NOW THAT YOU HAVE INSPECTED ALL THE MECHANICAL SIDE EFFECTS THAT RESULT IN VIBRATION. THE ONLY POINT REMAINS IS THE SKEWING OF THE ROTOR SLOTS THAT MIGHT HAVE CAUSED AN UNBALANCED MAGNETISING FIELD TO RESULT INTO A DISRUPTIVE FORCE ACTING RADIALLY OUTWORD AT A SPECIFIC ANGLE .5 TO 2 TIMES THE...
your problem is that u have not consulted the proper person during recommissioning of your motor. i find it a problem of thermal overload. as such also the current in c phase is 196 that is 110% of your motor full load current approx. so the problem is overloading of your motor, that means that...
you can very well get the solution to your problem on the site www.ieee.org, or www.iee.org[india] and in it search for the paper presentation on the topic related to nonconventional sources of energy.