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Analytical Approach to Current Rating of Three-Phase Power Cable with Round Conductors

Author

Listed:
  • Tomasz Szczegielniak

    (Department of Automation, Electrical Engineering and Optoelectronics, Faculty of Electrical Engineering, Czestochowa University of Technology, Armii Krajowej 17, 42-200 Czestochowa, Poland)

  • Paweł Jabłoński

    (Department of Automation, Electrical Engineering and Optoelectronics, Faculty of Electrical Engineering, Czestochowa University of Technology, Armii Krajowej 17, 42-200 Czestochowa, Poland)

  • Dariusz Kusiak

    (Department of Automation, Electrical Engineering and Optoelectronics, Faculty of Electrical Engineering, Czestochowa University of Technology, Armii Krajowej 17, 42-200 Czestochowa, Poland)

Abstract

The continuous increase in the demand for electricity makes it necessary to modernize or build new transmission lines. This, in turn, results in research that is still being carried out on the optimal use of power cables. In the paper, an improved analytical method for the determination of the current rating of power cables was proposed. The method for determining the ampacity of the power cable presented in the IEC standard assumes that power losses in the phase conductors and screens are determined by taking into account skin and the proximity effects on the basis of tabulated coefficients. The methodology proposed in the paper is based on the method presented in the IEC standard, but the power losses in the conductive elements of the cable are determined analytically, which offers higher accuracy. In order to validate the analytical method proposed in this paper, numerical calculations based on the finite element method with very fine mesh were also performed. Exemplary calculations carried out for three types of cables with use of the proposed method, IEC standard and finite elements showed very good agreement in the results. The proposed method requires more computational effort, but it offers more accurate results than the IEC standard and can be used when higher accuracy is required. It can also serve as a reference point for simplified calculations.

Suggested Citation

  • Tomasz Szczegielniak & Paweł Jabłoński & Dariusz Kusiak, 2023. "Analytical Approach to Current Rating of Three-Phase Power Cable with Round Conductors," Energies, MDPI, vol. 16(4), pages 1-18, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:4:p:1821-:d:1065779
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    References listed on IDEAS

    as
    1. Juan Carlos del-Pino-López & Pedro Cruz-Romero, 2021. "Use of 3D-FEM Tools to Improve Loss Allocation in Three-Core Armored Cables," Energies, MDPI, vol. 14(9), pages 1-23, April.
    2. Kyu-hoon Park & Il Kwon & Bang-wook Lee, 2021. "Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable," Energies, MDPI, vol. 14(19), pages 1-16, October.
    3. Lin Yang & Weihao Qiu & Jichao Huang & Yanpeng Hao & Mingli Fu & Shuai Hou & Licheng Li, 2018. "Comparison of Conductor-Temperature Calculations Based on Different Radial-Position-Temperature Detections for High-Voltage Power Cable," Energies, MDPI, vol. 11(1), pages 1-17, January.
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