The production of wind-powered energy is harvested by wind turbines installed in locations where winds are strong but difficult to access. Detecting minor severity faults allows for the scheduling of defective component replacement during planned maintenance dates, before the fault severity increases. This significantly reduces maintenance costs. A key component of wind turbines (WT) is the drivetrain (right-hand side figure), which transfers mechanical energy from the rotating blades to an electric energy generator. This gearbox system is quite exposed to faults, such as damaged gears and broken or worn teeth. 
The operation of the drivetrain can be monitored by several sensors, such as: 

    • 3 phase electric current sensor
    • 3D accelerometer as vibration sensors 
    • acoustic emission sensors
    • sound sensors 

For this challenge only vibration sensors are considered.