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Electric Field Distribution and Dielectric Losses in XLPE Insulation and Semiconductor Screens of High-Voltage Cables

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  • Zbigniew Nadolny

    (Division of High Voltage and Electrotechnical Materials, Institute of Electric Power Engineering, Faculty of Environmental Engineering and Energy, Poznan University of Technology, 60-965 Poznan, Poland)

Abstract

This article presents the electric field distribution E and dielectric losses ΔP diel. in the insulation system of high-voltage cables. Such a system consists of inner and outer semiconductor screens and XLPE insulation. The aim of this study was to compare the values of E and ΔP diel. between semiconductor screens and XLPE insulation. The objects of the research were high-voltage cables of 110 kV, 220 kV, 400 kV, and 500 kV. The geometrical dimensions of the cables, especially the radii of individual layers of insulation, as well as the electrical properties of the screens and XLPE, were taken from the literature. Semiconductor screens and XLPE insulation were treated as a system of three concentric cylinders. When determining the electric field distribution, both the electrical permittivity and electrical conductivity, which, in the case of semiconductor screens, play important roles, were taken into account. The obtained results prove that both the electric field distribution E and dielectric losses P diel. are significantly larger in XLPE insulation than in semiconductor screens. The intensity E in XLPE insulation is about four orders of magnitude greater than the intensity in semiconductor screens. Dielectric losses ΔP diel. in XLPE insulation are about eight orders of magnitude greater than the losses occurring in semiconductor screens.

Suggested Citation

  • Zbigniew Nadolny, 2022. "Electric Field Distribution and Dielectric Losses in XLPE Insulation and Semiconductor Screens of High-Voltage Cables," Energies, MDPI, vol. 15(13), pages 1-14, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:13:p:4692-:d:848430
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    References listed on IDEAS

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    1. Guangya Zhu & Kai Zhou & Wei Gong & Min He & Jiaming Kong & Kangle Li, 2019. "Inhibition of Rejuvenation Liquid on Trees in XLPE Cables under Switching Impulse Voltages," Energies, MDPI, vol. 12(11), pages 1-14, June.
    2. Hanen Yahyaoui & Jerome Castellon & Serge Agnel & Aurelien Hascoat & Wilfried Frelin & Christophe Moreau & Pierre Hondaa & Dominique le Roux & Virginie Eriksson & Carl Johan Andersson, 2021. "Behavior of XLPE for HVDC Cables under Thermo-Electrical Stress: Experimental Study and Ageing Kinetics Proposal," Energies, MDPI, vol. 14(21), pages 1-15, November.
    3. Sarath Kumara & Xiangdong Xu & Thomas Hammarström & Yingwei Ouyang & Amir Masoud Pourrahimi & Christian Müller & Yuriy V. Serdyuk, 2020. "Electrical Characterization of a New Crosslinked Copolymer Blend for DC Cable Insulation," Energies, MDPI, vol. 13(6), pages 1-15, March.
    4. Thi Thu Nga Vu & Gilbert Teyssedre & Séverine Le Roy, 2021. "Electric Field Distribution in HVDC Cable Joint in Non-Stationary Conditions," Energies, MDPI, vol. 14(17), pages 1-17, August.
    5. Yifan Zhou & Wei Wang & Tailong Guo, 2020. "Space Charge Accumulation Characteristics in HVDC Cable under Temperature Gradient," Energies, MDPI, vol. 13(21), pages 1-17, October.
    6. Bassel Diban & Giovanni Mazzanti, 2021. "The Effect of Insulation Characteristics on Thermal Instability in HVDC Extruded Cables," Energies, MDPI, vol. 14(3), pages 1-22, January.
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    Cited by:

    1. Songyuan Li & Pengxian Song & Zhanpeng Wei & Xu Li & Qinghua Tang & Zhengzheng Meng & Ji Li & Songtao Liu & Yuhuai Wang & Jin Li, 2022. "Partial Discharge Detection and Defect Location Method in GIS Cable Terminal," Energies, MDPI, vol. 16(1), pages 1-10, December.
    2. Krzysztof Walczak, 2023. "Localization of HV Insulation Defects Using a System of Associated Capacitive Sensors," Energies, MDPI, vol. 16(5), pages 1-15, February.

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