Diagnostic Protocol: 135 MW Heavy Machinery & Turbogenerators 

To ensure absolute reliability and prevent catastrophic failure, our diagnostic approach for 135 MW generators follows a strict, multi-phase testing regiment 

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The Challenge: > A critical 135 MW turbogenerator was experiencing unexplained thermal anomalies and slight vibration variations under full load. A highly accurate, non-invasive diagnostic profile was required during a short maintenance window to determine if a full rotor pull was necessary.

The Solution: > We deployed a comprehensive diagnostic suite, focusing heavily on dynamic testing. We performed RSO and AC Impedance testing on the rotor to rule out dynamic shorts. For the stator, we executed advanced Partial Discharge analysis and Surge Comparison testing to evaluate the remaining lifespan of the ground wall insulation. We also utilized EL CID testing to verify core lamination integrity.

The Result: > The testing successfully pinpointed a minor localized degradation in the stator insulation, completely ruling out rotor faults. We provided a targeted repair plan that avoided a costly and unnecessary full rotor extraction, saving the client significant downtime and capital expenditure.