用热电偶测量灭弧室内SF_6热气体温度探究  

Study in Measuring the Hot Flow Gas Temperature in Arc-extiguishing Chamber of SF Puffer Circuit Breaker by Using Thermocouple

作　　者：贾志鸿[1] 雷颖[1] 郭文元[2] 

机构地区：[1]西安交通大学,710049 [2]上海铁道大学,200331

出　　处：《高压电器》1998年第1期19-21,33,共4页High Voltage Apparatus

摘　　要：应用控制论原理,求得热电偶传递函数后,利用实测得的热电偶输出电压曲线,分段拟合及拉氏反变换处理,可推算出被测气体的实际温度。此外,依据传热学中相似准则介绍了处在SF_6强迫对流中的热电偶时间常数的计算方法。Based on control principles, the output voltage curve can be sec-tionalized fitting and inverse Laplace transformed, so we can calculate the real temperature of hot flow gas after getting the transfer function of thermocouple. According to the similar rule in heat transfer theory,we introduce the calculating method of time content of thermocouple under the forced flow condition.

关 键 词：热电偶 灭弧室 六氟化硫 温度 热气体 

分 类 号：TM561.5[电气工程—电器]