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变电站的自动化信号分为设备正常运行监视信号,设备异常、故障时所发的信号,继电保护及安全自动装置动作信号等等。设备正常运行监视信号有断路器位置信号、闸刀位置信号和变压器有载调压档位信号;而设备异常、故障时所发的信号有断路器SF6和弹簧未储能继电保护及安全自动
Substation automation signal is divided into the normal operation of the device monitoring signal, the device is abnormal, the signal sent by the fault, relay protection and safety automatic device action signal and so on. Equipment normal operation of monitoring signals have circuit breaker position signal, knife position signal and transformer on-load voltage signal; and equipment abnormalities, the signal sent by the fault circuit breaker SF6 and the spring is not stored energy protection and automatic safety