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11 December 2024 Preparation of epoxy resin cavity defect sample and research on partial discharge characteristic of three different cavity size
Huang Junkai, Li Bo, Deng Song, Xing Yi, Chen Lin
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Proceedings Volume 13445, International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2024); 1344530 (2024) https://doi.org/10.1117/12.3052702
Event: International Conference on Electronics. Electrical and Information Engineering (ICEEIE 2024), 2024, Haikou, China
Abstract
Epoxy resin as an excellent material is widely used in various power equipment. Therefore, for the safe and stable operation of power equipment, it is necessary to study the internal defects of epoxy resin. Although many studies have clarified the preparation method of defect samples and the fundamental phenomenon of deterioration caused by partial discharge (PD) occurring due to defects in inner epoxy, little is known about whether the defect model conforms to the reality. The relation between cavity size and discharge is not clear as well. Hence, this paper provides a realistic and convenient way to generate cavity defect samples by using a pipette gun. Partial discharge measurements with three different sensors have been used to understand the role of cavity size in the process of discharge in the cavity sample. Fast Fourier Transform is also used to study the relation between the frequency of discharge signal and cavity size. The result suggests that the size of cavity does have an effect on the discharge amplitude and the discharge frequency.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Huang Junkai, Li Bo, Deng Song, Xing Yi, and Chen Lin "Preparation of epoxy resin cavity defect sample and research on partial discharge characteristic of three different cavity size", Proc. SPIE 13445, International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2024), 1344530 (11 December 2024); https://doi.org/10.1117/12.3052702
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KEYWORDS
Epoxies
Electric fields
Sensors
Electrical properties
Electrodes
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