General data

• Manufacturer: Hewind (Chine)
• Model: HW77 1.5 MW
• Product page
• Rated power: 1,500 kW
• Rotor diameter: 77.13 m
• Available model
• Wind class: IEC IIa+
• Offshore model: no
• Swept area: 4,673 m²
• Specific area: 3.12 m²/kW
• Number of blades: 3
• Power control: Pitch

Weights

• Nacelle: 59 tons
• Tower: 105 - 117 tons
• Rotor + hub: 31 tons
• Total: 226 - 238 tons

Rotor

• Minimum rotor speed: 10 rd/min
• Maximum rotor speed: 19,5 rd/min
• Cut-in wind speed: 3 m/s
• Rated wind speed: 12 m/s
• Cut-off wind speed: 25 m/s

Gear box

• Gear box: yes
• Stages: 3
• Gear ratio: 104

Generator

• Type: DFIG
• Voltage: 690 V

Tower

• Minimum hub height: 61,4 m
• Maximum hub height: 70 m