Early warning on developing faults in medium-sized gas turbines prevents costly damages and failures. A system has been designed to detect developing faults related to combustion, performance and vibration. The early warning detection threshold is well below the limits set in the control system to detect abnormal behaviour. Experiences from designing the early warning system are presented in this paper. Keywords: Detection, Gas turbine, Data-driven models, Experiences, Vibration, Combustion, Performance.
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