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Abstract

The present invention relates to a condition monitoring device and method for monitoring an electrical machine. The method comprises obtaining, at periodic instants, measurements from one or more sensors of the condition monitoring device, where each sensor is one of a magnetometer and an accelerometer. The method also comprises comparing, for one or more instants, amplitude data of the measurements with condition monitoring data, wherein the comparison is performed for the amplitude data in one or more axis and at one or more frequencies. The condition monitoring data comprises a relation between a plurality of parameters, a plurality of conditions and a plurality of frequencies. The method additionally comprises detecting a condition and at least one parameter associated with the condition, based on the comparison. According to the detection, the method comprises utilizing the measurements of the at least one parameter for determining a health condition of the electrical machine.

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First Claim