Technical Data

Main data

 

Hub height

18.0 m

 

Rotor diameter

12.9 m

 

Rated power AC

6.5 kW

 

Cut-in wind speed

2.0 m/s

 

Design wind speed

6.0 m/s

 

Cut-out wind speed

14.0 m/s

 

Noise emission: Assessment level according to LSV at 50 m distance (LSV = Swiss Noise Control Act)

< 30 dBA

 

 


Rotor

 

 

Diameter

12.9 m

Rotor area (swept)

129 m2

Ratio of rated output to rotor area (swept)

50 W/m2

Number of blades

3

Arrangement

upwind machine

Rotary speed

variable 20 – 66 rpm

Blade tip speed

max. 44 m/s

 

   
Tower

 

Hub height

18.0 m

 

Design

Tubular tower, no guying

 

Material

Concrete or steel

 

 

   
Generator

 

 

Design

permanently excited synchronous generator

Rotary speed

240 - 792 rpm

Grid connection

via inverter 3 x 400 V

 

  
Power transmission

 

 

Design

Belt drive

Speed-increasing ratio

1 : 12

 

   
Control and safety systems

 

Rotary speed control

pitch control

 

Power limitation

pitch control

 

Yaw mechanism

active (azimuth angle)

 

Braking system 1

electric

 

Braking system 2 (emergency stopping)

mechanical

 

Monitoring (total 40 parameters)

rotary speed

 

 

vibration

 

 

generator temperature

 

 

generator output

 

 

air temperature in nacelle

 

Storm safety device (50-year gust)

42 m/s

 

 

   
Weights

 

 

Nacelle without rotor

 

700 kg

Rotor

 

470 kg

Blades

 

117 kg

Tower

concrete                    

12'500 kg

 

steel

2'100 kg