Lifetime characteristics of nanocomposite enameled wire under surge voltage application

被引：25

作者：

Hayakawa, Naoki ^{[1
]}

Okubo, Hitoshi ^{[1
]}

机构：

[1] Nagoya Univ, Dept Elect Engn & Comp Sci, EcoTopia Sci Inst, Nagoya, Aichi 4648601, Japan

来源：

IEEE ELECTRICAL INSULATION MAGAZINE | 2008年 / 24卷 / 02期

关键词：

nanofiller; enameled wire; repetitive surges; partial discharge (PD); time to breakdown;

D O I：

10.1109/MEI.2008.4473051

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：

V-N properties show longer times to breakdown for nanocomposite enameled wires and the PD resistance increases with increasing nanofiller concentration as showed in a recent experimental setup. In the experiment, PD inception, propagation and breakdown (BD) characteristics of nanocomposite and conventional enameled wires under surge voltage application were investigated. An inverter surge-generation circuit consisting of direct current high voltage has been utilized along with supply, high-voltage semiconductor switch, pulse generator and coaxial cable. Meanwhile, the partial discharge (PD) properties from PD inception to breakdown (BD) were measured using twisted pair samples under repetitive surge-voltage application. It was showed that V-N characteristics exhibited longer times to breakdown for nanocomposite enameled wires and the PD resistance increased with the increasing nanofiller concentration. In addition, the remaining enamel thickness, in the case of conventional enameled wires, decreased linearly with the time of voltage application.

引用

页码：22 / 27

页数：6

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