摘要
从影响冲击电流系统测量精度的因素出发,试验研究了系统接地点、转换装置的连接方式及系统自身的电磁干扰等对测量精度的影响。试验证明:采用单点接地、悬浮测量、减小高压引线与转换装置构成的闭合回路包围面积及电磁屏蔽、电源隔离、浪涌吸收等抗干扰措施可提高系统运行的可靠性及冲击信号测量的精度。
From the view of point of factors that influence measuring accuracy of impulse current system, the many problems which include the selection of voltage reference end , connecting manner of converting apparatus and self electromagnetic interference of impulse current system are studied. It is testified that adapting many techniques can improve the running reliability and measuring precision of impulse signals, this techniques comprise single ended, floating measurement and reducing the area surrounded by high voltage lead and converting apparatus of impulse signal, the all kinds of anti-interference steps are also included, such as electromagnetic shield, power supply isolation and surge absorbing etc.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2006年第3期12-15,共4页
High Voltage Engineering
关键词
冲击电流
悬浮测量
抗干扰
测试系统
测量误差
impulse current
floating measurement
antl-interference
measuring system
measuring error
