Abnormal noise from the motor operation
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An ABB motor is producing intermittent abnormal noises during operation, but all its operational parameters are normal. What could be the possible causes? ”
Since there is a significant difference between the described abnormal noises and an individual’s actual perception, it is not possible to provide a specific analysis of the causes. However, considerations can be made from the following aspects: 1) alignment of the coupling, 2) sounds emitted by the coupling diaphragm
First, it is necessary to determine whether the irregular noises stem from the motor itself. If so, they could be mechanical sounds generated by the inner or outer bearings of the motor, or electromagnetic noises resulting from a bent rotor that leads to uneven wear between the stator and rotor