute decision problems with imprecise parameters," Omega, Elsevier, vol. 72(C), pages 87-95.
    3. Pawel Rozga & Abderrahmane Beroual & Piotr Przybylek & Maciej Jaroszewski & Konrad Strzelecki, 2020. "A Review on Synthetic Ester Liquids for Transformer Applications," Energies, MDPI, vol. 13(23), pages 1-33, December.
    4. Xiaobo Wang & Chao Tang & Bo Huang & Jian Hao & George Chen, 2018. "Review of Research Progress on the Electrical Properties and Modification of Mineral Insulating Oils Used in Power Transformers," Energies, MDPI, vol. 11(3), pages 1-31, February.
    5. Radek Doskočil & Branislav Lacko, 2019. "Root Cause Analysis in Post Project Phases as Application of Knowledge Management," Sustainability, MDPI, vol. 11(6), pages 1-15, March.
    6. Dominika Szcześniak & Piotr Przybylek, 2021. "Oxidation Stability of Natural Ester Modified by Means of Fullerene Nanoparticles," Energies, MDPI, vol. 14(2), pages 1-13, January.
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