Abstract
From the technical point of view, SF6 is an optimum gaseous insulation and switching medium and is, therefore, preferably used in medium- and high-voltage gas insulated systems. Nevertheless, a political demand has emerged for alternative solutions with improved environmental friendly properties, since SF6 is listed in the Kyoto Protocol (1997) as greenhouse gas, of which emissions need to be reduced. To figure out the best gas candidates for this purpose, the dielectric breakdown strengths of different potential gas mixtures are under investigation. During these dielectric breakdown studies with alternative fluorinated gas mixtures, an influence on the dielectric breakdown strength in subsequent test series in the same gas vessel was observed, despite evacuating the vessel. This influence is potentially caused by the attachment of fluoro-organic gas molecules to the surface of the test vessel and their release over time in subsequent investigations. To estimate and quantify this influence, AC breakdown test series were performed with fluoro-organic compounds (mixed with carrier gas) and natural-origin gases in consecutive test series in the same test vessel. Parameters such as the exposure time and type of the fluoro-organic gas were investigated as well as the influence of evacuation duration and gas flushing. Furthermore, additional typical material samples from gas-insulated systems were placed in the test gas vessel to provide additional attachment surfaces for the fluoro-organic gas molecules. The influence of the different material samples was taken into account individually. The results are presented and discussed with regard to the independence of measurements, and a recommendation on how to avoid interactions is given.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
IPCC Fifth Assessment Report: Climate Change 2013 (AR5)
Owens, J.G.: Greenhouse gas emission reductions through use of a sustainable alternative to SF6. In: 2016 Electrical Insulation Conference (EIC), Montréal, Canada, June 2016
Wiener, J., Hinrichsen, V., Goll, F., Juhre, K.: Dielectric properties of fluorine containing insulating gases for gas insulated systems. In: 20th International Symposium on High Voltage Engineering, Buenos Aires, Argentina, August 2017
Acknowledgments
The authors gratefully acknowledge support of this work by the German Federal Ministry for Economic Affairs and Energy (Funding Code 03ET7551).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Switzerland AG
About this paper
Cite this paper
Wiener, J., Hinrichsen, V., Goll, F., Juhre, K. (2020). Influence of Residual Fluoro-Organic Gas Compounds on the Electric Performance of SF6-Free Gas Insulated Systems in Consecutive Test Series. In: Németh, B. (eds) Proceedings of the 21st International Symposium on High Voltage Engineering. ISH 2019. Lecture Notes in Electrical Engineering, vol 599. Springer, Cham. https://doi.org/10.1007/978-3-030-31680-8_45
Download citation
DOI: https://doi.org/10.1007/978-3-030-31680-8_45
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-31679-2
Online ISBN: 978-3-030-31680-8
eBook Packages: EngineeringEngineering (R0)