Technical data | |
Blade length | 58m |
Design type class | IEC IIIA |
Max. chord length | 4.38 m |
Pre-bending | 2.0 m |
Pre-cone angle/can be different | 0.5° |
Mass without T-Bolt | 13165kg |
Mass of T-bolt | appr.375 kg |
Radius center of mass | 17.59 m |
Design operation life | 20 years |
1st/2nd flapwise frequency | 0.59/1.75Hz |
1st/2nd edgewise frequency | 0.98/2.66Hz |
Operation temperature range | -30 ℃~+50℃ |
Survive temperature range | -45 ℃~+55℃ |
Material | GFRP |
Operation Parameter | |
Rated power | 3000kW |
Rotor Diameter | 119.3m |
Number of blades | 3 |
Power control | Pitchable |
Speed range | 6.5-13.3 rpm |
Rated tip speed | 82.8 m/s |
Rated rotor speed | 13.3 rpm |
Cut in wind speed (10 minutes mean) | 3 m/s |
Cut out wind speed (10 minutes mean) | 25 m/s |
Survive wind speed (3 seconds mean) | 52.5 m/s |
Optimal tip speed ratio | 9.3 |
Performance coefficient at TSR-opt | 0.49 |
Blade Connection | |
Principle | T-bolt |
Bolt hole circle diameter | 2300m |
Number, Size of tension bolts | 64xM36 10.9 |
Outer diameter of root | 2400mm |