Method and control unit for an electric motor or generator
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United States of America Patent
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Aug 23, 2016
Grant Date -
Jul 2, 2015
app pub date -
Jun 11, 2013
filing date -
Jun 18, 2012
priority date (Note) -
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Abstract
A control unit for identifying a fault in an electric motor or generator, the control unit comprising means for measuring a value of a first parameter associated with the operation of the electric motor or generator; means for increasing a counter value if the difference between the measured first parameter value or a value derived from the measured value and a second value is greater than a first predetermined value; means for decreasing the counter value if the difference between the measured first parameter value and the second value is less than the first predetermined value; and means for generating a signal indicative of a fault if the counter value exceeds a second predetermined value.
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