20kw Wind Turbine for on-Grid Power Supply System Plan
1) Housing, office, farm and factory;
2) Telecommunications Station
3) TV Transfer Station;
4) Monitoring Station (military, hydrology, observatory)
5) Water-pumping Station;
|Configuration||3 Blades, Horizontal axis, Upwind|
|Rotor Diameter||9.0 m / 29.5 ft|
|Swept Area||63.62 m2 / 541.1 ft2|
| Direction of Rotation||Clockwise looking upwind|
|Blade Material||Fiberglass reinforced composite|
|Rated Power||20 kW @ 11.5m/s|
|Battery Bank Voltage||240 Vdc|
|System Output Voltage||380 Vac three phase|
|Cut-in Wind Speed||3 m/s|
|Rated rotating rate||180 r/min|
|Working Wind Speed||3-25 m/s|
|Survival Wind Speed||50 m/s|
|Alternator||Permanent magnet alternator, SCF technology|
|Alternator Weight||496 kg / 1093.5 lbs|
|Energy monitoring & User control||Siemens PLC controller with touch screen|
|Gearbox||None, Direct drive with front generator design|
|Over Speed Regulation||Auto Yawing & Hydraulic Braking(optional)|
|Shutting Down Method||Manual & Automatic electromagnetism Braking|
| Warranty|| 5 years |
Ø Rotation speed controlled by passive variable pitch mechanism with centrifugal force.
Ø Power curve optimized by two-stage springs to balance the pitch driving force.
Ø No tail vane, down-wind designing with electricity transmitted by collecting ring.
Ø 3-phase direct drive permanent magnet generator with maintenance free.
Ø All surfaces sealed with outer parts pot galvanized, antirust.
Ø Quick installation & easy operating.
Ø Compact structure with streamline and nice appearance.
Ø Running stably and safely with 15 years lifetime, easy maintenance