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Use Performance and Management of Biodegradable Fluids as Transformer Insulation

Author

Listed:
  • Belén García

    (Electrical Engineering Department, Universidad Carlos III de Madrid, 28911 Madrid, Spain)

  • Alfredo Ortiz

    (Electrical and Energy Engineering Department, Universidad de Cantabria, 39005 Santander, Cantabria, Spain)

  • Carlos Renedo

    (Electrical and Energy Engineering Department, Universidad de Cantabria, 39005 Santander, Cantabria, Spain)

  • Diego Fernando García

    (School of Electrical and Electronic Engineering, Universidad del Valle, 760032 Cali, Valle del Cauca, Colombia)

  • Andrés Montero

    (Electrical Engineering Department, Universidad Carlos III de Madrid, 28911 Madrid, Spain)

Abstract

In recent years, the use of biodegradable fluids as liquid insulation for distribution and power transformers is spreading. The main biodegradable fluids used are natural and synthetic esters, although biodegradable hydrocarbons have been recently proposed. Biodegradable fluids have a much lower environmental impact than mineral oil, limiting the risk of soil contamination in leaks, which makes them a suitable solution for applications such as offshore transformers or railway transformers. Additionally, these fluids have a higher flash point than conventional mineral oils, which dramatically reduces the risk of fire and collateral damage derived from explosion and fire. Despite these advantageous factors, there are still some aspects that hinder the broadening of their use, such as the difference in thermal properties or the lack of accepted maintenance procedures for transformers that use them as liquid insulation. This paper presents the current status of biodegradable insulating fluids, analyzing some of their properties and discussing the aspects that are still to be investigated in order to make them a real alternative to petroleum-based fluids.

Suggested Citation

  • Belén García & Alfredo Ortiz & Carlos Renedo & Diego Fernando García & Andrés Montero, 2021. "Use Performance and Management of Biodegradable Fluids as Transformer Insulation," Energies, MDPI, vol. 14(19), pages 1-18, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:19:p:6357-:d:650127
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    References listed on IDEAS

    as
    1. Shen, Zijia & Wang, Feipeng & Wang, Zhiqing & Li, Jian, 2021. "A critical review of plant-based insulating fluids for transformer: 30-year development," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
    2. 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.
    3. L. Loiselle & U. Mohan Rao & I. Fofana, 2020. "Influence of Aging on Oil Degradation and Gassing Tendency for Mineral oil and Synthetic Ester under Low Energy Discharge Electrical Faults," Energies, MDPI, vol. 13(3), pages 1-12, January.
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    Cited by:

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    2. Teresa Nogueira & José Carvalho & José Magano, 2022. "Eco-Friendly Ester Fluid for Power Transformers versus Mineral Oil: Design Considerations," Energies, MDPI, vol. 15(15), pages 1-18, July.

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