Health Score - Mesa Associates, Inc.

Vibration Data Directly Correlates to Generator Health Score Reduction

Vibration data from the Alert generated on March 4, 2023, shows the initiation of the defect, shown in the green box below. The vibration anomaly increased the amplitude on one of the vibration probes. For this machine, amplitudes below 6 Mils (0.006 inches displacement, peak-to-peak) are considered good. The Acceptable amplitude region is from 6 […]

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Health Score Impact Factors

Health Score Impact Factors (anomalies) can appear at the facility, unit, hierarchy group, input, and custom Asset Management levels (in this case, Mesa designed a custom anomaly detection called ‘startup type’). For example, at the unit level, both the turbine and generator have reduced health scores (51%) in the image. Anomalies at the various hierarchical

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Machine Learning for Asset Health Tracking

Hydro Turbines are complex machines with multiple transient conditions at start-up. Advanced Pattern Recognition is key in determining the roles that load, net head, cooling water temperature, and air cooler fouling play in day-to-day operations. Calculating the Generator’s Asset Health Score (AHS) for trending helps users determine the overall asset’s health over time. In one

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