LTW77
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LTW77
Product catalog summary
Specifications:
The document outlines the specifications for wind turbines with rated powers of 800 kW, 850 kW, and 1,000 kW. The hub heights are 61.5 m, 65 m, and 80 m, respectively. The turbines feature a steel tower and operate with a cut-in wind speed of 3 m/s and a cut-out wind speed of 25 m/s. The yaw control system is active and electrical, suitable for Wind Class IIIA+.
The document outlines the specifications for wind turbines with rated powers of 800 kW, 850 kW, and 1,000 kW. The hub heights are 61.5 m, 65 m, and 80 m, respectively. The turbines feature a steel tower and operate with a cut-in wind speed of 3 m/s and a cut-out wind speed of 25 m/s. The yaw control system is active and electrical, suitable for Wind Class IIIA+.
Rotor:
Each turbine has three blades with a rotor diameter of 76.6 m and a swept area of 4,608 m². The rotational speed is variable, ranging from 16.8 to 18 rpm, with a tip speed of 67 to 72 m/s. The blades are made from GFRP-UP material, and the power and rotor speed are controlled via active pitch control.
Each turbine has three blades with a rotor diameter of 76.6 m and a swept area of 4,608 m². The rotational speed is variable, ranging from 16.8 to 18 rpm, with a tip speed of 67 to 72 m/s. The blades are made from GFRP-UP material, and the power and rotor speed are controlled via active pitch control.
Generator:
The turbines use a Permanent Magnet Direct Drive Synchronous Machine with modular coils and tooth concentrated winding. The rotor topology includes modular permanent magnets with flux concentration. The speed range is variable, and the protection class is IP55.
The turbines use a Permanent Magnet Direct Drive Synchronous Machine with modular coils and tooth concentrated winding. The rotor topology includes modular permanent magnets with flux concentration. The speed range is variable, and the protection class is IP55.
Electrical Power Output:
The power output varies with wind speed, reaching maximum rated power at 11 m/s and maintaining it up to 25 m/s.
The power output varies with wind speed, reaching maximum rated power at 11 m/s and maintaining it up to 25 m/s.
Control & Safety System:
The main brake is aerodynamic with independent pitch control, and the service brake is electrical. The rotor lock is hydraulic, and remote control is managed via Leitwind SCADA.
The main brake is aerodynamic with independent pitch control, and the service brake is electrical. The rotor lock is hydraulic, and remote control is managed via Leitwind SCADA.
Power Electronics:
The converter type is a 4Q full power, 3-phase IGBT with a rated voltage of 690 V ±10% and frequency of 50-60 Hz ±5%. The converter power factor ranges from 0.95 ind to 0.95 cap for reactive power compensation and grid voltage control. Cooling options include air and water.
The converter type is a 4Q full power, 3-phase IGBT with a rated voltage of 690 V ±10% and frequency of 50-60 Hz ±5%. The converter power factor ranges from 0.95 ind to 0.95 cap for reactive power compensation and grid voltage control. Cooling options include air and water.
Compliance and Quality:
The turbines meet major grid code requirements, including CEI 0-16, TERNA, and e-on (incl. LVRT). Power quality measurements comply with IEC 61400-21, and emission limits adhere to IEC 61800-3.
The turbines meet major grid code requirements, including CEI 0-16, TERNA, and e-on (incl. LVRT). Power quality measurements comply with IEC 61400-21, and emission limits adhere to IEC 61800-3.
Additional Information:
The document notes that specifications and information are subject to change without notice.
The document notes that specifications and information are subject to change without notice.
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Catalog excerpts
CONTROL & safety system Rated power Main brake Aerodynamic, indipendent pitch control Service brake Cut-in wind speed Rotor lock Cut-out wind speed Remote control Leitwind - SCADA Active, electrical power electronic Wind class Converter type 4Q full power - 3 phase IGBT Converter rated voltage and frequency (grid-side) Converter power factor (grid-side) 0,95 ind - 1 - 0,95 cap for reactive power compensation control, grid voltage control capability Air and water cooled options Power quality and Grid codes High quality output power in accordance with major grid code requirements. Integration into...
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.