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Volume and Surface Resistivity Measurement of Insulating Materials Using Guard-Ring Terminal Electrodes

Author

Listed:
  • Heon-Gyeong Lee

    (High Voltage & Plasma Application Lab. (HVPAL), Department of Electrical Engineering, KyungPook National University, Daehakro, Bukgu, Daegu 41566, Korea)

  • Jin-Gyu Kim

    (High Voltage & Plasma Application Lab. (HVPAL), Department of Electrical Engineering, KyungPook National University, Daehakro, Bukgu, Daegu 41566, Korea)

Abstract

Recently, eco-friendly energy conversion policies have been being promoted through de-nuclearization and de-coal. For this purpose, a super grid should be built to optimize sustainable renewable energy resources such as solar and wind power. Accordingly, considering the various problems such as technology and cost, a system for efficient energy transmission is required. Hence, research is being actively conducted to apply it, owing to the development of the high voltage direct current (HVDC) system. Among HVDC systems, the cable system is extremely important, in addition to the measurement of the dielectric breakdown strength, space charge, and volume resistivity of insulating materials. The existing resistivity measurement method measures both the volume and surface resistivity using a three-terminal electrode that is used in the international standards of American Society for Testing and Materials (ASTM) D 257 and International Electrotechnical Commission (IEC) 60093. However, the circuit configuration differs depending on the measurement of the volume and surface resistivity; moreover, when a DC voltage is applied to the insulator, a charging current flows and there are multiple samples to be measured, which takes a considerable amount of time. Therefore, in this study, we proposed a new type of resistivity measurement system that is based on the existing three-terminal electrode system. Furthermore, we produced a system capable of simultaneously measuring the volume and surface resistivity. Finally, using this system, we compared and analyzed the volume and surface resistivity of five insulating materials.

Suggested Citation

  • Heon-Gyeong Lee & Jin-Gyu Kim, 2020. "Volume and Surface Resistivity Measurement of Insulating Materials Using Guard-Ring Terminal Electrodes," Energies, MDPI, vol. 13(11), pages 1-12, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:11:p:2811-:d:366080
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    References listed on IDEAS

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    1. González, Javier Serrano & Lacal-Arántegui, Roberto, 2016. "A review of regulatory framework for wind energy in European Union countries: Current state and expected developments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 588-602.
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    Cited by:

    1. Qian Wang & Xidong Liang & Ke Chen & Chao Wu & Shan Liu, 2021. "Surface Charge Properties of Epoxy Composites under DC Voltage Affected by Surface and Bulk Conductivity," Energies, MDPI, vol. 14(2), pages 1-12, January.

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