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Need vibration limits on large AC vertical motors
Tripping out should not cause an imbalance problem. If no phase history then try to start one. If level increases to .7 ips then I would recommend inspecting motor, coupling, and driven unit. What is unit driving and what are levels on the driven unit. Had a call out on a vertical motor one time...- tophat
- Post #4
- Forum: Electrical Engineering general discussion
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Need vibration limits on large AC vertical motors
bopsyseng, How or why is this motor tripping out? If motor 1x goes up every time this motor trips, then there must be an electical problem in the motor. Something must be moving or loose to allow an increase in vibration. Is the phase on the vibration stable or is it shifting with each trip? Tophat- tophat
- Post #2
- Forum: Electrical Engineering general discussion
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Compressor Bearing Vibration
Hi, In my experience as an analyst over 13 years, I believe your problem is probably eloectrical. One way to check is to cut the power while monitoring the motor to see if the sound and level suddenly quits. You should take some high resolution spectra to see if it is 2X running speed or...- tophat
- Post #4
- Forum: Mechanical Acoustics/Vibration engineering
