Partial discharge endurance life of polymer insulating materials at high temperature

被引：0
作者：
Okamoto, T [1 ]
Suzuki, H
Hozumi, N
Ikeda, M
机构：
[1] Elect Power Ind, Cent Res Inst, Tokyo, Japan
[2] Japan Polyolefins Co, Kawasaki, Kanagawa, Japan
来源：
ELECTRICAL ENGINEERING IN JAPAN | 1999年 / 126卷 / 01期
关键词：
insulation material; partial discharge; high-temperature insulation; liquid crystal polymer;
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：
This paper describes the partial discharge (PD) characteristics and V-t characteristics of several insulating materials, such as liquid crystal polymer, epoxy resins, polyimide, and polyethylene-terephthalate (PET) with a needle-plane electrode system at elevated temperature. The life index n for an applied electric field less than 20 kV/mm is found to be about 9 and that for more than 20 kV/mm is found to be less than 4. The PD characteristics of the insulating materials varied. These V-t characteristics due to PD degradation were similar to those at room temperature except for the absolute life time. (C) 1998 Scripta Technica, Elects Eng Jpn, 126(1): 15-22, 1999.
引用
收藏
页码：15 / 22
页数：8
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