Influence of Field Spacer Geometry on the Performance of a High Voltage Coaxial Type Transmission Line with Solid Dielectric Spacer in Vacuum

  • A. P. Anagha Electrical Engineering Department, National Institute of Technology, India
  • K. Sunitha Electrical Engineering Department, National Institute of Technology, India

Abstract

With the development of more powerful high power electromagnetic sources, the transmission of high voltage power particularly between pulsed power systems to huge power rated microwave sources in absence of electrical breakdown and pulse distortion has begun to become a vital issue. A high voltage coaxial type transmission line with 500 kV peak voltage in vacuum is proposed. A novel proposal of configuration bearing a positive angle of 45o with socket-type filed shaper is being discussed in this paper in a manner to improve surface flashover properties and also to decrease the distortion seen in the pulse shape. This type of transmission line provides high capability of hold off voltage. The electric field distribution of the coaxial geometry with different field shaper configurations and different spacer parameters are also investigated using COMSOL software.

Keywords: Field shaper, electromagnetics, surface flashover, triple junction, spacer, dielectrics

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References

S. D. Korovin, V. V. Rostov, S. D. Polevin, I. V. Pegel, E. Schamiloglu, M. I. Fuks, R. J. Barker, “Pulsed power-driven high-power microwave sources”, Proceedings of the IEEE, Vol. 92, No. 7, pp. 1082-1095, 2004 DOI: https://doi.org/10.1109/JPROC.2004.829020

R. Kichouliya, M. Joy Thomas, “Interaction of high power electromagnetic pulses with power cables and electronic systems”, IEEE International Symposium on Electromagnetic Compatibility, Canada, July 25-29, 2016 DOI: https://doi.org/10.1109/ISEMC.2016.7571636

J. Choi, Y. Kim, J. So, “Design of low distortion high voltage coaxial-type transmission line for quasi-square wave nano-pulse with several hundred kilovolts in vacuum”, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 22, No.4, pp. 1809 – 1814, 2015 DOI: https://doi.org/10.1109/TDEI.2015.004930

S. F. Mahmoud, Electromagnetic waveguides: theory and applications, IET, 1991 DOI: https://doi.org/10.1049/PBEW032E

H. C. Miller, “Surface flashover of insulators”, IEEE Trans. Electr. Insul., Vol. 24, No. 5, pp. 765–786, 1989 DOI: https://doi.org/10.1109/14.42158

L. Zhao, J.-C. Peng, Y.-F. Pan, X.-B. Zhang, J.-C. Su, “Insulation analysis of a coaxial high-voltage vacuum insulator,” IEEE Trans. Plasma Sci., Vol. 38, No. 6, pp. 1369–1374, 2010 DOI: https://doi.org/10.1109/TPS.2010.2040489

J. Choi, Y. Kim, J. So, “Design and experiments of the 600 kV coaxial-type matched divider for high-power microwave source array”, IEEE Trans. Electron Devices, Vol. 61, No. 12, pp. 4240–4246, 2014 DOI: https://doi.org/10.1109/TED.2014.2362292

L. G. Christophorou, R. V. Van Brunt, J. K. Olthoff, “Sulfur Hexafluoride and the electric power industry”, IEEE Electrical Insulation Magazine, Vol. 13, No. 5, pp. 20-24, 1997 DOI: https://doi.org/10.1109/57.620514

L. Niemeyer, F. Y.Chu, “SF6 and the atmosphere”, IEEE Transactions on Electrical Insulation, Vol. 27, No. 1, pp. 184-187, 1992 DOI: https://doi.org/10.1109/14.123455

L. G. Christophorou, R. V. Van Brunt, “SF6 /N2 mixture basic and HV insulation properties”, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 2, No. 5, pp. 952-1003, 1995 DOI: https://doi.org/10.1109/94.469988

T. Nitta, Y. Shibuya, Y. Fujiwara, Y. Arahant, H. Takahashi, H. Kuwahara, “Factors controlling the surface flashover in SF6 gas insulated systems”, IEEE Transactions on Power Apparatus and Systems, Vol. PAS-97, No. 3, pp. 959-965, 1978 DOI: https://doi.org/10.1109/TPAS.1978.354569

T. S. Sudershan, R. A. Dougal, “A review of mechanism of surface flashover along solid dielectrics in compressed gases”, IEEE Transactions on Electrical Insulation, Vol. EI-21, No. 5, pp. 727-746, 1986 DOI: https://doi.org/10.1109/TEI.1986.348922

J. A. Bakken, “Determination of characteristics of voltage in impulse and switching surge testing”, IEEE Transactions on Power Apparatus and Systems, Vol. PAS-86, No. 8, pp. 962-968, 1967 DOI: https://doi.org/10.1109/TPAS.1967.291919

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