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ENERCON - Model E-70 / 4,300 kW - Wind ...

ENERCON - Model E-70 / 4,300 kW -Wind Turbines

Rated power: 2,300 kW, Rotor diameter: 71 m, Hub height: 57 m / 64 m / 74 m / 85 m / 98 m / 113 m, Wind zone (DiBt): WZ III, Wind class (IEC): IEC/NVN IA und IEC/NVN IIA, 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: 3,959 m²
Blade material: GRP (epoxy resin); integrated lightning protection
Rotational speed: variable, 6 - 21.5 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: Double-row tapered / cylindrical roller bearings
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