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10 August 2023 Application of half-boundary method in the study of thermal characteristics of lighting arrester
Boxue Wang, Bowen Wang, Zhenglong Jiang, Mei Huang, Xiangyuan Meng
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Proceedings Volume 12748, 5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023); 127483W (2023) https://doi.org/10.1117/12.2689647
Event: 5th International Conference on Information Science, Electrical and Automation Engineering (ISEAE 2023), 2023, Wuhan, China
Abstract
Lightning arrester in the power system to assume a very important role, its thermal characteristics are directly related to the arrester can operate normally. Surge arrester in addition to long-term frequency voltage also intermittently withstand the frequency overvoltage, lightning overvoltage and operating overvoltage and other transient overvoltage, resulting in the rise of the internal zinc oxide valve temperature. If the heat cannot be distributed in time, the valve temperature exceeds a certain limit value will cause thermal damage to the arrester [1, 2]. This paper investigates the thermal characteristics of the arrester by using the half-boundary method. By solving the differential equation for thermal conductivity in the cylindrical coordinate system, simulations were performed to study the thermal characteristics of the arrester under two-dimensions. The thermal characteristics of the arrester are obtained, and the research results provide an important reference for the stable operation of the arrester.
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Boxue Wang, Bowen Wang, Zhenglong Jiang, Mei Huang, and Xiangyuan Meng "Application of half-boundary method in the study of thermal characteristics of lighting arrester", Proc. SPIE 12748, 5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023), 127483W (10 August 2023); https://doi.org/10.1117/12.2689647
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KEYWORDS
Lightning
Temperature distribution
Thermal modeling
Polymers
Resistors
Zinc oxide
Engineering
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