变电站场地信号电缆抗干扰方法的分析

Analysis on signaling cable anti-interference against the field in substation

抗干扰问题对电力系统的安全运行十分重要。然而 ,由于认识上的原因 ,目前对信号传输过程中的抗干扰及接地问题尚未给予足够的重视。从理论上对变电站干扰的产生及防治措施进行了分析 ,并提出了具体的接线方式。针对现场应用中的实际问题 ,对各种屏蔽接地的要点加以说明和解释。

It is very important for safe operation of the electric power system to prevent from interference. But up to now it doesn't attract much attention to the interference-proof and earthing issues in the process of signal transmission. Therefore, in this paper, the causes of interference to substation and the corresponding measures are analyzed and a detailed wiring mode is proposed. Some cautions for earth shielding are described upon the practical application on site.