I think what i'll need to do is perform some test on some 60 Hz motors with and without the VFD to compare results. I was hoping that some one might have run into this before and been able to provide some validation in or out of favor. Thanks again for all the posts.
Sorry I omitted some useful information. The VFD was not specifically sized for this motor. Typically I would agree with the overload remark. However, this is a test lab VFD with a current rating output up to 260 amps. The test was being performed to identify the locked rotor current so we could...
I had to do a locked rotor test but unfortunately i was also using a VFD. The application was 415 V, 50Hz and the hp was 29.72. Locked rotor current recorded as the drive attained 50 Hz was 125A. Seemed low and due to the drive it wasn't a true instantaneous reading. Any suggestions?
