A vibration analysis on an electric motor shows s
A vibration analysis on an electric motor shows significant radial vibrations at 1x, 2x, 3x, 4x the running speed of the motor. A particularly predominant peak shows near 12,000 cpm. If the motor has 4 rotor bars and runs at 2940rpm what would you suspect the problem to be and how would you confirm your suspicions?

$10.00ANSWERTutor has posted answer for $10.00. See answer's preview
*** frequencies of *** load ******* magnetic forces ******* to *** ****** ***** and **** ***** *** ******* ********* of *** ***** **** **** side bands ** * or ******* ** ** ** *** ** Hz ***** f ** *** **** ********* * ******** ***** ** ********* ** the ******* frequency ** the ***** slot ***** ***** ** ***** speed ** revolution *** ****** ***** *** number of ***** ***** ** ***** by
***
* (RPM * Nr)/60 *
*****
x ****** = 196
***
**** frequency loadrelated
********
********* at ** near ***** **** ******* frequency ** ********* ** *** motor ****** **** current is ******* **** *** ***** **** ***** load *** ********* ** this vibration ****** with **** ********** as **** ********* *** ********** ******* ** the **** ******* * ******** ***** around *** bars that ******* ** ********** ***** ** *** ****** teethThese ****** and tangential ****** ***** *** ******* to *** ****** ***** create ********* ** the ****** **** *** *****