alternative energy generation
Westwind - 20kW Wind Turbine| Westwind Wind Turbines are based in Northern Ireland, (they were formerly of Perth Australia) manufacturers of 3kW, 5kW, 10kW & 20kW wind turbines suitable for both on and off grid installations. The turbines are built to a high standard and finish which is not always found in the small turbine market. Th majority of components are manufactured in the viscinity of the site which cuts out supply problems, it is also better in terms of environmental costs. Westwind wind turbines have three blades, up-wind of the tower with a horizontal axis attached directly to a sealed permanent magnet generator. Having no gearbox has advantages in terms of less moving parts to wear and less friction to reduce the efficiency of the blades. This gives an earlier start-up in light winds, more power is produced and less maintenance than those turbines using gearboxes. The 10kW and 20kW (nominal) turbines are available on monopole towers ranging from 15 - 24m, they would suit a number of applications such as: - Light industry
- Out of town retail
- Large farms
- Communities
- Local authorities
- Schools
- Remote locations
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For further information contact Altergen info@altergen.co.uk | SYSTEM | | Type | 3 Φ Grid Connected
| | Configuration | Horizontal Axis | | Rotor Diameter | 10 m (32.8 ft) | | Centerline Hub Height | 15, 18, 24 and 30 m (49.2, 59.0, 78.7 and 98.4 ft)
| | | | PERFORMANCE PARAMETERS | | Rated Electrical Power | 20 kW @14 m/s (25.3 mph) | | Wind Speed Ratings: | | | cut-in | 3 m/s (10.2 mph)) | | shut-down (high wind) | 18 m/s ( 61 mph)
| | design speed | 60 m/s (134 mph)
| | | | | Calculated Annual Output @ 100 % availability | 5.4 m/s (12 mph) 22,660 kWh
6.7 m/s (15 mph) 48,260 kWh
8.0 m/s (18 mph) 82,630 kWh | | | | ROTOR | | Type of Hub | Passive Pitch Control | | Rotor Diameter | 10 m (32.8 ft)
| | Swept Area | 100 m² (1076 ft²)
| | Number of Blades | 3 | | Rotor Solidity | 0.05
| | Rotor Speed @ rated wind speed | 160 rpm nominal (variable)
| | Location Relative to Tower | Upwind | | Cone Angle | 0º | | Tilt Angle | 6º | | Rotor Tip Speed | 84 m/s (188 mph) @ 160 rpm
| | Design Tip Speed | 6 | | | | BLADE | | Length | 5 m (16.4 ft)
| | Material | Carbon and glass fibre reinforced plastic
| | Blade Weight | 25 kg (330 lbs) approximate
| | | | | GENERATOR | | Type | 3 phase/36 pole synchronous
| | Frequency | 50 Hz variable
| | Voltage | 3 phase @ 50 Hz, 240-380 VAC
| | kW @ Rated Wind Speed | 20 kW | | kW @ Peak Continuous | 25 kW | | Insulation | Class F | | Enclosure | Totally Enclosed Air Over | | Options | Arctic low temp -40°c | | | | | YAW SYSTEM | | Normal | Free, passive
| | Optional | Furl damp | | Electrical | Slip ring brush set
| | | | | TOWER | | Type | Free standing galvanized monopole
| | Tower Height | 15/18/24/30 m | | Options | Towers with guy wires & gin pole |
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| | FOUNDATION | | Type | Concrete pads | | | | | CONTROL SYSTEM | | Type | Electronis, passive pitch regulation and passive side furling | | | | | ROTOR SPEED CONTROL | | Running | Passive pitch regulation
| | Start up | Aerodynamic | | Shut-down | Aerodynamic and manual furling | | | | APPROXIMATE SYSTEM DESIGN WEIGHTS | | Tower Monopole | 2700 kg (10,000 lb) | | Rotor & Drive train | 920 kg (5,340 lb)
| | | | | DESIGN LIFE | | 25 Years | | | | DESIGN STANDARDS | | Designed in accordance with: | 98/37/EC The Machinery Directive,
73/23/EEC The Low Voltage Directive
89/336/EEC The Electromagnetic Compatibility Directive
| | Applicable Standards: | BS EN 60204-1:1998
BS 5559:1991
BS EN 61293:1995
BS 3535:1990
BS EN 60439:1994
BS EN 60447:1994
BS EN 60073:1997
BS EN 61000-6-2:1999
BS 60034
BS EN 61400-2:2006
| | DOCUMENTATION | Installation Guide and Operation & Maintenance Manual
| | | | SCHEDULED MAINTENANCE | | Semi-annual or after severe events. |
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