VFD Electrical Flucttuations Related Bearing Failure
CMS vibration measurement detected a critical problem on the 800 kW VFD electric motor, caused by electrical fluctuations.
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By the CMS vibration measuring, we detected critical problem on 800 kW VFD electric motor.
BSF- Presence of ball spin frequency with harmonics and cage rate sidebands as rolling element contacts inner race and outer race and travels at cage rate
BPFO- Presence of outer race frequency with harmonics
This fault caused by discharge of voltage generated in the rotor as a result of electrical fluctuations in VFD
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Category:
Vibration Case Study
Language:
English
Reading Time:
1 min
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Original Authors
Rafiq Abdurahmanov
Source:
https://www.lin...