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Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite Tower

Author

Listed:
  • Jinpeng Hao

    (State Grid Ningxia Electric Power Research Institute, Yinchuan 750011, China)

  • Jinzhu Huang

    (Power Grid Guyuan Electric Power Supply Company, Guyuan 756000, China)

  • Ziyi Fang

    (State Grid Ningxia Electric Power Research Institute, Yinchuan 750011, China)

  • Xiao He

    (School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

  • Qiang Wu

    (School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

  • Xiaolong Gu

    (School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

  • Yu Wang

    (School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

  • Hong Wu

    (State Grid Ningxia Electric Power Research Institute, Yinchuan 750011, China)

Abstract

Rods and plates at the connections in composite insulating material towers are commonly fixed to each other by metal bolts, which may cause electrical field distortion at the connections. So, the rod–plate connections are prone to partial discharge under polluted and wet conditions, and the resulting electric field and temperature changes can affect the mechanical and electrical performance of the whole tower. In this paper, an artificial pollution test synchronous observation platform with an infrared and visible light imager, leakage current, and voltage measurement was built to observe the dry band formation and partial discharge at the simplified rod–plate connections in the composite towers. Then, the electric field simulation of the rod–plate connection specimen showed the current density distribution. When combining the test and the simulation, it was concluded that the cause of the partial discharge was the distortion of the current density and, thus, measures to suppress the partial discharge at the rod–plate connections were proposed. Finally, it was verified that the measures can improve the current density distortion phenomenon, delay dry band formation, and effectively suppress the partial discharge at the rod–plate connections under the same test conditions.

Suggested Citation

  • Jinpeng Hao & Jinzhu Huang & Ziyi Fang & Xiao He & Qiang Wu & Xiaolong Gu & Yu Wang & Hong Wu, 2023. "Suppression Measures of Partial Discharge at Rod–Plate Connection in Composite Tower," Energies, MDPI, vol. 16(9), pages 1-17, April.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:9:p:3712-:d:1133475
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    References listed on IDEAS

    as
    1. Mohammed El Amine Slama & Maurizio Albano & Abderrahmane Manu Haddad & Ronald T. Waters & Oliver Cwikowski & Ibrahim Iddrissu & Jon Knapper & Oliver Scopes, 2021. "Monitoring of Dry Bands and Discharge Activities at the Surface of Textured Insulators with AC Clean Fog Test Conditions," Energies, MDPI, vol. 14(10), pages 1-17, May.
    2. Marc-Alain Andoh & Kone Gbah & Christophe Volat, 2022. "Development of a Simple Experimental Setup for the Study of the Formation of Dry Bands on Composite Insulators," Energies, MDPI, vol. 15(14), pages 1-17, July.
    3. Da Zhang & Fancui Meng, 2019. "Research on the Interrelation between Temperature Distribution and Dry Band on Wet Contaminated Insulators," Energies, MDPI, vol. 12(22), pages 1-14, November.
    Full references (including those not matched with items on IDEAS)

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