不同场强下金属化聚丙烯膜电容器泄漏特性

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Abstract The metallized polypropylene film capacitor(MPPFC) is one of the key components in pulsed power systems. The insulation resistance(IR) is one of the important factors resulting in the reduction of the capacitor energy efficiency in that it applies a current leakage path. This paper concentrates on the leakage phenomenon in the MPPFC by the measurement and analysis of the IR. The results indicate that the time constant(called equivalent IR) is extremely sensitive to the electric field and crystallinity Finally, theoretical calculation of equivalent IR based on the Poole-Frenkel effect match well with the experimental results.

Key words： Capacitor metallized polypropylene film leakage insulation resistance Poole-Frenkel effect

Received: 24 May 2012 Published: 25 March 2014

PACS:

TM315

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	Articles by authors
	Li Zhiwei
	Li Hua
	Yang Peiyuan
	Lin Fuchang
	Chen Yaohong
	Liu De
	Wang Bowen
	Zhang Qin

Cite this article:

Li Zhiwei,Li Hua,Yang Peiyuan等. Leakage Characteristic of Metallized Polypropylene Film Capacitors under Different Electric Fields[J]. Transactions of China Electrotechnical Society, 2013, 28(9): 274-280.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I9/274

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