Technical data |
|
Blade length | 90m |
Design type class | IEC S |
Max. chord length | 4.6m |
Pre-bending | 6.0m |
Pre-cone angle/can be different | 0° |
Mass without T-Bolt | 23t |
Mass of T-bolt | 514kg |
Design operation life | 20years |
Material | E/H-glass reinforced Epoxy |
Operation Parameter |
|
Rated power | 4.x MW |
Rotor Diameter | 183m |
Number of blades | 3 |
Power control | Pitchable & Variable-speed |
Speed range | 5.5-10.5rpm |
Rated tip speed | 89.2m/s |
Rated rotor speed | 9.25rpm |
Optimal tip speed ratio | 12.2 |
Performance coefficient at TSR-opt | 0.48 |
Blade Connection |
|
Principle | Insert |
Bolt hole circle diameter | 2800mm |
Number, Size of tension bolts | 112xM36X4.0 10.9 |
Outer diameter of root | 2900mm |