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Research on the Carrier Characteristics of Power Cables Considering the Aging Status of Insulation and Semiconducting Layers

Author

Listed:
  • Xiaohua Yang

    (Measurement Center of Yunnan Power Grid Co., Ltd., Kunming 650051, China)

  • Zixuan Wang

    (National Key Laboratory of Electrical Materials and Insulation, Xi’an Jiaotong University, Xi’an 710049, China)

  • Jiahao Li

    (Measurement Center of Yunnan Power Grid Co., Ltd., Kunming 650051, China)

  • Ming Wu

    (National Key Laboratory of Electrical Materials and Insulation, Xi’an Jiaotong University, Xi’an 710049, China)

  • Guanpan Wang

    (Measurement Center of Yunnan Power Grid Co., Ltd., Kunming 650051, China)

  • Xueting Gao

    (National Key Laboratory of Electrical Materials and Insulation, Xi’an Jiaotong University, Xi’an 710049, China)

  • Jinghui Gao

    (National Key Laboratory of Electrical Materials and Insulation, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

The 10 kV XPLE cable is widely used in highly cabled transmission and distribution networks. It is necessary to closely monitor the transient current, harmonic content, and electric field distribution of each layer of the insulation and semiconductive layers of the cable when they age and deteriorate, so as to promptly carry out circuit breaking treatment and prevent safety accidents. Considering the frequency sensitivity and dielectric sensitivity of the distributed R unit , L unit , G unit , and C unit parameters of long cables, this paper quantitatively analyzes the frequency variation of 10 kV cable parameters under different aging states. Reconstructing the frequency variation process of typical electrical quantities through MATLAB PSCAD joint simulation, constructing fault circuits for cable insulation and semiconducting layers, obtaining transient currents in each layer of the cable under aging conditions, and conducting total harmonic distortion (THD) analysis to provide theoretical guidance for the subsequent monitoring and fault diagnosis of distribution cable status.

Suggested Citation

  • Xiaohua Yang & Zixuan Wang & Jiahao Li & Ming Wu & Guanpan Wang & Xueting Gao & Jinghui Gao, 2024. "Research on the Carrier Characteristics of Power Cables Considering the Aging Status of Insulation and Semiconducting Layers," Energies, MDPI, vol. 17(22), pages 1-12, November.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:22:p:5655-:d:1519384
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