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An Eco-Friendly Gas Insulated Transformer Design

Author

Listed:
  • Ezgi Guney

    (Department of Electrical and Energy, Vocational High School, Sinop University, Sinop 57000, Turkey)

  • Okan Ozgonenel

    (Electrical and Electronic Engineering, Faculty of Engineering, Ondokuz Mayis University, Atakum 55139, Turkey)

Abstract

Electricity companies around the world are constantly seeking ways to provide electricity more safely and efficiently while reducing the negative impact on the environment. Mineral oils have been the most popular transformer insulation, having excellent electrical insulating properties, but have many problems such as high flammability, significant cleaning problems, and are toxic to fish and wildlife. This paper presents an alternative approach to mineral oil: a transformer design that is clean and provides better performance and environmental benefits. A 50 kVA, 34.5/0.4 kV gas insulated distribution transformer was designed and evaluated using the COMSOL Multiphysics environment. R410A was used as insulation material. R410A is a near-azeotropic mixture of difluoromethane (CH2F2, called R-32) and pentafluoro ethane (C2HF5, called R-125), which is used as a refrigerant in air conditioning applications. It has excellent properties including environmentally friendly, no-ozone depletion, low greenhouse effect, non-explosive and non-flammable, First, the breakdown voltage of the selected gas was determined. The electrostatic and thermal properties of the R410A gas insulated transformer were investigated in the COMSOL environment. The simulation results for the performance of oil and SF6 gas insulated transformers using the same model were compared. The gas-insulated transformer is believed to have equivalent performance and is an environmentally friendly alternative to current oil-based transformers.

Suggested Citation

  • Ezgi Guney & Okan Ozgonenel, 2021. "An Eco-Friendly Gas Insulated Transformer Design," Energies, MDPI, vol. 14(12), pages 1-18, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:12:p:3698-:d:579031
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    References listed on IDEAS

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    1. Abderrahmane Beroual & Abderrahmane (Manu) Haddad, 2017. "Recent Advances in the Quest for a New Insulation Gas with a Low Impact on the Environment to Replace Sulfur Hexafluoride (SF 6 ) Gas in High-Voltage Power Network Applications," Energies, MDPI, vol. 10(8), pages 1-20, August.
    2. Panwar, N.L. & Kaushik, S.C. & Kothari, Surendra, 2011. "Role of renewable energy sources in environmental protection: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(3), pages 1513-1524, April.
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