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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.2
- 수록면
- 55 - 60 (6page)
- DOI
- 10.5207/JIEIE.2024.38.1.55
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초록· 키워드
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This study investigates the impact of surface roughness on the surface discharge characteristics of solid insulators under high vacuum conditions, essential for the insulation design of superconducting magnets operated in such environments. Experiments were conducted to analyze the surface discharge properties in relation to the surface roughness of Polyether ether ketone (PEEK), a material commonly used as a solid insulator in superconducting applications, both in atmospheric and high vacuum conditions. Furthermore, additional experiments were carried out on other widely used solid insulators in superconducting applications, namely Monomer Casting (MC) Nylon, Glass Fiber Reinforced Polymer (GFRP), and Teflon, to assess their surface discharge characteristics under high vacuum. The results indicated that the surface discharge behavior of these solid insulators is significantly influenced by their surface roughness under high vacuum conditions. It was observed that an increase in surface roughness led to a decrease in surface discharge values, whereas a decrease in roughness resulted in higher discharge values. This trend is attributed to the variation in the amount of residual charge on the insulator’s surface, which is affected by the surface texture. Consequently, for enhanced electrical stability of superconducting magnets in high vacuum, it is crucial to optimize the surface roughness of solid insulators to minimize residual charges and prevent insulation breakdown due to collision ionization.
목차
Abstract
1. 서론
2. 연면방전 실험 준비
3. 실험 결과
4. 결론
References
참고문헌 (9)
참고문헌 신청
R. Inoue, H. Ueda, and S. Kim, “Study on low-loss and high-energy density coil structure of a wireless power transmission system using high temperature superconducting coils for railway vehicle,” in IEEE Transactions on Applied Superconductivity, vol. 32, no. 6, pp. 1-4, 2022.
Paolo Ferracin and Ezio Todesco, “Protection of superconducting accelerator magnets,” Superconducting Accelerator Magnets, 2015.
W. Liu, S. Dai, T. Ma, and Y. Shi, “Voltage distribution characteristic of the d-shaped coil of HTS-SMES under high-frequency impulse,” in IEEE Transactions on Applied Superconductivity, vol. 32, no. 9, pp. 1-10, 2022.
Sahil Kalra, et al., “Investigations on the suitability of PEEK material under space environment conditions and its application in a parabolic space antenna,” Advances in Space Research, vol. 63, no. 12, pp. 4039-4045, 2019.
E. Kantar, E. Ildstad, and S. Hvidsten, “Effect of material elasticity on the longitudinal AC breakdown strength of solid-solid interfaces,” in IEEE Transactions on Dielectrics and Electrical Insulation, vol. 26, no. 2, pp. 655-663, 2019.
Paolo Ferracin and Ezio Todesco, “Protection of superconducting accelerator magnets,” Superconducting Accelerator Magnets, 2015.
W. Liu, S. Dai, T. Ma, and Y. Shi, “Voltage distribution characteristic of the d-shaped coil of HTS-SMES under high-frequency impulse,” in IEEE Transactions on Applied Superconductivity, vol. 32, no. 9, pp. 1-10, 2022.
Sahil Kalra, et al., “Investigations on the suitability of PEEK material under space environment conditions and its application in a parabolic space antenna,” Advances in Space Research, vol. 63, no. 12, pp. 4039-4045, 2019.
E. Kantar, E. Ildstad, and S. Hvidsten, “Effect of material elasticity on the longitudinal AC breakdown strength of solid-solid interfaces,” in IEEE Transactions on Dielectrics and Electrical Insulation, vol. 26, no. 2, pp. 655-663, 2019.
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