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Gamesa G58-850 kW

All specifications of Gamesa G58-850 kW

Benefits

Optimum performance for low winds

Class IIIB/WZII.
Pitch and variable speed technology to maximize energy production.
Production of lighter blades using fiberglass and prepreg method.
Compliance with the main international Grid Codes.
Aerodynamic design and Gamesa NRS® control system to minimize noise emissions.
Gamesa SGIPE: Remote monitoring and control system with Web access.
Over 5,800 Gamesa G5X-850 kW wind turbines installed.

Mechanical design
Drive train with main shaft supported by two spherical bearings that transmit the side loads directly to the frame by means of the bearing housing. This prevents the gearbox from receiving additional loads, reducing malfunctions and facilitating its service.
Lightning protection
The Gamesa G58-850 kW wind turbine generator uses the “total lightning protection” system, in accordance with standard IEC 61024-1. This system conducts the lightning from both sides of the blade tip down to the root joint and from there across the nacelle and tower structure to the grounding system located in the foundations. As a result, the blade and sensitive electrical components are protected from damage.
Gamesa SGIPE
Gamesa SGIPE and its new generation Gamesa WindNet™ (wind farm control systems), developed by Gamesa, that allow realtime operation and remote control of wind turbines, meteorological mast and electrical substation via satellite-terrestrial network. Modular design with control tools for active and reactive energy, noise, shadows and wake effects. TCP/IP architecture with a Web interface.
Noise control
Aerodynamic blade tip and mechanical component design minimize noise emissions. In addition, Gamesa has developed the Gamesa NRS® noise control system, which permits programming the noise emissions according to criteria such as date, time or wind direction. This achieves the goals of local regulation compliance as well as maximum production.

Brake
Aerodynamic primary brake by means of full-feathering blades. In addition, a hydraulically-activated mechanical disc brake for emergencies is mounted on the gearbox high speed shaft.
Control system
The Generator is a doubly fed machine (DFM), whose speed and
power is controlled through IGBT converters and PWM (Pulse
Width Modulation) electronic control.

Benefits:
- Active and reactive power control.
- Low harmonic content and minimal losses.
- Increased efficiency and production.
- Prolonged working life of the turbine.
SMP Predictive Maintenance System
Predictive Maintenance System for the early detection of potential deterioration or malfunctions in the wind turbine’s main components..

Benefits:
- Reduction in major corrective measures.
- Increase in the machine’s availability and working life.
- Preferential terms in negotiations with insurance companies.
- Integration within the control system.
Grid connection
Gamesa’s doubly-fed wind turbines and Active Crowbar and over sized converter technologies ensure the compliance with the most demanding grid connection requirements. Low voltage ride-through capability and dynamic regulation of active and reactive power.

Service crane
Generator
Cooling system
Top control unitl
Gearbox
Main shaft with two bearings
Rotor lock system
Blade
Hub
Hub cover
Blade bearing
Bed frame
Hydraulic unit
Shock absorbers
Yaw ring
Brake
Tower
Yaw gears
Transmission.High speed shaft

Power Curve Gamesa G58-850 kW

(for an air density of 1.225kg/m3)

Power curve calculation based on NACA 63.XXX and FFA-W3 airfoils.
Calculation parameters: 50 Hz grid frequency; tip angle pitch regulated, 10% turbulence intensity and a variable rotor speed ranging from 14.6 - 30.8 rpm.