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Research on the Measurement of AC Resistance of Overhead Transmission Lines Considering Actual Operating Conditions

Author

Listed:
  • Dexin Xie

    (Economic and Technological Research Institute, State Grid Chongqing Electric Power Company, Chongqing 401121, China)

  • Zhen Qin

    (State Grid Chongqing Electric Power Company, Chongqing 400015, China)

  • Shian Xie

    (Economic and Technological Research Institute, State Grid Chongqing Electric Power Company, Chongqing 401121, China)

  • Jian Jiang

    (Economic and Technological Research Institute, State Grid Chongqing Electric Power Company, Chongqing 401121, China)

  • Feng Bai

    (Economic and Technological Research Institute, State Grid Chongqing Electric Power Company, Chongqing 401121, China)

  • Jiaqi Li

    (Chongqing Guanghui Power Supply Service Co., Ltd., Chongqing 400014, China)

  • Gaohui He

    (College of Engineering and Technology, Southwest University, Chongqing 400715, China)

Abstract

The presence of alternating current (AC) resistance in overhead conductors contributes to additional energy losses during electrical energy transmission and affects the current-carrying capacity of the lines. However, a standardized measurement method for AC resistance remains unavailable. This paper presents the design of an experimental platform for measuring the AC resistance of conductors using an electrical measurement approach in conjunction with the least squares method. In the experiments, data were collected for four conductors, including current, AC resistance, and temperature. The study analyzes the relationships among the AC resistance of the conductors, their temperature, and the AC/DC resistance ratio as the current varies. The results from measuring the AC/DC resistance ratio indicate that the platform is effective for AC resistance measurement and can serve as a valuable reference for evaluating the AC losses of existing line conductors.

Suggested Citation

  • Dexin Xie & Zhen Qin & Shian Xie & Jian Jiang & Feng Bai & Jiaqi Li & Gaohui He, 2024. "Research on the Measurement of AC Resistance of Overhead Transmission Lines Considering Actual Operating Conditions," Energies, MDPI, vol. 17(24), pages 1-19, December.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:24:p:6336-:d:1544990
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