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Four kW InformationFour kW SchematicsFour kW Specifications
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ResidentialCommercial
4kW 2nd Generation VAWT5kW Wind Turbine
Four kW InformationFour kW SchematicsFour kW Specifications
Four kW InformationFour kW SchematicsFour kW Specifications
750 kW Wind Turbine1MW Wind Turbine2MW Wind Turbine
Four kW InformationFour kW Specifications
Four kW InformationFour kW Specifications
Four kW InformationFour kW Specifications
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Built in lightning protection
Weather Conditions

Operating: -30 to 45°C
Stand-still: -40 to 55°C

bearings
Drive Train

Main Bearing: One row double-tapered roller

Gearbox: 3-stage, combined planetary/helical
Generator: Synchronous, permanent magnet

Weight

Nacelle: 75 mt
Rotor: 45 mt
Tower (80m): 125 - 150 mt

Controller

Type: Computer
Remote Control: Internet
SCADA: WPPIS (via Internet)

control
Power Converter

Type: I.G.B.T. Pulse Width Modulation (PWM)

Voltage: 1,100Vrms
Frequency: 50/60Hz

with emergency power supply
Pitch System

Type: Independent blade pitch per rotor blade

Drive: DC electro servo-drive
Failsafe Brake: Battery back-up

Measurements

Rotor Diameter: 88 / 93 meters
Number of Blades: 3
Standard Hub Height: 80 / 90 meters
Blade Composition: Fiberglass/Epoxy
Lightning Protection: Included in blade design

on the gearbox highspeed shaft
Yaw System

Type: Ball bearing
Brake: Active hydraulic disc brakes mounted

Motor: 4-asynchronous

Performance
(Class II / III where applicable)


Rated Power: 2 MW
Cut-in Speed: 3 m/s
Rated Speed: 12 / 11.5 m/s
Top Speed: 25 m/s
Tip Speed: 70.5 m/s
Rotational Speed: 6-17.5 RPM
Rated Speed: 15.3 RPM
Survival Speed: 17.5 RPM
Swept Area: 6,079 / 6,790 m2
Wind Class: IEC IIA / IIIA
Sound level: 102dB(A) at 8 m/s wind speed

Charts and Specifications