50-250 MWFailure RiskGenerator Windings
Hidden Cooling Inefficiency Behind Generator Winding Temperature Rise
Issue
Abnormal behavior was detected in the generator windings temperature patterns. Possible root causes included clogging of the heat exchanger tubes, low or high coolant level or pressure, insulation damage between windings, malfunction in the cooling or lubrication system, or converter malfunction.
Action
A steady upward trend in generator winding temperatures prompted checks on the radiator and coolant system.
The site team carried out radiator cleaning, coolant replacement, and bearing cleaning. Kavaken’s continued monitoring showed only partial recovery, prompting another round of cleaning that finally stabilized the temperature levels and confirmed the issue was fully resolved.
Impact
160 MWh production loss prevented
About the Company
- ■50–250 MW portfolio size
- ■Customer since 2024