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Analysis of Fault Signatures for the Diagnosis of Induction Motors fed by Voltage Source Inverters using ANOVA and Additive Models

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Figure

Fig. 1.  Normalized PSD around main harmonic. Motor M1 with a full-broken bar. Supplies UT and TE
Fig. 3 shows the boxplots of the amplitude of the signature faults around the main harmonic for both tested motors, the four  condition states including the three different supplies for each motor and all motor operating conditions
Fig. 5.  Boxplots of the amplitude of the broken bar signature fault for LSH (left) and USH (right) around the seventh harmonic for both motors and four  condition states
Fig. 6.  Boxplot of the amplitude of the broken bar signature fault for LSH of the first sideband for both motors, six different supplies and four condition states
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