摘要
谐振法测量电容电流在自动消弧线圈中得到广泛的应用,但存在测量误差偏大的问题。由此推导出连续无级可调消弧线圈谐振测量法的改进公式;推导出有级可调消弧线圈谐振法的一般公式。试验和现场运行表明,基于改进的谐振法所研制的自动消弧线圈电容电流测量精度明显提高,具有推广应用的价值。
The resonance method to measure capacitive current is applied to automatic arc-suppression coils widely. But it has a little big measurement error at the same time. The corrective formula of the resonance method is deduced for arc-suppression coils with continuously adjusting inductance, and common formula of resonance method is also deduced for arc-suppression coil with discontinuously adjusting inductance. Experimental result and scene operation show that measurement accuracy of arc-suppression coils developed with the new resonance method is improved obviously and the method is worth using widely.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第15期128-130,134,共4页
Power System Protection and Control
关键词
消弧线圈
电容电流
谐振
测量方法
arc-suppression coil
capacitive current
resonance
measurement method
