恒定磁场下水中交流电弧放电的特性  

Characteristics of AC Arc Discharge in Water with Constant Magnetic Field

作　　者：杨嘉祥[1] 张楠[1,2] 周恩平[1,3] 马凤莲[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,哈尔滨150080 [2]内蒙古电力公司鄂尔多斯电业局,鄂尔多斯017000 [3]辽宁红沿河核电站,大连116001

出　　处：《高电压技术》2011年第7期1760-1765,共6页High Voltage Engineering

基　　金：国家自然科学基金(50777014);高等学校博士学科点专项科研基金(20040214003)~~

摘　　要：为了测量磁偏弧的电压、电流、电子密度及电子温度等参数的特性,搭建了电压电流测量系统,采用不锈钢棒状电极,在其间隙处加以磁感应强度为0、45和100mT的横向磁场,将电压升至约1500V,使电极间形成磁偏弧,测量不同条件下磁偏弧的电压和电流,同时采用光谱法对磁偏弧的光信号进行测量。结果表明:随着横向磁场的增大,电弧电压和电流增加,并在过零点处波形畸变;在光谱扫描特性中,电子激发温度和密度随着外加磁感应强度的增加而减少。以上研究结果为进一步研究水中电弧特性提供了参考。The voltage, current, electronic density and electronic excitation temperature of arc blow were measured by using stainless steel electrode with 0 mT,45 mT and 100 mT transverse magnetic field between the gaps of elec trode with 1500 V. Magnetic arc blow was generated between electrodes, and its current and voltage under different conditions were measured. Signal is processed by spectrometry. The results indicate that： as magnetic intensity increases, the arc voltage and current will increase, but waveforms distort at zero crossing point; in the characteristic of scanning spectrometer, the electronic excitation temperature and density declines while magnetic field increases. The experimental results provide references for the further researches on arc discharge in water.

关 键 词：磁偏弧 交流电弧 横向磁场 水中放电 电子密度 电子温度 

分 类 号：TM501.2[电气工程—电器]