高压直流开断试验回路的研究  

AN INVESTIGATION OF SYNTHETIC TESTING CIRCUIT FOR H.V.D.C.INTERRUPTION

作　　者：孙广生[1] 王永荣[1] 冯荣琼 严萍[1] 

机构地区：[1]中国科学院电工研究所

出　　处：《电工电能新技术》1991年第3期1-7,共7页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金

摘　　要：文章描述了直流开断的试验回路装置及其试验结果。试验表明,简易高压直流断路器的气吹电弧具有负阻特性;转移回路参数对于实现自能式振荡熄弧开断影响显著,存在着一个与断路器电弧时间常数相适应的最佳转移振荡频率;简易气吹高压直流断路器的开断能力随气吹压力的增加而升高,燃弧时间随开断电流的加大而延长,文章还对高压直流开断试验回路的等价性做了进一步的分析和讨论。In this paper,the experimental equipment and results of synthetic testingcircuit for H.V.D.C.interruption are described.These results state clearlythat the arc's negative V-I characteristic of simple air-blast breaker made byourselves is necessary for interruption of H.V.D.C.circuit breaker with passivecommutation circuit;the parameters of passive commutation circuit giveobvious influence to oscillatory interrupting,and there exists an appropriateoscillatory frequency,which is suitable to the arc time constant of breakerfor current commutation;the interrupting capacity of simple air-blast brea-ker can be increased by raising the air-blast pressure,arc time would be leng-thened by enlarging the interrupting current.The further analysis and discus-sion about the equivalency of synthetic testing circuit for H.V.D.C.interrup-tion are conducted.

关 键 词：断路器 开断能力试验 高压直流 

分 类 号：TM561.06[电气工程—电器]