300W Wind turbine generator

300W Windturbine generator Product features: 1. Coreless, unique precise coil, thin magnetic gap 2. Very low starting torque, applied to generate electricity with breeze 3. Higher power density 4. High efficiency 5. Excellent volume/performance ratio, light weight 6. No cogging 7. No torque ripple 8. Direct transmission 9. Good heat dissipation, low temperature rise Product Specifications: Model: BGP0300-039 1. Rated Voltage: 39V 2. Gen. Output Voltage: AC(3 Phase) 3. Rotor: Permanet magnet type(outer rotor) 4. Stator: Coreless type 5. Rated Speed: 700rpm 6. Rated Output Power: 300W 7. Max. Output Power: 360W 8. Speed Constant: 69V/krpm 9. Resistance(Line-Line): 0.85 Ω 10. Maximum Winding Temperature: 150 degrees centigrade 11. Generator Efficiency: 82% 12. Start Torque: Very low(Just due to bearing loss ) 13. Number of Phase: 3 14. Number of Pole: 12 15. Connecting Way: Y-type 16. Magnet Material: NdFeB 17. Gen. Weight: 4.78kg 18. Gen. Diameter: 124mm 19. Gen. Length: 107(include shaft length 182)mm 20. Shaft Diameter: 25mm 21. Shaft Material: Steel 22. Bearing: Ball Bearing Applications: Used for small wholesystem of wind power generator