光学式SF_6断路器的泄漏检测技术  

Technology of Optical SF_6 Breaker Leakage Detection

作　　者：徐元哲[1] 刘县[1] 胡智慧[1] 周红晶[1] 

机构地区：[1]东北电力大学电气工程学院,吉林132012

出　　处：《高电压技术》2009年第2期250-254,共5页High Voltage Engineering

摘　　要：为了更加及时准确地检测SF6断路器的泄漏情况以及气室内SF6气体的体积分数,在分析了现有SF6断路器检漏技术的基础上,主要利用红外吸收光谱法,设计出了全光纤光学式SF6红外气体传感器及SF6气体体积分数检测系统。仿真及实验研究结果表明,SF6与空气的混合气体中的SF6气体的体积分数<10-3时,SF6气体体积分数与吸光度满足线性关系。所以可以应用该技术对装有SF6断路器的室内进行气体体积分数检测,而且该检测系统具有极其明显的技术优势和广泛的应用价值。On the basis of the present technologies of sulfur hexafluoride（SF6 ） leakage detection, in order to detect whether the SF6 breakers leak and the concentration of SF6 in the room timely and correctly, an fiber-optical SF6 infrared gas sensor and the system of SF6 gas leakage detection was designed by using the method of infrared absorption spectrum. Through the simulation and experiment, it is proved that the concentration of SF6 gas is linear to the absorption when the concentration of SF6 in mixed gas is below 10^-3. So this method can be used to detect the concentration of SF6 in the room where the SF6 breakers are installed.

关 键 词：红外吸收光谱 光学式 SF6断路器 红外气体传感器 谐波检测 泄漏检测 

分 类 号：TM561.3[电气工程—电器]