Technical Specification SWT-2.3-93 Wind Turbines
Rotor
Type
| 3-bladed, horizontal axis
|
Position
| Upwind
|
Diameter
| 93 m
|
Swept area
| 6,800 m²
|
Rotor speed
| 6-16 rpm
|
Power regulation
| Pitch regulation
|
Rotor tilt
| 6 degrees
|
Blades
Type
| Self-supporting
|
Blade length
| 45 m
|
Tip chord
| 0.8 m
|
Root chord
| 3.5 m
|
Aerodynamic profile
| NACA 63.xxx, FFAxxx
|
Material
| GRE
|
Surface gloss
| Semi-matt, <30/ ISO 2813
|
Surface color
| Light gray, RAL 7035
|
Aerodynamic Brake
Type
| Full span pitching
|
Activation
| Active, fail-safe
|
Load Supporting Parts
Hub
| Nodular cast iron
|
Main bearings
| Spherical roller bearing
|
Transmission shaft
| Alloy steel
|
Nacelle bedplate
| Steel
|
Transmission System
Coupling hub - shaft
| Flange
|
Coupling shaft - gearbox
| Shrink disc
|
Gearbox type
| 3-stage planetary-helical
|
Gearbox ratio
| 1:91
|
Gearbox lubrication
| Splash / forced lubrication
|
Oil volume
| Approx. 400 l
|
Gearbox cooling
| Separate oil cooler
|
Gearbox designation
| PEAB 4456
|
Gearbox manufacturer
| Winergy AG
|
Coupling gear - generator
| Double flexible coupling
|
Mechanical Brake
Type
| Fail-safe disc brake
|
Position
| High-speed shaft
|
Number of calipers
| 2
|
Generator
Type
| Asynchronous
|
Nominal power
| 2,300 kW
|
Synchronous speed
| 1,500 rpm
|
Voltage
| 690 V
|
Frequency
| 50 Hz
|
Protection
| IP54
|
Cooling
| Integrated heat exchanger
|
Insulation class
| F
|
Generator designation
| AMA 500L4 BAYH
|
Canopy
Type
| Totally enclosed
|
Material
| Steel
|
Yaw system
Type
| Active
|
Yaw bearing
| Externally geared slew ring
|
Yaw drive
| Eight electrical gear motors
|
Yaw brake
| Passive friction brake
|
Controller
Type
| Microprocessor
|
SCADA system
| WPS via modem
|
Controller designation
| KK WTC 3.0
|
Tower
Type
| Cylindrical or tapered tubular steel tower
|
Hub heights
| 70 m, 80 m or site-specific
|
Corrosion protection
| Painted
|
Surface gloss
| Silk matt, 30-40 / ISO 2813
|
Surface color
| Light gray, RAL 7035
|
Operational data
Cut-in wind speed
| 4 m/s
|
Nominal power at approx.
| 13-14 m/s
|
Cut-out wind speed
| 25 m/s
|
Maximum 2 s gust
| 55 m/s (standard version)
60 m/s (special version)
|
Masses (approximate)
Rotor
| 60 t
|
Nacelle excl. rotor
| 82 t
|
Tower (60 m, onshore)
| 81 t
|
Tower (60 m, offshore)
| 98 t
|
Tower (70 m)
| 134 t
|
Tower (80 m)
| 162 t
|