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Recent Development of Two Alternative Gases to SF 6 for High Voltage Electrical Power Applications

Author

Listed:
  • John Owens

    (3M Company, Saint Paul, MN 55144-1000, USA)

  • Ang Xiao

    (3M Company, Saint Paul, MN 55144-1000, USA)

  • Jason Bonk

    (3M Company, Saint Paul, MN 55144-1000, USA)

  • Michael DeLorme

    (3M Company, Saint Paul, MN 55144-1000, USA)

  • Agnes Zhang

    (3M China Ltd., Shanghai 200336, China)

Abstract

For many years, SF 6 has been the preferred dielectric medium in electrical power applications, particularly in high voltage gas-insulated equipment. However, with the recognition that SF 6 has an extremely long atmospheric lifetime and very high global warming potential, governments have pursued emission reductions from gas-filled equipment. The electrical power industry has responded to this environmental challenge applying SF 6 -free technologies to an expanding range of applications which have traditionally used SF 6 , including gas-insulated switchgear, gas-insulated circuit breakers and gas-insulated lines or bus bars. Some of these SF 6 -free solutions include gas mixtures containing fluorinated compounds that have low climate impact, among them, a fluoronitrile and a fluoroketone developed as 3M™ Novec™ 4710 Insulating Gas and 3M™ Novec™ 5110 Insulating Gas, respectively. Both fluoronitrile and fluoroketone mixtures are successfully used in gas-insulated equipment currently operating on the grid where they reduce greenhouse gas emissions by more than 99% versus SF 6 . This paper reviews these leading components of alternative-gas mixtures with updates on the performance, safety and environmental profiles in electrical power applications.

Suggested Citation

  • John Owens & Ang Xiao & Jason Bonk & Michael DeLorme & Agnes Zhang, 2021. "Recent Development of Two Alternative Gases to SF 6 for High Voltage Electrical Power Applications," Energies, MDPI, vol. 14(16), pages 1-12, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5051-:d:616093
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    References listed on IDEAS

    as
    1. BILLEN, Pieter & MAES, Ben & LARRAÍN, Macarena & BRAET, Johan, 2020. "Replacing SF6 in electrical gas-insulated switchgear: technological alternatives and potential life cycle greenhouse gas savings in an EU-28 perspective," Working Papers 2020001, University of Antwerp, Faculty of Business and Economics.
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