银盘水电厂自动化信号回路干扰引起信号故障现象的反思

摘要

针对银盘水电厂自动化信号回路两起信号故障现象，分析了故障产生的原因，从理论上对故障原因进行了较深入的探讨，提出了正确接地、硬件隔离、软件抗干扰等消除干扰的措施。%Two signal failures in the automatic signal circuit in Yinpan Hydropower Station are investigated and the pos-sible interference causes are discussed theoretically .Some recommendation of prevention measurements are proposed , including the correct grounding , hardware insulation and software anti-interference, etc.