Spectrum analysis revealed a combination of soft foot and rotor imbalance as the root causes.
Achieved 95% uptime after overhaul completion
Reduced annual maintenance expenses
Improved motor efficiency and power consumption
A 10 MW vertical motor exhibited high vibration levels, measuring 14 mm/s (Horizontal, NDE side) and 8 mm/s (Horizontal, DE side).
A 10 MW vertical motor exhibited high vibration levels, measuring 14 mm/s (Horizontal, NDE side) and 8 mm/s (Horizontal, DE side). Spectrum analysis revealed a combination of soft foot and rotor imbalance as the root causes.
Vibrovision team analyzed and corrected Soft foot was corrected, followed by in-situ dynamic balancing, which reduced vibration levels to 1.2 mm/s (NDE) and 0.7 mm/s (DE). The motor was restored to stable operation, ensuring enhanced reliability and reduced risk of failure.
Detailed motor condition assessment
Complete disassembly and component inspection
Rotor balancing and stator rewinding
Precision bearing installation
Updated protection and monitoring systems
The overhauled motors now operate at 95% reliability with significantly reduced maintenance costs. The plant has achieved consistent production schedules and improved energy efficiency.
The gaps were corrected, and in-situ dynamic balancing was subsequently performed. After rectification, the vibration levels were successfully reduced to 45 microns at the UGB and 38 microns at the LGB, restoring smooth and stable machine operation.
Read Case StudyThe machine was successfully restored to smooth operation, ensuring reliable and safe performance.
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