LTW77 800 / 850 / 1.000 kW
LTW77 800 / 850 / 1.000 kW
Design Data
Hub Height:
61,5 / 65 / 80 m
Rated Power:
800 /
850 /
1.000 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/IIIA+
Rotor
Number of blades:
3
Rotor diameter:
76,6 m
Swept area:
4.608 m²
Rotational speed:
18 /
18 /
18 rpm
Tip speed:
72 / 72 / 72 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
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.
Compliant with:
- Grid codes CEI 0-16, TERNA, e-on (incl. LVRT), others
- Power quality measurements according to IEC 61400-21
- Emission limits IEC 61800-3
Compliant with:
- Grid codes CEI 0-16, TERNA, e-on (incl. LVRT), others
- Power quality measurements according to IEC 61400-21
- Emission limits IEC 61800-3
Arrangement:
single or multiple converter
Power curve
Wind speed (m/s)
Electrical power(kW)
| (m/s) | LTW77 800 | LTW77 850 | LTW77 1.000 |
|---|---|---|---|
| 3 | 24 | 24 | 24 |
| 4 | 69 | 69 | 69 |
| 5 | 150 | 150 | 150 |
| 6 | 269 | 269 | 269 |
| 7 | 433 | 433 | 433 |
| 8 | 605 | 617 | 617 |
| 9 | 736 | 768 | 839 |
| 10 | 788 | 834 | 952 |
| 11 | 800 | 850 | 1.000 |
| 12 | 800 | 850 | 1.000 |
| 13 | 800 | 850 | 1.000 |
| 14 | 800 | 850 | 1.000 |
| 15 | 800 | 850 | 1.000 |
| 16 | 800 | 850 | 1.000 |
| 17 | 800 | 850 | 1.000 |
| 18-25 | 800 | 850 | 1.000 |
Download Product Specification
CERTIFIED PRODUCTS
Please visit our Certificates page for an overview of all certified LEITWIND products.