BLADE ANGLE DEFECT AND CONSEQUENCES

• WHAT IS A BLADE ANGLE DEFECT:

A relative blade angle difference of more than 0.6° is usually considered as a defect (based on the "guideline for certification of wind turbines of the Germaniscer Lloyd 2010").

• CONSEQUENCES:

- PRODUCTION LOSSES

 

- LIFESPAN REDUCTION

An aerodynamical imbalance due to a blade angle difference of 1.5° can divide some wind turbine component lifespan by 3 or more.