LTW77 1500 kW

LTW77 1.500 kW

LTW77 1.500 kW

Design Data

Hub Height:
61,5 / 65 / 80 m
Rated Power:
1.500 kW
Tower:
Steel
Cut-in wind speed:
3 m/s
Cut-out wind speed:
25 m/s
Yaw control system:
Active, electrical
Wind Class:
IIA

Rotor

Number of blades:
3
Rotor diameter:
76,6 m
Swept area:
4.608 m²
Rotational speed:
17,8 rpm
Tip speed:
71 m/s
Blade material:
GFRP-UP
Power and rotor speed control:
Active pitch control

Generator

Type:
Permanent Magnet Direct Drive Synchronous Machine
Stator Winding:
Modular coils with tooth concentrated winding, exchangeable
Rotor Topology:
Modular Permanent Magnets with flux concentration, exchangeable
Speed Range:
Variable Low Speed Machine
Protection class:
IP55

Control & Safety System

Main brake:
Aerodynamic, indipendent pitch control
Service brake:
Electrical
Rotor lock:
Hydraulic
Remote control:
Leitwind SCADA

Power Electronic

Converter Type:
4Q full power - 3 phase IGBT
Converter rated voltage and frequency (grid-side):
690 V +/- 10%, 50-60 Hz +/- 5%
Converter power factor (grid-side):
0,95 ind - 1- 0,95 cap for reactive power compensation control, grid voltage control capability
Cooling:
Air cooled rotor, air cooled stator
Power quality and Grid codes:
High quality output power in accordance with major grid code requirements. Integration into various grid systems worldwide. In compliance with:
- Grid codes CEI 0-16, Terna, e-on (incl. LVRT), other
- Power quality measurements according to IEC 61400-21
Emission Limits IEC 61800-3
Arrangement:
Multiple converter

Power curve

Wind speed (m/s)

Electrical power(kW)

(m/s) LTW77 1.500
3 24
4 67
5 147
6 264
7 424
8 605
9 823
10 1.062
11 1.294
12 1.420
13 1.467
14 1.488
15 1.500
16 1.500
17 1.500
18-25 1.500

Download Product Specification

CERTIFIED PRODUCTS

Please visit our Certificates page for an overview of all certified LEITWIND products.