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Temperature and Field Induced Variations of Electric Conductivities of HTV Silicone Rubbers Derived from Measured Currents and Surface Potential Decay Characteristics

Author

Listed:
  • Shahid Alam

    (Department of Electrical Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden)

  • Yuriy V. Serdyuk

    (Department of Electrical Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden)

  • Stanislaw M. Gubanski

    (Department of Electrical Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden)

Abstract

The temperature and field dependencies of electric conductivities of two types of silicone rubber-based polymers intended for use in high voltage direct current applications are presented and discussed. The conductivities obtained with the standard method by measuring a current through the material sample placed between metallic electrodes in response to the applied voltage are compared with those deduced from the measured potential decay on pre-charged material surface in an open circuit configuration. The measurements were conducted in the range of the applied electric field strength (0.5–5) kV/mm and temperatures ranging from 22 °C to 70 °C. It is shown that the values of the conductivities obtained by the two methods are in agreement and their temperature dependences obey Arrhenius law yielding similar activation energies.

Suggested Citation

  • Shahid Alam & Yuriy V. Serdyuk & Stanislaw M. Gubanski, 2020. "Temperature and Field Induced Variations of Electric Conductivities of HTV Silicone Rubbers Derived from Measured Currents and Surface Potential Decay Characteristics," Energies, MDPI, vol. 13(11), pages 1-10, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:11:p:2982-:d:369517
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    References listed on IDEAS

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    1. Arshad & Azam Nekahi & Scott G. McMeekin & Masoud Farzaneh, 2016. "Flashover Characteristics of Silicone Rubber Sheets under Various Environmental Conditions," Energies, MDPI, vol. 9(9), pages 1-19, August.
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    Cited by:

    1. Haitao Yang & Zhensheng Wu & Weinan Dong & Junpeng Dang & Hao Ren, 2021. "Analysis of the Influence of Silicone Rubber Aging on the Transmission Parameters of Terahertz Waves," Energies, MDPI, vol. 14(14), pages 1-17, July.

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