摘要
本文基于电子线路的多级过电压保护装置的设计原则 ,提出了把低通滤波器件和限幅器件组合在一起的组合防雷系统 ,并采用电磁暂态计算程序 EMTP分析了低通滤波器元件参数对保护性能的影响和其幅频特性 .同时 ,本文还提出了过电压冲击自动报警与计数系统设计的可行性方案 .
On the basis of the divising principles of a multi step overvoltage protection of electronic circuit,a protection system combined Low Pass Filter(LPF) with voltage limited devices is analyzed in this paper. The effects of the parameters of the elements of LPF on the overvoltage protection function and its range freqency characteristic are analyzed by electro magnetic transient program. Furthermore, an automatic alarming and counting system of overvoltage pulse is suggested.
出处
《物理与工程》
2001年第1期50-55,共6页
Physics and Engineering
