液氮下杂化薄膜材料的直流击穿性能研究

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Abstract With the emergence of superconductor technology,the methodology for designing and implementing HTS power devices are quickly being developed. HTS power devices are receiving considerable attention due to their high-capacity and low loss. Compared to AC HTS power devices,DC superconducting power devices have the advantage of zero impedance and have become the optimal choice among power devices. To aid in the development of DC superconducting power devices,the DC dielectric breakdown characteristics of dielectric sheets in liquid nitrogen should be better understood. In this paper,DC breakdown tests are performed for six types of sheets including Dupont NomexT410 fiber paper,Dupont NomexT418,Dupont 100HN,Dupont 100CR,Dupont 150FN019 which consist of 100HN and Teflon,and Dupont 150FCR019 which consist of 100CR and Teflon,in liquid nitrogen. The result shows that hybrid films have better DC breakdown strength,compared to non-hybrid film. At the same time,the difference of breakdown characteristic between non-hybrid films and hybrid films are analyzed.

Key words： HTS electrical installation liquid nitrogen DC breakdown hybrid films breakdown characteristics

Received: 10 February 2014 Published: 22 January 2015

PACS:

TM201.4+4

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	Articles by authors
	Liu Zhikai
	Li Weiguo
	Wei Bin
	Qiu Ming
	Gao Xingjun
	Gao Chao
	Zhao Yongqing
	Li Song

Cite this article:

Liu Zhikai,Li Weiguo,Wei Bin等. Study of Breakdown Characteristics for Hybrid Films in Liquid Nitrogen[J]. Transactions of China Electrotechnical Society, 2014, 29(12): 225-229.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I12/225

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