Predicting Motor Failure

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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About the Author

Sheila Kennedy

contributing editor

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