A method for calculating the surface magnetic field of three core power cable

Jiafeng Wang; Xuebin Sun; Zhongchuang Shan; Liangzhi Yin; Ming Guo; Jicheng Yang; Zuli Jiang

doi:10.1117/12.3004246

25 September 2023 A method for calculating the surface magnetic field of three core power cable

Jiafeng Wang, Xuebin Sun, Zhongchuang Shan, Liangzhi Yin, Ming Guo, Jicheng Yang, Zuli Jiang

Proceedings Volume 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023); 1278835 (2023) https://doi.org/10.1117/12.3004246
Event: Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 2023, Kuala Lumpur, Malaysia

Abstract

Due to operational requirements, high-voltage live working bypass cables are different from ordinary cables, and their magnetic field distribution is more complex than ordinary cables. The high-voltage cable is a three-core power cable. The sum of the three-phase currents transmitted by a three-core power cable during steady-state operation is 0. Traditional current transformers cannot measure the currents of each core wire, that is, each phase, and their measurement accuracy is difficult to ensure. This paper proposes an analytical calculation method for the surface magnetic field of a three core power cable based on the electromagnetic field equation that characterizes the electromagnetic characteristics of each part of the cable in a current flowing state. This method is not only suitable for symmetrical three-core cables, but also for other cables with arbitrary three-core distribution. Based on this analytical algorithm, by measuring the magnetic field on the surface of a three core power cable, it is possible to accurately measure the current of each core of the three core power cable.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jiafeng Wang, Xuebin Sun, Zhongchuang Shan, Liangzhi Yin, Ming Guo, Jicheng Yang, and Zuli Jiang "A method for calculating the surface magnetic field of three core power cable", Proc. SPIE 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 1278835 (25 September 2023); https://doi.org/10.1117/12.3004246

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