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Review

Recent Development of Two Alternative Gases to SF6 for High Voltage Electrical Power Applications

1
3M Company, Saint Paul, MN 55144-1000, USA
2
3M China Ltd., Shanghai 200336, China
*
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in 2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE), Beijing, China, 6–10 September 2020; pp. 1–4.
Academic Editors: Pawel Rozga and Issouf Fofana
Energies 2021, 14(16), 5051; https://doi.org/10.3390/en14165051
Received: 24 June 2021 / Revised: 3 August 2021 / Accepted: 12 August 2021 / Published: 17 August 2021
For many years, SF6 has been the preferred dielectric medium in electrical power applications, particularly in high voltage gas-insulated equipment. However, with the recognition that SF6 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 SF6-free technologies to an expanding range of applications which have traditionally used SF6, including gas-insulated switchgear, gas-insulated circuit breakers and gas-insulated lines or bus bars. Some of these SF6-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 SF6. This paper reviews these leading components of alternative-gas mixtures with updates on the performance, safety and environmental profiles in electrical power applications. View Full-Text
Keywords: sulfur hexafluoride; SF6; insulation; dielectric medium; SF6-free; SF6-alternative; fluoroketone; fluoronitrile sulfur hexafluoride; SF6; insulation; dielectric medium; SF6-free; SF6-alternative; fluoroketone; fluoronitrile
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MDPI and ACS Style

Owens, J.; Xiao, A.; Bonk, J.; DeLorme, M.; Zhang, A. Recent Development of Two Alternative Gases to SF6 for High Voltage Electrical Power Applications. Energies 2021, 14, 5051. https://doi.org/10.3390/en14165051

AMA Style

Owens J, Xiao A, Bonk J, DeLorme M, Zhang A. Recent Development of Two Alternative Gases to SF6 for High Voltage Electrical Power Applications. Energies. 2021; 14(16):5051. https://doi.org/10.3390/en14165051

Chicago/Turabian Style

Owens, John, Ang Xiao, Jason Bonk, Michael DeLorme, and Agnes Zhang. 2021. "Recent Development of Two Alternative Gases to SF6 for High Voltage Electrical Power Applications" Energies 14, no. 16: 5051. https://doi.org/10.3390/en14165051

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