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  • Users: JLLCUR
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  1. JLLCUR

    Side Band Frequency on 450 KW AC Electric motor

    We collected some vibration readings on a solorun of a 450 KW 50Hz 2 pole 3 phase refurbished AC Electric Motor with a magnetic Accelerometer, and found the following spectra. Mutiples of running speed 2996cpm up to 5x with side bands on all the multiples of 225cpm. At first we suspected cracked...

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