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Nordex N131/3900 Wind Turbine
Nordex N131/3900 Wind Turbine
The Nordex N131/3900 is an economical turbine for IEC-III locations with a maximum efficiency in the 3 mw segment. Thanks to the rotor sweep and high rated output, it obtains much higher yields. The turbine is available with hub heights of 84 to 134 meters and is thus ideal for complex locations. The maximum rated power can be adjusted (e.g. 3 MW) to also meet project-specific grid requirements. The N131/ 3900 produces a maximum of 106.2 decibels with serrations – which is crucial for optimising and obtaining approvals for
wind farms.
1. MAXIMUM EFFICIENCY
2. MATURE TECHNOLOGY
3. LARGE ROTOR
4. STRONG RATED OUTPUT
5. HIGH TOWERS
6. HIGH AVAILABILITY
7. ANTI-ICING SYSTEM
Transported, installed and serviced by Nordex, with a warranty of 25 to 30 years.
OPERATING DATA
Rated power: 3.9 MW
Cut-in wind speed: 3.0 m / s
Cut-out wind speed: 25 m / s
ROTOR
Diameter: 131.0 m
Swept area: 13,478 m²
Operating range rotational speed: 7.9–14.4 rpm
Rated rotational speed: 12.6 rpm
Tip speed: 86.2 m / s
Speed control: Variable via microprocessor
Overspeed control: Pitch angle
GEARBOX
Type: 3-stage gearbox (planetary-planetary-spur gear)
GENERATOR
Construction: Doubly fed asynchronous generator
Cooling system: Liquid / air cooling
Voltage: 660 V
Grid frequency: 50 / 60 Hz
BRAKE SYSTEM
Main brake: Aerodynamic brake (pitch)
Holding brake: Disc brake
HUB HEIGHT
Hub height: up to 134 m and project and site specific
