Influencing Factors on the Dielectric Breakdown Strength in F-gas Free High-voltage Switchgear

Authors

  • S. Gossmann Siemens AG, Corporate Technology, Günther-Scharowsky-Str.1, 91058 Erlangen, Germany
  • B. Lutz Siemens AG, Energy Management, Nonnendammallee 104, 13629 Berlin
  • P. G. Nikolic Siemens AG, Corporate Technology, Günther-Scharowsky-Str.1, 91058 Erlangen, Germany

DOI:

https://doi.org/10.14311/ppt.2017.1.52

Keywords:

F-gas free switchgear, dielectric breakdown, clean air, surface roughness

Abstract

After being in the focus of sciences' and industry's research and development activities for many years, the investigation of possible SF6 gas-alternatives has been even more intensified after the revision of the European regulation on fluorinated gases in 2014. In this contribution the influencing factors on the dielectric breakdown of clean air are investigated for weak inhomogeneous field and gas pressures up to 10 bar. Modelling approaches and experimental data are compared.

References

UFCCC. Kyoto Protocol to the united nations framework convention on climate change. United Nations Framework Convention on Climate Change, 1997.

D. Gautschi and K. Pohlink. Ist SF6 in Hochspannungsschaltanlagen ersetzbar? - Neue Forschungsarbeiten bringen ermutigende Resultate. Bulletin Electrosuisse und Verband Schweizerischer Elektrizitätsunternehmen (VSE), 105(12):43–46, 2014.

B. Lutz et al. Alternativen zu SF6 - Aktueller Stand und klimaneutrale Auswege. In Fachtagung Hochspannungs-Schaltanlagen: Anwendungen, Betrieb und Erfahrungen, Darmstadt, 2016.

M. Beyer et al. Hochspannungstechnik. Springer-Verlag, 1986.

Y. Zhang et al. Study of Microscopic electric Field on contact Surface in Vacuum Interrupters based on Fractal Theory. ISDEIV, pages 29–32, 2016. doi:10.1109/DEIV.2016.7748667.

R. Li and Y. Qiu. A new multi-ridge model for electrode surface roughness effect in SF6. In Proc. 2nd Int. Conf. Properties and Applications of Dielectric Materials, pages 105–108, 1988. doi:10.1109/ICPADM.1988.38344.

H.G. Kosmahl. Analytic Evaluation of Field Emission Enhancement Factors for Ellipsoidal Cones and Elliptic Cross-Section Wedges. IEEE Transactions on Electron Devices, 38(6):1534–1537, 1991. doi:10.1109/16.81650.

C. J. Edgcombe and U. Valdré. Microscopy and computational modelling to elucidate the enhancement factor for field electron emitters. Journal of Microscopy,

(2):188–194, 2001. doi:10.1046/j.1365-2818.2001.00890.x.

D. L. Jaeger et al. Local electrostatic effects of surface structure on field emission. Journal of Applied Physics, 93(1):691–697, 2003. doi:10.1063/1.1526934.

V.G. Agapov and M.V. Sokolova. The Influence of Electrode Surface Microwhiskers on a Breakdown Voltage of a Pressurized Gas. In International High Voltage Symposium, pages 395–398, Zurich, 1975.

V.V. Zhirnov. On the Cold Emission Mechanism of Diamond Coated Tips. Journal de Physique, 6(5):107–112, 1996. doi:10.1051/jp4:1996517.

A. Galdetskiy. Field Enhancement in some Field Emission Structures and Ion Bombardment Suppression by Applied rf Voltage. In Technical Digest of IVMC, pages 598–601, 1997. doi:10.1109/IVMC.1997.627658.

N. Presser et al. Advanced insulation and switching concepts for next generation High Voltage Substations. In paper B-108, Cigré Paris, 2016.

M. Rossner and A. Hopf. Elektrische Festigkeit von alternativen Isoliergasen bei hohem Druck. PESS, page P01.6.

M. Rossner et al. Dielectric Strength of Alternative Insulation Gases at High Pressure in the Inhomogeneous Electric Field. In EIC, pages 369–374, 2015. doi:10.1109/ICACACT.2014.7223618.

R. Arora and W. Mosch. High Voltage and Electrical Insulation Engineering. Wiley-IEEE Press, 2011.

W. Mosch and W. Hauschild. Hochspannungsisolierungen mit Schwefelhexafluorid. VEB Technik Verlag, 1979.

J.M. Meek and J.D. Cragss. Electrical breakdown of gases. Oxford University Press, 1953.

N. Koshino et al. Partial discharge and breakdown characteristics of CO2-based gas mixtures as SF6 substitutes. In Gaseous Dielectrics X, chapter 5, pages 217–222. Springer US, 2004. doi:10.1007/978-1-4419-8979-6_30.

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Published

2017-10-15

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