摘要
由于SF6气体在超低温下产生部分液化,使得SF6开关设备内的SF6气体密度下降,降低了SF6开关设备的开断能力和绝缘水平,无法保证SF6开关设备的可靠运行。为此,本文作者提出了采用电加热装置对SF6开关设备中的SF6气体进行加热,使SF6气体的温度可以始终高于SF6气体液化温度的解决方案。同时,本文对超低温环境下的其他解决方案也进行了分析比较。
Due to liquefaction of SF6 gas under super low temperature, the SF6 gas density within the SF6 switch equipment comes down, reduced the breaking capacity of SF6 switehgear and insulation level, unable to ensure the reliable operation of SF6 switch device. For this purpose, the writers made use of SF6 in electric heating device on the SF6 switchgear gas heating temperature can be always higher than the SF6 gas liquefaction of SF6 gas temperature of the solution. At the same time, this article on ultra-low temperature environment of the other solutions also analyzed.
出处
《电气技术》
2012年第4期53-56,共4页
Electrical Engineering
关键词
六氟化硫
超低温
开关设备
电加热
混合气体
SF6
super low temperature
switchgear
electric heating
gas mixtures
