video corpo

LTW 70

LTW 70

LTW 70

Product catalog summary
Specifications:
The wind turbine has a rated power of 2,000 kW with a hub height of 60 meters. It features a steel tower and operates with an active, electrical yaw control system. The turbine is designed for Wind Class IA conditions.

Rotor:
The rotor consists of 3 blades with a diameter of 70.1 meters, covering a swept area of 3,859 m². It operates at a rotational speed of 20.8 rpm, with a tip speed of 76 m/s. The blades are made from GFRP-UP material, and the turbine uses active pitch control for power and rotor speed management.

Generator:
The generator is a Permanent Magnet Direct Drive Synchronous Machine with modular coils and tooth concentrated winding. It features a modular permanent magnet rotor topology and operates as a variable low-speed machine with a protection class of IP55.

Power Curve:
The turbine starts generating power at a cut-in wind speed of 3 m/s and reaches its rated power of 2,000 kW at 16 m/s. It continues to produce this power up to a cut-out wind speed of 25 m/s.

Control & Safety System:
The main brake is aerodynamic with independent pitch control, complemented by an electrical service brake and a hydraulic rotor lock. Remote control is facilitated through Leitwind's SCADA system.

Power Electronics:
The turbine uses a 4Q full power 3-phase IGBT converter with a rated voltage of 690 V ±10% and a frequency of 50-60 Hz ±5%. It supports a power factor range of 0.95 ind - 1 - 0.95 cap for reactive power compensation and grid voltage control. The system is water-cooled and complies with major grid codes, including CEI 0-16, TERNA, and e-on, as well as IEC 61400-21 and IEC 61800-3 standards.
See more

Catalog excerpts

LTW 70-2

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 Water cooled Power quality and Grid codes High quality output power in accordance with major grid code requirements. Integration into various grid...

 Open the catalog to page 2

All LEITWIND catalogs and technical brochures

  1. LTW 42

    2  Pages

  2. LeitDrive

    2  Pages

  3. LTW101

    2  Pages

  4. LTW86

    2  Pages

  5. LTW80

    2  Pages

  6. LTW77

    2  Pages

*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.