3.2M114 NES

One of the quietest wind turbines in its class

With the hub height of 100 meters, the Senvion 3.2M114 was designed for medium wind speeds. Thanks to the larger rotor surface and the optimised aerodynamics of the rotor blades, these turbines can deliver up to ten per cent higher yield than the 3.4M104. Because the hub height of 100  meters rise above natural obstacles, this turbine generates high yields even in difficult terrain. Alternatives such as the cold climate version mean these turbines can be used anywhere in the world, even in extreme climate conditions.

  • Nominal power: 3,200 kW
  • Rotor diameter: 114 m
  • Hub height: 100 m


  • Wind class: Medium Wind
  • Operating temperature range: -20 – +35 °C
  • Rotor surface: 10,207 m²

Senvion Technology

The 3.XM series features a well-proven modular and evolutionary technology concept. The smart and robust design results in a highly efficient and reliable turbine concept: from the aerodynamically optimized rotor blade, compact and efficient drivetrain, advanced control technology right through to the transformer. This flawless interplay delivers high energy yields while keeping sound emissions low.

The NES platform - An electrical system for any grid requirements

Our turbines, which are equipped with the Next Electrical System (NES), already fulfil the grid requirements of tomorrow. All NES turbines are based on the tried and tested MM and 3.XM series construction concept.

  1. 1

    Generator/frequency converter

    • Variable speed range for optimum yields
    • Fully encapsulated generator with air-air heat exchanger
    • Optimum temperature inside generator, even at high ambient temperatures
    • Water-cooled converter power electronics for optimised cooling
    • The converter and controllers are located in the tower base, leaving even more space in the nacelle and making operation that much easier

  2. 2

    Gear system

    • Planetary/spur gear
    • Satisfies stringent demands in terms of service life and operating smoothness in line with Senvion gear specifications
    • Elastomeric torque arm bearing for structure-borne sound insulation
    • Low temperature thanks to efficient oil cooling system
    • Three-stage oil filter system for excellent oil quality

  3. 3

    Rotor blade

    • Individual blade profiles for optimal aerodynamics of the rotor
    • Robust aerodynamic design guarantees best possible performance, even in difficult wind conditions or when dirty
    • Proven quality, tested statically and dynamically in accordance with IEC specifications
    • Fully integrated lightning protection in accordance with IEC protection class I

  4. 4

    Pitch system

    • Virtually maintenance free electrical system
    • High-quality, large blade bearing with permanent track lubrication and external gearing
    • Integrated deflector in the spinner as protection from the elements
    • Maximum reliability through redundant blade angle detection with two independent measuring systems
    • Fail-safe design with independent drive and control systems for each rotor blade

  5. 5

    Rotor bearing and rotor shaft

    • High quality spherical roller bearing with bearing with perfectly fitted bearing housing and permanent lubrication for maximum service life
    • Rotor shaft aligned with transfer of torque

  6. 6

    Azimuth

    • Four-point contact bearing with external gearing, powered by top quality high-performance gear motors
    • Holding brakes with hydraulic pressure accumulator for fail-safe function relieve drive systems when inoperative and stabilise nacelle
    • Minimum stress on the drive trains thanks to low friction of four-point bearing and brake release during wind tracking

  7. 7

    Holding brake

    • Generously dimensioned disc brakes hold rotor safely
    • Soft brake function for minimum wear of gearbox

  8. 8

    Tower

    • Natural frequency of tower higher than rotational speed of rotor (rigid design) ensures minimum stress on tower and nacelle
    • No speed restrictions, as no frequency interference
    • Maximum component safety thanks to L-shaped flange and stress-optimised door opening

Technical data

Design data

Nominal power 3,200 kW
Cut-in wind speed 3 m/s
Nominal wind speed 12 m/s
Cut-out wind speed 22 m/s
Restart cut-in wind speed 19 m/s
Operating temperature range -30 – +35 °C

Certification

Hub height Wind class DIBt Wind zone
100 m IEC S -

Rotor

Diameter 114 m
Rotor area 10,207 m²
Rotor speed 6.5 – 12.1 1/min (+25 %)
Power control Electrical pitch

Rotor blade

Blade length 55.8 m
Type Glass fiber-reinforced plastic (GFRP)
Max. chord width 4 m

Gear system

Type Three-stage planetary / spur gearbox
Type of suspension Three-point contact suspension

Weight

Rotor blade Approx. 15 t
Nacelle without drive train Approx. 58 t
Rotor Hub Approx. 25 t

Electrical system

Nominal power 3,200 kW
Nominal voltage 560 V
Nominal frequency 60 Hz
Generator Asynchronous generator (squirrel cage rotor)
Generator protection class IP 54
Converter type Full scale converter with direct voltage intermediate circuit

Sound power level

Maximum sound power level 104.2 db (A)

Power curve

Please contact the relevant company within the Senvion Group to check the availability of a given product in your country.

Contact us

Senvion Sales

Überseering 10
22297 Hamburg

Phone: +49 40 5 55 50 90-0
Fax: +49 40 5 55 50 90-39 99
sales[at]senvion.com