Deformation of the fan blades on the rotor of the hydrogenerator will have the following effects on the generator.
1. The motor cooling fan blades are broken, and the motor cannot dissipate effective heat. The temperature rise increases, the motor becomes hot, and the insulation aging in the stator is accelerated.
2. If the fan blades are partially damaged, it will cause unbalanced operation, the motor will vibrate, and the stability of the machine base will be damaged.