General data

• Manufacturer: NEPC (Inde)
• Model: 250/31
• Rated power: 250 kW
• Rotor diameter: 31 m
• No more available
• Wind class: IEC IIIa
• Offshore model: no
• Swept area: 755 m²
• Specific area: 3.02 m²/kW
• Number of blades: 3
• Power control: Stall

Weights

• Nacelle: 8,5 tons
• Tower: 14 - 30 tons
• Rotor + hub: 5,5 tons
• Total: 28 - 44 tons

Rotor

• Maximum rotor speed: 41,2 rd/min
• Cut-in wind speed: 3,5 m/s
• Rated wind speed: 13,5 m/s
• Cut-off wind speed: 25 m/s

Gear box

• Gear box: yes
• Stages: 2
• Gear ratio: 36,6

Generator

• Type: ASYNC
• Number: 1
• Maximum speed: 1500 rounds/minute
• Voltage: 415 V

Tower

• Minimum hub height: 30 m
• Maximum hub height: 45 m