Motor condition and performance analyzer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Oct 23, 2001
Issued Date -
N/A
app pub date -
Jun 6, 2000
filing date -
May 20, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of detecting broken rotor bars including sensing currents applied to the motor, converting the senses signals to digital data signals, and storing the digital data signals. A processor evaluates the digital data to provide a current signal spectrum at various selected sidebands. Sideband peaks having an amplitude within a predetermined value are identified, indicating potential motor problems or developing problems, including winding faults and broken rotor bars. Advanced signal processing techniques are used to further evaluate stored data and to provide trending information.
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