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Flashover Performance Test with Lightning Impulse and Simulation Analysis of Different Insulators in a 110 kV Double-Circuit Transmission Tower

Author

Listed:
  • Yaqi Zhang

    (School of Electric Power, South China University of Technology, Guangzhou 510640, China)

  • Licheng Li

    (School of Electric Power, South China University of Technology, Guangzhou 510640, China)

  • Yongxia Han

    (School of Electric Power, South China University of Technology, Guangzhou 510640, China)

  • Yaoxuan Ruan

    (School of Electric Power, South China University of Technology, Guangzhou 510640, China)

  • Jie Yang

    (School of Electric Power, South China University of Technology, Guangzhou 510640, China)

  • Hansheng Cai

    (Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China)

  • Gang Liu

    (Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China)

  • Yi Zhang

    (Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China)

  • Lei Jia

    (Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China)

  • Yutang Ma

    (Electric Power Science Research Institute of Yunnan Power Supply Company, Kunming 650217, China)

Abstract

The flashover performance of insulators is the foundation of the calculation of precise lightning protection. The material and structure of an insulator affect its flashover performance but the research on the differences in the flashover performance of different insulators and the analysis of the reason for these differences have not been clear. In this paper, lightning impulse flashover tests of two types of insulators (composite and glass insulators) were carried out in the National Engineering Laboratory (Kunming) for Ultrahigh-voltage Engineering Technology. In these tests, the insulators were hung in a 110 kV double-circuit transmission tower and a standard lightning impulse (1.2/50 μs) was applied to the insulators. The discharge path and the 50% impulse flashover voltage of the insulators were recorded. At the same time, the electric fields in the vicinity of different insulators were calculated using the finite element method with COMSOL Multiphysics. The electric field distribution and the uneven coefficient were analyzed. Combined with the flashover test data and the electric field simulation, the relationship between the flashover performance (discharge path and 50% impulse flashover voltage) and the electric field (electric field distribution and uneven coefficient) is found. The simulation results are in accordance with the test data and the conclusions can provide useful references for the external insulation design of transmission lines and the optimization of insulators.

Suggested Citation

  • Yaqi Zhang & Licheng Li & Yongxia Han & Yaoxuan Ruan & Jie Yang & Hansheng Cai & Gang Liu & Yi Zhang & Lei Jia & Yutang Ma, 2018. "Flashover Performance Test with Lightning Impulse and Simulation Analysis of Different Insulators in a 110 kV Double-Circuit Transmission Tower," Energies, MDPI, vol. 11(3), pages 1-13, March.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:3:p:659-:d:136426
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    References listed on IDEAS

    as
    1. Jianlin Hu & Caixin Sun & Xingliang Jiang & Daibo Xiao & Zhijin Zhang & Lichun Shu, 2012. "DC Flashover Performance of Various Types of Ice-Covered Insulator Strings under Low Air Pressure," Energies, MDPI, vol. 5(5), pages 1-23, May.
    2. 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. Jiazheng Lu & Pengkang Xie & Jianping Hu & Zhenglong Jiang & Zhen Fang, 2018. "AC Flashover Performance of 10 kV Rod-Plane Air-Gapped Arresters under Rain Conditions," Energies, MDPI, vol. 11(6), pages 1-11, June.
    2. Erika Stracqualursi & Giuseppe Pelliccione & Salvatore Celozzi & Rodolfo Araneo, 2022. "Tower Models for Power Systems Transients: A Review," Energies, MDPI, vol. 15(13), pages 1-40, July.
    3. Jing Huang & Kejian Liu & Dan Zeng & Zhijiang Zhang, 2018. "An Online Measurement Method for Insulator Creepage Distance on Transmission Lines," Energies, MDPI, vol. 11(7), pages 1-18, July.
    4. Jordi-Roger Riba & Francesca Capelli, 2018. "Analysis of Capacitance to Ground Formulas for Different High-Voltage Electrodes," Energies, MDPI, vol. 11(5), pages 1-19, April.

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