STK ALTERNATORS

STK WIND TURBINE ALTERNATORS

Permanent magnets frameless alternators for Direct Drive of wind turbines
The range of STK Permanent Magnet alternators, also called permanent magnet generators,  addresses the applications of Wind Turbine generators, windmill  alternators or windmill generators for small wind turbines, that is to say in low and medium power needing the highest power-to-weight ratio in Direct Drive without gear for matching cost-effective solutions.

Main characteristics of wind turbine alternators

• Rated power from 200 W up to 95 kW depending on size and rated speeds.
• Rated speeds from 80 RPM up to 1500 RPM.
• Six overall diameters from 145 mm up to 795 mm.
• Internal diameter from 56 mm up to 630 mm.
• Various available voltages up to 500 Vac.
• For environment and integration constraints, please request our STK handbooks for assembly

Assets of wind turbine alternators

• No speed multiplier, no gear
• No maintenance
• Highest power-to-weight ratio in Direct Drive
• High efficiency
• Simplification of mechanical design
• Easy mechanical interface
• Cost optimization

Characteristics of the range of wind turbine alternators

The range of AC  frameless permanent magnet generators STK includes 6 sizes from 145 mm up to 800 mm available in four different lengths per size and two standard rated speeds. Their extremely compact design and high efficiency allow the use in direct drive in small wind turbines as wind turbine generators and windmill generators.