Effect of a floating conductor on discharge characteristics of a long air gap under switching impulse

被引：15

作者：

Gao, Jiachen ^{[1
,2
]}

Wang, Linong ^{[1
]}

Wu, Shaocheng ^{[1
]}

Xie, Cheng ^{[1
]}

Tan, Qipeng ^{[1
]}

Ma, Guoqiang ^{[1
]}

Tueraili, Hayinaer ^{[1
]}

Song, Bin ^{[1
]}

机构：

[1] Wuhan Univ, Sch Elect Engn & Automat, Wuhan 430072, Peoples R China

[2] Univ Bologna, Dept Elect Elect & Informat Engn Guglielmo Marcon, I-40136 Bologna, Italy

来源：

JOURNAL OF ELECTROSTATICS | 2021年 / 114卷

关键词：

Discharge characteristics; Floating conductor; Live working; Long air gap; BREAKDOWN;

D O I：

10.1016/j.elstat.2021.103629

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：

Live working is an important means for the maintenance of transmission lines. During the process of entering the equipotential, the live working lineman is a floating conductor, which affects the discharge characteristics of the air gap of the transmission line. In order to improve the safety protection of linemen, the effect of a floating conductor on discharge characteristics of a long air gap under positive switching impulse was investigated. In this paper, an experiment platform of long air gaps with floating conductors was built, and the breakdown voltage and discharge progress were studied. The experimental results showed the effect of the rod-shaped electrodes and the electrodes with rod-shaped protrusions on the breakdown voltage of the air gaps, as well as the discharge process of the air gaps when the floating electrodes were at different positions. The research conclusions can provide a theoretical basis for discharge mechanism and live working.

引用

页数：6

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