Influence of impulse corona discharge on discharge time lag of a surge arrester with a spark gap

被引：0

作者：

Sakoda, Tatsuyta ^{[1
]}

Kubo, Katsutaka ^{[2
]}

Mizutani, Manabu ^{[2
]}

Chiba, Tomoki ^{[2
]}

Kasuga, Yasunori ^{[2
]}

Fukano, Takato ^{[2
]}

机构：

[1] Univ Miyazaki, Miyazaki, Japan

[2] Toshiba Energy Syst & Solut Corp, Kawasaki 2100862, Japan

来源：

JOURNAL OF ELECTROSTATICS | 2023年 / 121卷

关键词：

Arrester; Spark gap; Discharge time lag; Impulse corona discharge; Triple junction point; PERFORMANCE; AIR;

D O I：

10.1016/j.elstat.2022.103783

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：

ZnO surge arrester with a spark gap is used for reducing electrical failures in power distribution systems of Japan. The high responsiveness, the low residual voltage, and the stable operating voltage are required for the arresters. However, the discharge time lag generally occurs in a spark gap. In this study, measurements of V -t characteristics and observations of optical emissions from impulse corona discharges generated at a newly designed small step edge on an inclined plane of each electrode were carried out. The small step edge made the discharge time lag and the standard deviation small. Based on the results, we indicated that the impulse corona discharge improves the discharge time lag of the sparkover.

引用

页数：7

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