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Analysis of the Influence of Silicone Rubber Aging on the Transmission Parameters of Terahertz Waves

Author

Listed:
  • Haitao Yang

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Zhensheng Wu

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Weinan Dong

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Junpeng Dang

    (Yuxi Power Supply Bureau, China Southern Power Grid Yunnan Power Grid Co., Ltd., Yuxi 653100, China)

  • Hao Ren

    (School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China)

Abstract

In this study, a method for testing the aging of silicone rubber insulators using terahertz waves in the 0.17–0.22 THz frequency band is proposed, aiming at the problem of online non-destructive testing of the aging degree of composite insulators. The relationship between the aging degree of silicone rubber composite insulators and the relative dielectric constant was studied through first-principles calculations and molecular chain scission models. In addition, the electromagnetic model of the terahertz signal incident on the silicon rubber sheet was simulated and the relationship between the aging degree of the silicon rubber and the terahertz input return loss was obtained. Eleven insulator samples with different degrees of aging were selected. In these samples, the degree of aging was calibrated according to the degree of surface deterioration and the average partial discharge voltage. The terahertz return loss measurement experiment was performed after that. Finally, the results of experiment and calculation simulation were compared and the reliability of the relationship between the aging degree of the silicone rubber insulator and the terahertz input return loss was verified.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:14:p:4238-:d:593893
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    References listed on IDEAS

    as
    1. 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.
    2. Muhammad Majid Hussain & Muhammad Akmal Chaudhary & Abdul Razaq, 2019. "Mechanism of Saline Deposition and Surface Flashover on High-Voltage Insulators near Shoreline: Mathematical Models and Experimental Validations," Energies, MDPI, vol. 12(19), pages 1-20, September.
    3. Mohamed Ghouse Shaik & Vijayarekha Karuppaiyan, 2019. "Investigation of Surface Degradation of Aged High Temperature Vulcanized (HTV) Silicone Rubber Insulators," Energies, MDPI, vol. 12(19), pages 1-16, October.
    4. Krzysztof Wieczorek & Przemysław Ranachowski & Zbigniew Ranachowski & Piotr Papliński, 2020. "Ageing Tests of Samples of Glass-Epoxy Core Rods in Composite Insulators Subjected to High Direct Current (DC) Voltage in a Thermal Chamber," Energies, MDPI, vol. 13(24), pages 1-13, December.
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