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Back to Indigo Wind Energy Systems Products Wind Turbine NORWIN 29-STALL-225 kW - Specifications

PERFORMANCE PARAMETERS
Nominal Electrical Power 225 kW
Power Regulation Stall
ROTOR
Rotor Diameter Diameter 29.1 m (95.4 ft)
Speed 37.9 rpm at full load
Number of Blades Three blades placed upwind of tower
Swept area 664 m² (7145 ft2 )
Tilt angle
Coning angle
BLADE
Blades make LM 13.4
Pitch angle App.: -2.3° (Will be adjusted during running in)
BRAKE SYSTEM CONTROL
Air brake Turnable blade tips
Mechanical brake A fail safe type disk brake on the high-speed shaft of the gearbox
Brake torque 2,0 times of nominal torque or soft brake system (1 times of nominal torque) by normal braking sequences
RPM max. value 1600 rpm (50 Hz), observed on the high-speed shaft
GENERATOR
Type Closed, 4-pole, single wound, induction, IP54.
Generator speed 1500 rpm synchronous (50 Hz)
Loss in generator App.: 3 % at full load
Generator cut-in Thyristor controlled gradual cut-in
Grid connection 50 Hz, 690 V or as specified
YAW SYSTEM
Yaw motors 2 pcs. active drives, electrical
Yaw brakes 3 pcs. active hydraulic operated brakes
Yaw bearing Slide bearing
TOWER
Type Conical steel tower
HubHeight 30 m (98.4 ft) or 40 m (131.2 ft)
CONTROL SYSTEM
Type Microprocessor based or alternatively PLC based
Cut-in wind speed 4 m/s (9 mph)
Cut-out wind speed 25 m/s (60 mph), based on 5min average
Survival wind speed 67 m/s (150 mph)
APPROXIMATE SYSTEM DESIGN WEIGHTS
Tower 30 m 13.25 tons
Tower 40 m 20.70 tons
Nacelle excl. rotor 7.63 tons
Complete rotor 5.30 tons
Nacelle total 12.93 tons
MAXIMUM NOISE LEVEL
98 dBA

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