DEVICE FOR MONITORING ABNORMAL OPERATION OF WATER-WHEEL GENERATOR

摘要

PURPOSE:To discover an abnormality at early time by detecting the vibration or sound of a water-wheel generator with a sensor, by analyzing the data thereof by frequencies and by comparing the sensors data at normal time with those analyzed by frequencies. CONSTITUTION:A sensor 10 measures the vibration or sound of a water-wheel generator. A frequency analyzing means 20 analyze the data obtd. by sensor 10 by frequencies. A deciding means 30 compares the normal value that the data of the sensor 10 at normal time are analyzed by frequencies with the monitor value that the data obtd. by the sensor 10 at the time of monitoring the water-wheel generator are analyzed by frequencies. And in case of the difference between the normal value and monitored value being more than the prescribed value it is decided that the water-wheel generator is abnormal. An alarm means 40 warns the abnormal state when the deciding means decides the abnormality.