FMEA for Generators

FMEA for generators starts by listing all functions, then identifying how each function can fail, what causes each failure mode, and what the effects would be on safety, operations, and maintenance. Each mode receives severity, occurrence, and detection ratings that multiply into a risk priority number. Modes exceeding the RPN threshold receive specific mitigation actions with assigned owners.

The FMEA for generators should be reviewed after any failure that reveals a previously unidentified failure mode, after design modifications to the stator core and windings, rotor, exciter, bearings, and hydrogen seal system, and at minimum annually as part of the reliability program review. Operating experience and new condition monitoring data may reveal that occurrence or detection ratings need adjustment, changing the prioritization of mitigation actions.

OEM nameplate data, the unit's failure and repair history from the CMMS, current operating conditions (load, speed, temperature), and lubricant type if applicable. The baseline measurement itself runs about 20 minutes per asset for a full FMEA reading. Without baseline data, the first three months of route trending serve as a baseline window — anomalies become detectable around month 4.

Yes. FMEA measurements use severity × occurrence × detection (RPN) which capture at the bearing housing, terminal box, or sampling point without disrupting operation. The Industrial Generators stay online during the route. Only deep diagnostic work or repairs that follow from findings require taking the equipment offline.