Arc temperature profile measurement and characteristic analysis on an SF6 high-voltage CB

被引：3

作者：

Bai, Su ^{[1
]}

Guan, Yonggang ^{[1
]}

Luo, Haiyun ^{[2
]}

Liu, Weidong ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Control & Simulat Power Syst & Gene, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Elect Engn, State Key Lab Gas Discharge & Plasma, Beijing 100084, Peoples R China

来源：

IET GENERATION TRANSMISSION & DISTRIBUTION | 2018年 / 12卷 / 12期

关键词：

temperature measurement; circuit breakers; SF6; insulation; interrupters; nozzles; arc temperature profile measurement; characteristic analysis; SF6 high-voltage CB; circuit breaker; optical fibres; spectrograph; short current interruption; nozzle; arc light; spectral line intensities; local thermal equilibrium system; two-line method; Abel inverse method; root mean square current; voltage; 252; kV; current 15 kA to 50 kA; Cu; PRESSURE;

D O I：

10.1049/iet-gtd.2017.1792

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：

The arc temperature profile in an interrupter, which determines the extinguishing characteristic of an SF6 circuit breaker (CB), is of interest to designers and developers. In this investigation, optical fibres and spectrograph were employed to measure the arc temperature profiles in a 252kV SF6 CB during short current interrupting. The temperature profiles of the upstream, throat, and downstream of the nozzle have been measured. The optical fibres can transfer the arc light from the measuring points in the nozzle to the spectrograph. Moreover, the spectral line intensities of copper (Cu) 510.5, Cu 515.3, and Cu 521.8nm were obtained by the spectrograph. The condition in CB can be treated as a local thermal equilibrium system, and the temperature profiles can be calculated by two-line method and Abel inverse method. The arc temperature profiles of the interrupter under 15-50kA root mean square current have been analysed through the method established in this investigation.

引用

页码：3046 / 3051

页数：6

共 14 条

[1]

Airey D.R., 1974, P IEE GAS DISCHARGE, P512

[2] TIME-RESOLVED RADIAL TEMPERATURE PROFILES FOR 10 KA SF6 ARCS [J].