Technical drawing N90 (2,3 MW)

1.	The Rotor Blades are made of glass fibre reinforced plastic. The rotor is pitch regulated.	2.	The Hub is made of cast iron.
3.	The Turbine Frame is made of ductile cast iron. A superior material with regards to strength, vibration and noise reduction features.	4.	The Rotor Bearing is a solid double spherical roller bearing with a ductile cast iron casing.
5.	The Rotor Shaft is made of ductile cast iron.	6.	The Gearbox is a custom design 2-stage planetary gear.
7.	The Disk Brake is equipped with two brake calipers and located on the high speed shaft of the gearbox.	8.	The Generator Coupling is a flexible coupling.
9.	The Generator is a 2500 kW liquid cooled double-fed asynchronous generator.	10.	The Cooling Radiator is a part of the gearbox cooling system.
11.	The Fan Coolers for the generator cooling.	12.	The Wind Measuring System consists of a redundant anemometer and wind vane, which measures the wind conditions and gives signal to the turbine control system.
13.	The Control System monitors and controls the operation of the wind turbine.	14.	The Hydraulic System maintains and controls the hydraulic pressure to the disc brakes and the yaw brake system.
15.	The Yaw Drive consists of 2 planetary yaw gears, driven by frequency controlled electrical motors.	16.	The Yaw Bearing is a 4-point ball-bearing with outer teething.In addition the turbine is equipped with an active yaw disc brake system.
17.	The Nacelle Cover is made of glass fibre reinforced plastic on a steel frame.	18.	The Tower is a tubular steel structure which can be delivered in various heights.
19.	The Pitch system consists of 3 independent pitch gears, driven by electrical motors.

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