Research method on quickly distinguishing generator stator bar and temperature measuring elements fault
In response to a 350 MW turbine generator set stator winding wire rod burning accident,combined with the structure of the generator stator winding and the temperature measurement system layout of the accident data to comprehensively analyze.By utilizing the corresponding relationship between the temperature measurement points of the generator stator coil and the water outlet temperature measurement points and the wire rod,and comparing the trends of the related stator coil temperature and water outlet temperature changes,the method of quickly distinguishing the faults of generator stator bar and temperature measuring element is summarized.Compared with the measurement,comparison and analysis of the drawing,the method can save a lot of fault diagnosis time to determine whether the resistance value between the leads of the temperature measuring element corresponding to the abnormal temperature and whether the temperature transmission system is normal.
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