Observation of space charge formation in LDPE/MgO nano-composite under DC stress at high temperature

被引：24
|
作者：
Taima, J. [1 ]
Inaoka, K. [1 ]
Maezawa, T. [1 ]
Tanaka, Y. [1 ]
Takada, T. [1 ]
Murata, Y. [2 ]
机构：
[1] Musashi Inst Technol, Tokyo, Japan
[2] J Power Syst Corp, Tokyo, Japan
来源：
2006 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA | 2006年
关键词：
D O I：
10.1109/CEIDP.2006.311929
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：
Space charge formation in a nano-composite thin film under dc stress at various temperatures was observed using the pulsed electro-acoustic (PEA) method. The LDPE/MgO nano-composite materials, which is made of low-density polyethylene (LDPE) mixed with magnesium oxide (MgO) nano-size filler, has a higher resistivity under high dc stress than that in LDPE. Therefore, the material is expected to be used as an insulator of dc power transmission cable. To use the material as the dc power cable, however, it is necessary to study the space charge characteristics, especially at high temperature because an actual power cable is used at high temperature. Therefore, we tried to investigate the space charge formation in thin film of LDPE/MgO nano-composite under dc electric field at various temperatures using PEA system. From the experimental results, it was found that the space charge formation was strongly affected by the MgO contents in LDPE/MgO nano-composite.
引用
收藏
页码：302 / 305
页数：4
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