高电压技术2017，Vol.43Issue(5)：1550-1557,8.DOI:10.13336/j.1003-6520.hve.20170428021
多间隙纵吹灭弧系统灭弧性能
Arc-extinguishing Performance of Multi Gap Longitudinal Arc-extinguishing System
谢建华 1张培勇 1郭峰 1郭伟2
作者信息
- 1. 福建省电力勘测设计院,福州350003
- 2. 广东电网责任有限公司汕头供电局,汕头515800
- 折叠
摘要
Abstract
In order to analyze the effect of multi-gap longitudinal arc-extinguishing system (MGS),we established a longitudinal airflow coupled arc mathematical model.And by the model,we analyzed and calculated the arc-extinguishing pipe temperature,electric current,pressure,and other parameters.In order to verify the correctness of the calculation resuits and the continuous flow quenching efficiency of the system,we selected the power frequency current arc with an amplitude of 2 kA and the arc extinguishing device with a number of 20 arc extinguishing pipes to test the arc suppression device.The results show that the superposition of arc column energy and self-expanding arc-extinguishing airflow have a deep effect on the transient development of power frequency freewheeling arc,the arc current decays to a minimum of 10 A at about 50 μs.The results show that the MGS can impel power frequency arc to basically complete attenuation in 130 μts,and the reignition rate is almost zero,which proves the validity and reliability of the self-energized arc-extinguishing.关键词
多间隙纵吹灭弧系统/灭弧效果/膨胀气流/灭弧管道/工频电弧/重燃率Key words
multi gap longitudinal arc-extinguishing system/arc-extinguishing effect/expansion flow/arc-extinguishing pipeline/power frequency arc/reignition rate引用本文复制引用
谢建华,张培勇,郭峰,郭伟..多间隙纵吹灭弧系统灭弧性能[J].高电压技术,2017,43(5):1550-1557,8.
