PD characteristics and mechanisms in artificial air-filled voids at room and liquid nitrogen temperatures

被引：9

作者：

Tsuru, S ^{[1
]}

Nakamura, M ^{[1
]}

Mine, T ^{[1
]}

Sakai, K ^{[1
]}

Suehiro, J ^{[1
]}

Hara, M ^{[1
]}

机构：

[1] Kyushu Univ, Dept El & Elect Syst Eng, Fukuoka 812, Japan

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 1999年 / 6卷 / 01期

关键词：

D O I：

10.1109/94.752008

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：

In this study, partial discharge (PD) characteristics in artificial air-filled voids at room and liquid nitrogen temperatures were investigated experimentally. It was found that minimum PD inception voltage at liquid nitrogen temperature (77 K) decreased with decrease in ambient temperature due to condensation of oxygen in the void. By observation of PD current pulses and light images, it was found that there were three modes of discharge: streamer, Townsend and glow-like discharges in PD at room and liquid nitrogen temperatures. Especially the mode at liquid nitrogen temperature changes markedly with the stress time.

引用

页码：43 / 50

页数：8

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