变电站监控系统中网卡的防雷措施研究

Study on lightning protection measures for network cards of substation supervisory control system

由于变电站监控系统的网卡常受雷击影响而损坏,对系统的正常工作造成严重影响,为此,结合网卡的电路原理,分析了雷击对网卡的影响作用,并提出了两种网卡防雷害的方案。

Since the network cards of supervisory control system in substations are often damaged by lightning strikes and thereby the system is out of normal operation, this paper analyzes the effect of lightning strikes on network cards on the basis of the circuit principle of network cards, and presents two lightning protection schemes for network cards.