Predictive Maintenance - Overview

Predictive Maintenance - Overview

1. Instrumentation

   • Sensors
   • Diagnostic Tools
     • e.g.: Spectrum Analysis

2. Historian

   • Exception and Compression

3. Analytics

   • Engineering Standards
     • Threshold Monitoring
       • Single variable
     • Visualization
       • Visual inspection of graphs
       • One or more variables
     • It does not need historical
   • Normal State History
     • Anomaly-Detection Models
       • Built using data from an asset operating in a normal state
     • At least 3 months of history without failures
   • Failure History
     • Failure Prediction Models
     • Survival Models
     • Applied in 20% of the equipments
     • At least 6 months of historical with failures