NDLI: Study on suppression mechanism of space charge accumulation in nano-doped LDPE

Content Provider	IEEE Xplore Digital Library
Author	Kai Wu Zepeng Lv Xia Wang Tu, D. Dissado, L.A.
Copyright Year	2012
Description	Author affiliation: State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China (Kai Wu; Zepeng Lv; Xia Wang; Tu, D.) \|\| Department of Engineering, University of Leicester, University Road, Leicester LE1 7RH, U.K. (Dissado, L.A.)
Abstract	The introduction of nano-fillers into polyethylene can suppress space charge accumulation. The mechanism of this phenomenon hasn't been understood clearly, and has been explained in two different ways, i.e. an interface behavior that reduces charge injection and a bulk property that affects charge migration. In order to investigate which factor determines the space charge behavior in LDPE nano-composites, samples of triple-layer structure are measured. The experimental results show that the nano-fillers can reduce charge injection. However, the reduced charge injection cannot entirely remove the space charge. The bulk property also plays an important role in space charge suppression. Furthermore, a bipolar blocking phenomenon is found in our triple layer sample at high temperature. This can be explained by a shift in the apparent Fermi (charge demarcation) level near the electrode due to the trapping of injected charge, which increases the interface barrier.
Starting Page	299
Ending Page	302
File Size	830609
Page Count	4
File Format	PDF
ISBN	9781467312530
ISSN	00849162
e-ISBN	9781467312523
e-ISBN	9781467312516
DOI	10.1109/CEIDP.2012.6378780
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-14
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space charge Nanocomposites Temperature measurement Temperature distribution Polyethylene Insulation
Content Type	Text
Resource Type	Article

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