In the course of the research project, the T30FN torque transducer offering 10 kN•m nominal (rated) torque was used.
The F in the type name refers to the frequency-modulated signal transmission method. This means contactless measurement signal and energy supply of the rotor without any influence of the coupling factors, for example air gap variations.
The N in the type name designates integrated magnetic rotational speed measurement. The mechanical power as the generator input quantity can be determined from torque and rotational speed.
Fig. 2 shows the torque transducer installed on top of the mast.
Fig. 3 clearly shows the relationship between wind speed and torque . Torque increases with increasing wind force - while rotational speed remains unchanged. The result: Additional mechanical power is generated. However, this also means that the generator can produce more electrical power.