Analysis and Treatment of Abnormal Vibration of Generator of 1000MW Units
With the rapid development of large-capacity and high-parameter thermal power units,the number of non-conventional vibration faults is increasing.The shaft vibration of No.9 bearing of No.2 unit in a power plant rose up to 90 μm(compound vibration),which exceeded the alarm value by 83 μm,influence on the safe operation of the unit through No.2 unit to carry out vibration testing,analysis of No.9 bearing vibration causes,and gives the treatment plan.The vibration of No.9 bearing is reduced to the qualified range after the dynamic balance.It provides a reference for the analysis of similar unit vibration faults in the future.
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