MM82

One of the most frequently produced turbine

With a rotor surface of 5,281 m2, this 2.05 megawatt wind turbine generates consistently good energy yields in high wind locations. It is based on the technology of the MM70, which was launched in 2002 and is meanwhile one of the most frequently produced types of wind turbine in the world. Hub heights ranging from 59 to 80 meters make the MM82 the ideal choice for sites with height restrictions.

  • Nominal power: 2,050 kW
  • Rotor diameter: 82 m
  • Hub height: 59 – 80 m


  • Wind class: High Wind
  • Operating temperature range: -20 – +35 °C
  • Rotor surface: 5,281 m²
  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

  2. 2

    Gear system

    • Planetary/spur gear
    • Satisfies stringent demands in terms of service life and operating smoothness in line with Senvion gear specifications
    • 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

    Rotor hub

    • Dimensionally stable thanks to compact design and alignment with transfer of torque
    • Optimum integration of pitch drive systems
    • Generously proportioned spinner ensures safe access to hub in all weathers

  5. 5

    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

  6. 6

    Rotor bearing and shaft

    • High quality spherical roller bearing with bearing with perfectly fitted bearing housing and permanent lubrication for maximum service life
    • Q&T steel rotor shaft cast in alignment with transfer of torque

  7. 7

    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

  8. 8

    Holding brake

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

  9. 9

    Tubular steel towers

    • 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 MM82

Données techniques

Puissance nominale2 050 kW
Vitesse de démarrage3,5 m/s
Vitesse de vent nominale14,5 m/s
Vitesse de décrochage25 m/s
Vitesse de redémarrage22 m/s
Plage de température de fonctionnement-20 – +35 °C (50 Hz) -30 – +35 °C (60 Hz)
Plage de température de fonctionnement optionnel-20 – +40 °C

    Certification

    Hauteur de moyeuClasse de ventDIBt Wind zone
    58,5 – 59 mIEC IAWZ 4, GK I
    68 – 69 mIEC IA-
    78 – 80 mIEC IA-
    58,5 – 80 mIEC IA-

      Rotor

      Diameter82 m
      Surface balayée par le rotor5 281 m²
      Vitesse de rotation8,5 – 17,1 1/min (+12.5 %)
      Régulation de puissanceElectrical pitch

        Pale

        Longueur40 m
        TypeGlass fiber-reinforced plastic (GFRP)
        Longueur max. de la corde3,3 m

          Système électrique

          Puissance nominale2 050 kW
          Tension nominale690 V (50 Hz)/575 V (60 Hz)
          Fréquence nominale50 Hz/60 Hz
          GénératriceAsynchronous double-fed generator
          Classe de protection de la génératriceIP 54
          Convertisseur de fréquenceFrequency converter for double-fed induction generator
          TransformateurETS (Oil transformer) ITS (Cast resin transformer)

            Niveau acoustique

            Puissance acoustique maximale104 db (A)

              Courbe de puissance

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

              Downloads

              Title File Size
              Technical overview MM82 PDF 218 kB
              Senvion - Portfolio Overview PDF 200 KB