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Predicting Motor Failure
By Sheila Kennedy, contributing editor
PlantServices.com
Power signatures reveal potential problems with performance and reliability.
Electrical motor reliability and efficiency are directly influenced by the quality of the power supply. Power-quality disturbances such as transients, unbalance and harmonics can harm the windings and decrease motor performance. Voltage sags and interruptions can bring an industrial process to a halt. Voltage surges might induce equipment failure. The financial costs will be significant, particularly when downtime, production losses and premature equipment replacement or repairs are involved.
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