典型文献
Experimental and Theoretical Studies of C3F7CN/CO2 Mixture Decomposition Under Overheating Fault
文献摘要：
Heptafluoroisobutyrontrile(C3F7CN)performs well in dielectric properties and environmental protection,which has the potential to replace SF6 gas.The decomposition char-acteristics of C3F7CN mixture under fault conditions directly affect the possibility of its replacement for SF6 gas.However,the number of studies on the decomposition characteristics of C3F7CN mixture under overheating fault is less.In this paper,the decomposition characteristics of C3F7CN/CO2 mixture under an overheating fault are studied by gas chromatography-mass spectrometry(GC/MS)and quantum chemical calculations.By-products CO,C3F6 and HF are detected at 200° C.At 550° C,the C3F7CN molecule begins to decompose and produces CHF3,C2F4,CF3CN and CNCN.Moreover,the results of GC/MS show that the insulation medium C3F7CN contains an impurity,which is C3HF7(HFC-227ea).Combined with the results of GC/MS and quantum chemistry calculations,it can be concluded that the decomposition by-product C3F6 at 200℃mainly comes from the decomposition of C3HF7.C3HF7 reduces the decomposition temperature of the C3F7CN/CO2 mixture.Therefore,it is very important to improve the purity of the insulation medium C3F7CN.
文献关键词：
中图分类号：
作者姓名：
Mingyue Zhao;Dong Han;Weikang Zhao;Zhenrui Zhou;Guoqiang Zhang
作者机构：
Institute of Electrical Engineering,Chinese Academy of Sciences,and University of Chinese Academy of Sciences,Beijing 100190,China
文献出处：
引用格式：
[1]Mingyue Zhao;Dong Han;Weikang Zhao;Zhenrui Zhou;Guoqiang Zhang-.Experimental and Theoretical Studies of C3F7CN/CO2 Mixture Decomposition Under Overheating Fault)[J].中国电机工程学会电力与能源系统学报（英文版）,2022(03):941-951
A类：
C3F7CN,Overheating,Heptafluoroisobutyrontrile,C3F6,C2F4,CF3CN,CNCN,C3HF7
B类：
Experimental,Theoretical,Studies,Mixture,Decomposition,Under,Fault,performs,well,dielectric,properties,environmental,protection,which,has,potential,SF6,gas,decomposition,mixture,under,fault,conditions,directly,affect,possibility,its,replacement,However,number,studies,characteristics,overheating,less,In,this,paper,are,studied,by,chromatography,mass,spectrometry,quantum,chemical,calculations,By,products,detected,At,molecule,begins,decompose,produces,CHF3,Moreover,results,show,that,insulation,medium,contains,impurity,HFC,227ea,Combined,chemistry,can,concluded,mainly,comes,from,reduces,temperature,Therefore,very,important,improve
AB值：
0.432587
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