旋弧式SF_6断路器开断高压直流电流性能的实验研究  

An Experimental Investigation into the Use of an SF_6 Rotary Arc Circuit Breaker as an HVDC Switching Element

作　　者：张节容[1] G.R.Jones 黄建华[3] 马钊 

机构地区：[1]清华大学 [2]Unive rsity of Liverpool(UK) [3]重庆大学 [4]能源部电科院

出　　处：《高压电器》1990年第2期3-8,共6页High Voltage Apparatus

摘　　要：将一个未充电的电容器并联在断路器两端,当电容量为60μF、断路器的气体压力为0.3MPa时,旋弧式SF_6断路器能够开断的直流电流约为360A,燃弧时间约为25ms。增大旋弧灭弧室的磁场强度有可能使开断电流进一步提高。Use an uncharged capacito r in parallel with a circuit breaker,the capacitance is 60μF,a breaking direct current about 360A and arcing time about 25ms could be achieved with a gas pressure of 0.3MPa by a conventional SF6 rotary arc circuit breaker.Use a high magnetic field,some improvements for DC interrupting performance can be made in this kind of breaker.

关 键 词：SF6 断路器 电流性能 实验 

分 类 号：TM561.3[电气工程—电器]