Operating Data

	1.5sle	1.5sl	1.5s	1.5se
Rated capacity	1,500 kW	1,500 kW	1,500 kW	1,500 kW
Cut-in wind speed	3.5 m/s	3.5 m/s	4 m/s	4 m/s
Cut-out wind speed 600 s average	25 m/s	20 m/s	WZ II: 22 m/s WZ III, IEC II: 25  m/s	25 m/s
Cut-out wind speed 30 s average	IEC s: 28 m/s	WZ II: 23  m/s	WZ II: 25 m/s WZ III, IEC II: 28  m/s	IEC I: 28 m/s
Cut-out wind speed 3 s average	IEC s: 30 m/s	WZ II: 25  m/s	WZ II: 27 m/s WZ III, IEC II: 30  m/s	IEC I: 30 m/s
Cut-back-in wind speed 300 s average	IEC s: 22 m/s	WZ II: 17  m/s	WZ II: 19 m/s WZ III, IEC II: 22  m/s	IEC I: 22 m/s
Rated wind speed	12 m/s	12 m/s	12 m/s	12 m/s

Rotor

	1.5sle	1.5sl	1.5s	1.5se
Number of rotor blades	3	3	3	3
Rotor diameter	77 m	77 m	70.5 m	70.5 m
Swept area	4,657 m2	4,657 m2	3,904 m2	3,904 m2
Rotor speed (variable)	10.1 - 20.4 rpm	10.1 - 20.4 rpm	11.1 - 22.2 rpm	11.1 - 22.2 rpm

Tower

	1.5sle	1.5sl	1.5s	1.5se
Hub heights (m)	61.4+ / 64.7+ / 80+ / 85+	61.4* / 64.7* / 80* / 85* / 100*	64.7* /** / 80* /** / 85* /** / 100* m	52.6*** / 54.7*** / 64.7***

^* for WZ II ^**for WZ III/IEC II ^***for IEC I + for IEC s

Power Control

	1.5sle	1.5sl	1.5s	1.5se
Power control	Active blade pitch control	Active blade pitch control	Active blade pitch control	Active blade pitch control

Operating Limits (outside temperature)

• Cold weather light: -4 to 104 °F (-20 to 40 °C)
• Cold weather extreme: -22 to 104 °F (-30 to 40 °C)/-40 °C to +50 °C survival without operation

Control System

• Programmable logic controller (PLC)
• Remote control and monitoring system

Gearbox

• Three-step planetary spur gear system

Generator

• Doubly-fed three-phase asynchronous generator

Braking System (fail-safe)

• Electromechanical pitch control for each blade (three self-contained systems)
• Hydraulic parking brake

Yaw System

• Electromechanical driven with wind direction sensor and automatic cable unwind

Converter

• Pulse-width modulated IGBT frequency converter

Tower design

• Multi-coated, conical tubular steel tower with safety ladder to the nacelle
• Load lifting system, load-bearing capacity more than 441 lbs (200 kg)
• Service platform for 100 m hub height (service lift optional)

Noise Reduction

• Impact noise insulation of the gearbox and generator
• Sound reduced gearbox
• Noise reduced nacelle
• Rotor blades with minimized noise level

Lightning Protection System

• Lightning receptors installed on blade tips
• Surge protection in electrical components

Note: subject to technical alterations, errors and omissions