The N131/3900 is specially designed for light-wind locations (IEC-3). With its 3.9 MW installed capacity the increase in rated output amounts to 8 percent compared to its predecessor, the N131/3600. Despite the substantial increase in output, sound power level is limited to max. 106.2 dB(A) through rotor blades equipped with serrated trailing edges.
The N131/3900 is available with tower heights of 84 to 134 metres.
The N131/3900 is based on Nordex’ proven turbine design of Generation Delta. With the N131/3900, Nordex customers are able to benefit from our more than 17 years of experience in the multi-megawatt segment.
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Greater nominal output
With a nominal output of 3.9 MW, the N131/3900 has a 8 percent greater capacity than its predecessor.
Proven rotor blade design - increased rotor surface
The N131/3900 features the in-house developed own NR65.5 rotor blade with 13,478 square meters rotor sweep.
Optimized hub heights
Hub heights of 84 to 134 meters help to achieve greater yields.
Reduced power levels
Despite the substantial increase in output, sound power level is limited to max. 106.2 dB(A). What is more, Nordex offers numerous noise-optimised operating systems for particularly noise-critical locations. Thank to the improved sector-cut-out modes, an optimum yield is still achieved.
Proven drive train concept
The drive train concept is based on the proven 3-point bearing structure. The optimised drive train geometry reduces the forces impacting the individual components, thus lowering the strain on the robust rotor bearings.
Economical electrical system
As with the first wind power systems using Nordex’s multi-megawatt platform, the N131/3900 is fitted with a double-fed asynchronous generator and frequency converter. This system is characterised by superior reliability and economic efficiency.
Internally produced control system
Over 4.500 Nordex turbines have already been fitted with Nordex’s own proven Nordex Control™ system, which controls, regulates and monitors the wind power systems. Permanent and protected access to the turbine and wind farm data on site or remotely is browser-based, interactive and secure. With its modular structure and standardised interfaces, Nordex Control™ can be adjusted flexibly to meet the customer’s SCADA requirements.
Accustomed grid compatibility
The N131/3900 meets the grid requirements of most international markets. The German System Service Ordinance (SDLWindV) is one of the most demanding grid codes in Europe. With their fault ride-through capabilities, the turbines can effortlessly bridge any disruptions in voltage and thus fully comply with all requirements for the system service bonus. What is more, the Nordex Windfarm Management System allows the grid operator to directly control the active and reactive power of the windfarm in the grid.
Extended standard operating conditions
The turbine can be operated at sites with average temperatures in a normal climate range and even at temperatures of as low as -20 degrees Celsius, thus enhancing the annual yield at your site. The proven Nordex Cold Climate Package additionally helps to open up high-yield cold locations. The cold-climate version of the turbine has an extended operating range of temperatures down to -30 degrees Celsius.
The Anti-Icing System heats the aerodynamically most important surfaces of the rotor blades, thus reducing ice formation efficiently, resulting in considerable yield gains at sites characterised by frequent ice formation.
A safe and spacious work place
The turbine nacelle provides particularly safe and roomy space to work with extended escape and rescue routes. This helps to lower maintenance-induced downtimes: