摘要
利用自行研制的弓网电弧试验系统,测试了弓网电弧的电气参量。通过对弓网电弧的电气特征试验分析发现,弓网系统燃弧时,电弧电压、电流存在着较大的直流分量,谐波成分丰富;起弧瞬间电流具有较大的过冲,弓网两端电压迅速下降;在电弧稳定燃烧时,电弧电压值相对较稳定,电流呈正弦规律变化。
Perfect sliding electrical contact between pantograph and catenary can guarantee the safety and stability of locomotive. Pantograph arcing was one of the main factors of sliding electrical contact performance in electrified railway system. The main reason of pantograph arcing was the varying gap due to the mechanical vibration between pantograph and eatenary. So it was important to study of electrical characteristics on pantograph arcing. In this paper, pantograph arcing experiments are carried out using a novel test apparatus of pantograph arcing, the electrical characteristics are analyzed ; arcing voltage and current have a lot of DC and harmonic component. Arcing current has large overshoot when the pantograph arcing start burning, then that according to regular changes in the sinusoidal, arcing voltage has rapid decline when the pantograph arcing start burning, then that was slight change.
出处
《低压电器》
2012年第6期5-10,27,共7页
Low Voltage Apparatus
基金
教育部新世纪优秀人才基金(NCET-07-0718)
教育部博士点新教师基金项目(200806131015)
国家973计划资助项目(2011CB111005)
关键词
电气化铁路牵引供电系统
弓网电弧
电弧电压
电弧电流
electrified railway traction power supply system
pantograph arcing
arcing voltage
arcing current
