A power plant uses electrical signature analysis for performance assessment.
In this All Test-Pro case study, a power plant used Electrical Signature Analysis (ESA) to investigate performance issues in aging water pump motors by measuring voltage and current signals to assess both electrical and mechanical conditions of the entire system.
The analysis revealed that the motors themselves were functioning properly, but identified turbulence in the water flow as the root cause of poor pump performance—something other diagnostic methods had missed.
Article Highlights:
- Pump performance issues identified in aging system
- ESA used to assess full motor and pump condition
- Motors found electrically and mechanically sound
- Turbulence detected as root cause of poor performance
- Issue was missed by other diagnostic methods
- ESA enabled targeted corrective action
- Highlights value of predictive maintenance and combined diagnostics
Key Takeaway:
Electrical Signature Analysis (ESA) can detect hidden performance issues across the entire motor-driven system—even when both electrical and mechanical components appear healthy—making it a powerful tool for identifying root causes like flow turbulence and improving predictive maintenance.
