Simulation research on internal defects of composite insulator based on microwave reflection method

Han Zhang; Zhiyuan Jia; Pei Wang; Junjie Liu

doi:10.1117/12.3004305

25 September 2023 Simulation research on internal defects of composite insulator based on microwave reflection method

Han Zhang, Zhiyuan Jia, Pei Wang, Junjie Liu

Proceedings Volume 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023); 1278834 (2023) https://doi.org/10.1117/12.3004305
Event: Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 2023, Kuala Lumpur, Malaysia

Abstract

The mandrel of the composite insulator is mainly made of mandrel and silicone rubber, and the mandrel material is Glass Fibre Reinforced Polymer (GFRP). If a defect occurs inside the mandrel of the composite insulator, it will eventually lead to brittle fracture, which will lead to extremely serious accidents. In this paper, the CST STUDIO SUITE tool is used to numerically model and analyse the internal defects of composite insulators. The frequency range is 26.5~40 GHz, and a simple method for judging composite insulators with different depths, sizes and types of defects is obtained: The second peak of the time-domain reflection coefficient of the conduction defect is the largest, the carbonization defect is between the no-defect condition and the conduction defect, and the air-gap defect is lower than the no-defect condition; and the shallower the air-gap defect depth, the larger the defect, The smaller the second peak value of the time domain reflection coefficient is, the larger the time domain signal area is. The simulation results show that it is feasible to use the microwave reflection method to detect the defects of composite insulators.

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

Citation Download Citation

Han Zhang, Zhiyuan Jia, Pei Wang, and Junjie Liu "Simulation research on internal defects of composite insulator based on microwave reflection method", Proc. SPIE 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 1278834 (25 September 2023); https://doi.org/10.1117/12.3004305

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