非对称电流开断合成试验方法分析  

Analysis of Synthetic Testing Method for Asymmetrical Current Breaking

作　　者：吴盛刚[1] 孔祥军[1] 李向阳[1] 张振乾[1] 

机构地区：[1]中国电力科学研究院,北京100192

出　　处：《电工电气》2011年第10期49-53,共5页Electrotechnics Electric

摘　　要：阐述了进行非对称电流开断合成试验的必要性和特殊性。对相应国标中的有关规定作了详细的解读和分析,介绍了采用对称电流开断合成试验(T100s)回路及其简化法的局限性,分析了具有较大直流分量的短路电流在"大半波"或"小半波"熄弧后,工频恢复的变化规律,提出了两种等价性较高且构思原理新颖的试验线路,该试验线路特别适合于要求非对称度较大的场合。This paper expatiated on the necessity and specialty of asymmetrical current breaking, analyzing the related items about asymmetrical current breaking on the GB standard of synthetic testing. Introduction was made to the deficiency of using symmetrical current breaking synthetic testing （T100s） circuit or its shortcut method. Analysis was made to the transient recovery voltage of power frequency after arc extinguishing under the conditions of either major loop or minor loop with short-circuit current of larger direct component. This paper presented two kinds of equivalent, novel testing circuits, which are bears for more asymmetrical situations.

关 键 词：非对称电流 合成试验 试验条件 模拟试验 等价性 

分 类 号：TM561[电气工程—电器]