Electric Characteristics of MgO/LDPE Nanocomposite up to Breakdown under DC Ramp Voltage

被引：0

作者：

Okazaki, T. ^{[1
]}

Okuzumi, S. ^{[1
]}

Imazawa, S. ^{[1
]}

Murakami, Y. ^{[1
]}

Nagao, M. ^{[1
]}

Sekiguchi, Y. ^{[2
]}

Reddy, C. C. ^{[2
]}

Murata, Y. ^{[2
]}

机构：

[1] Toyohashi Univ Technol, Tempaku Ku, Hibarigaoka 1-1, Toyohashi, Aichi 4418580, Japan

[2] J Power Syst Corp, Hitachi, Ibaraki 3191414, Japan

来源：

CEIDP: 2009 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA | 2009年

基金：

日本学术振兴会;

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To understand DC breakdown phenomena of low density polyethylene (LDPE) mixed with nano-sized magnesium oxide (MgO), the electric properties, namely, DC breakdown strength, conduction current, space charge formation and local heat generation up to the breakdown under increasing field with a particular rate of increase was investigated. DC breakdown strength of nanocomposite was found to be high compared to that of LDPE. The increasing rate of the conduction current in nanocomoposite with respect to the average field (under high field) was suppressed by the addition of MgO nano-filler. The space charge formation and the local heat generation were also suppressed under high field. From these results, it is suggested that the suppression effect of conduction current affected by the space charge led to higher DC breakdown strength of nanocomposite material.

引用

页码：180 / +

页数：2

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