DIAGNOSING DEVICE FOR PLANT ABNORMALITY

摘要

PURPOSE:To perform diagnosis of the plant abnormality with high efficiency by excluding the data on a detector whose abnormality or a trouble are registered out of the diagnosis data when the trouble factor of an equipment is identified. CONSTITUTION:When a plant equipment has abnormality, an equipment diagnosing means 1 collates the signal of a plant state detector with the diagnosis data 2 to identify the factor of the abnormality. At the same time, a detector diagnosing means 3 identifies the detector having abnormality. This abnormal detector is stored in the data 2 and the data on this detector are invalidated. Then the diagnosis data excluding the invalidated data are used to identify the abnormality factor of the plant equipment. In such a way, the plant abnormality is diagnosed with high efficiency.