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ENERCON - Model E-44 / 900 kW -Wind Turbines
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Rated power: 900 kW, Rotor diameter: 44 m, Hub height: 45 m / 55 m, Wind class (IEC): IEC/NVN IA, Turbine concept: Gearless, variable speed, single blade adjustment.
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Rotor
- Type: Upwind rotor with active pitch control
- Rotational direction: Clockwise
- No. of blades: 3
- Swept area: 1,521 m²
- Blade material: GRP (epoxy resin); integrated lightning protection
- Rotational speed: variable, 12 - 34 rpm
- Pitch control: ENERCON single blade pitch system, one independent pitch system per rotor blade with allocated emergency supply
Drive Train with Generator
- Main bearing: Tapered roller bearing pair
- Generator: ENERCON direct-drive annular generator
- Grid feeding: ENERCON inverter
- Brake systems: 3 independent pitch control systems with emergency power supply, rotor brake, rotor lock
- Yaw control: Active via adjustment gears, load-dependent damping
- Cut-out wind speed: 28 - 34 m/s (with ENERCON storm control)
- Remote monitoring: ENERCON SCADA