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- WTN - Model 250 kW - Wind Turbine
WTN - Model 250 kW - Wind Turbine
The WTN250 is a product of development, which is based on more than 25 years of constant experience in wind turbine design and production. It is composed of well-tested parts and reliably operating construction elements combined with modern technical know-how. In that way we achieve the optimum in converting wind power into electrical energy.
GENERAL
- Nominal Output:250 kW
- Rotor shaft arrangement: horizontal
- Effect limitation:Stall
- Mode of operation:Grid connected
- Hub height:30 m - 50 m
- 50 year extreme gust:59,5 resp. 52,5 m/s
- Calculated lifetime:25 years
POWER DATA
- Cut in windspeed:4 m/s
- Rated windspeed:14 m/s
- Power at 10 m/s151,8 kW
- Cut off windspeed:25 m/s
- Max. shaft power:300 kW
- Specified output:378 W/m²
ROTOR
- Diameter:29 m or 30 m
- Swept area:661 m² or 707 m²
- Number of blades:3
- Kind of hub:rigid
- Arrangement of rotor:upwind
- Rotor speed:26 / 40 rpm
- Lambda:5,5
- Blade pitch angle:-2 °
- Conus angle:0 °
- Nacelle angle:4 °
BLADE
- Type:WTN 13,4
- Material:Glassfiber
- Length of blade:13,39 m
- Chord root / tip:1,259 m / 0,03 m
GEAR
- Type:Spur gear
- Ratio:1 : 30,23 resp. 37,96
- Stages:3
YAW-SYSTEM
- Kind (active / passive):active
- Actuation:electrical
- Y aw speed:1,0 ° - 1,2 °/ s
- Absorbation system:Friction safety clutch
GENERATOR
- Kind:asynchronous, pole-changeable
- Rated output:50 / 250 kW
- Rated speed:1.515 or 1.212 rpm
- Voltage:400 V ±10%
- Frequency:50 Hz or 60 Hz ±5%
- Protection:IP 55
- Insulation:Class F
- Grid connection:via Thyristors
TOWER
- Kind:Lattice / Edged / Tubular / Tubular
- Material:Steel / Steel / Steel / Steel
- Length:48,4m / 45m / 38,7m / 28,7m
- Safety ladder:yes / yes / yes / yes
CONTROL SYSTEM
- Kind of output control:Stall regulation
- Operating system:Phoenix contact
- Remote control system:Web based
- Automatically start:after loss of grid and after cut out wind
BRAKES
- Aerodynamic brakes:Tip brakes
- Activation:hydraulic
- Mechanical brakes:Disc brake
- Arrangement:behind gearbox
- Activation:mechanical
MASSES
- Rotor (with hub):3.550 kg + 650 kg (30 m)
- Nacelle (without rotor):9.750 kg
- T ower:50 m lattice= 22.700 kg / 46 m edged= 32.000 kg
- Total without foundation:36.500 kg / 45.700 kg
- T ower:40m tubular= 21.000 kg / 30m tubular= 11.500 kg
- T otal without foundation:34.700 kg / 25.200 kg
The high availability and efficient production connected with an ongoing quality control makes the turbine to an economic and ecological investment.
The new development of the WTN250 was especially designed for foreigns markets. Its design features match with the high requirements and environmental conditions in foreign countries and guarantees a high vailability with the approved technology there