MM92

Our bestseller for medium and low wind speeds

The Senvion MM92 has a rated power output of 2.05 megawatts at a wind speed of 12.5 m/s, thanks to its significantly larger rotor diameter of 92.5 metres. This makes it the ideal turbine for medium to low wind speeds. The MM92 produces energy so powerfully, efficiently and reliably that it has become our top-selling turbine. It is based on the dependable generator gearbox technology of the MM82.

  • Nominal power: 2,050 kW
  • Rotor diameter: 92.5 m
  • Hub height: 64 – 100 m


  • Wind class: Medium to High Wind
  • Operating temperature range: -20 – +35 °C
  • Rotor surface: 6,720 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 MM92

Données techniques

Puissance nominale2 050 kW
Vitesse de démarrage3 m/s
Vitesse de vent nominale12,5 m/s
Vitesse de décrochage24 m/s
Vitesse de redémarrage22 m/s
Plage de température de fonctionnement-20 – +35 °C
Plage de température de fonctionnement optionnel-20 – +40 °C

    Certification

    Hauteur de moyeuClasse de ventDIBt Wind zone
    63,75 – 64,75 mIEC S (basé sur IEC IB)-
    68 – 68,5 mIEC S (basé sur IEC IB)-
    78 – 80 mIEC S (basé sur IEC IB)-
    98 – 100 mIEC S (basé sur IEC IB)-
    63,75 – 100 mIEC S (basé sur IEC IB)-

      Rotor

      Diameter92,5 m
      Surface balayée par le rotor6 720 m²
      Vitesse de rotation7,5 – 15 1/min (+12.5 %)
      Régulation de puissanceElectrical pitch

        Pale

        Longueur45,2 m
        TypeGlass fiber-reinforced plastic (GFRP)
        Longueur max. de la corde3,6 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 maximale103,2 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 MM92 PDF 219 kB
              Senvion - Portfolio Overview PDF 200 KB