摘要
针对气体放电管(gas discharge tube,GDT)在雷电阻尼振荡波冲击下击穿性能的问题,首先对气体间隙在交流电压作用下放电过程进行理论分析,采用雷电阻尼振荡波发生器对不同直流放电电压的气体放电管进行冲击试验,得出:随着雷电阻尼振荡波冲击电压的升高,气体放电管的放电电流不断增大;冲击过程中,残压先上升到大于直流放电电压,再下降并保持稳定,直至停止放电;气体放电管的吸收能量与冲击电压呈正相关;气体放电管的内阻随着冲击电压的增大而减小。为研究气体放电管在实际雷电中的应用具有一定的参考价值。
For the issue of the breakdown performance of gas discharge tube （Gl）T）under Impact ot the lightning oscillation damping wave, the gas gap discharges process under AC voltage is theoretical analyzed, impact test are carried out on gas discharge tubes with different DC discharge voltage by using lightning damped oscillation generator, the result is that： the discharge current grows with the increase of lightning oscillation damping wave voltage; the residual voltage increases until it is bigger than the DC discharge voltage and then decreases and keeps steady in impact process; absorbed energy of GDT are positively correlated impulse voltage; The internal resistance of GDT decreases with the increase of the impulse voltage. It has significance in the practical application of GDT in lightning protection
出处
《电瓷避雷器》
CAS
北大核心
2016年第1期44-48,共5页
Insulators and Surge Arresters
基金
973国家重点基础研究计划(批准号:2014CB441405)
关键词
雷电阻尼振荡波
气体放电管
残压
能量
内阻
lightning oscillation damping wave
gas discharge tube
residual voltage
energy
internalresistance
