Westwind - 20kW Wind Turbine
Westwind Wind Turbines in Northern Ireland, formerly Perth Australia, manufactures
3kW, 5kW, 10kW & 20kW turbines suitable for on and off grid installations. The
turbines are built to a high standard with an excellent finish, not always found
in the micro market. What's also impressed us is that most of the components are
fabricated on or near site, thereby reducing supply chain issues.
All Westwind wind turbines consist of three blades, up-wind of the tower on a horizontal
axis and attached directly to a sealed permanent magnet generator. Having no gearbox
means that there are less part's to wear and less friction to be overcome by the
blades. Resulting in earlier start-up in light winds, more power produced and less
maintenance than designs using gearboxes.
In particular, we have focused on their two larger turbines which typically fit
the markets we are active in - private and public sector organisations. The 10kW
and 20kW (nominal) turbines are available on monopole towers ranging from 15 - 24m
and they could suit applications such as:
- Light industry
- Out of town retail
- Large farms
- Communities
- Local authorities
- Schools
- Remote locations
The technical specification is detailed below and this is also available to download
as a PDF file.
Download Westwind technical specification
For further information such as foundation and tower design, noise data, etc or
to discuss your requirements in more depth, please contact
us.
Download our wind turbine enquiry form
Technical specification - 20kW
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SYSTEM
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Type
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3 Φ Grid Connected
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Configuration
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Horizontal Axis
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Rotor Diameter
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10 m (32.8 ft)
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Centerline Hub Height
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15, 18, 24 and 30 m (49.2, 59.0, 78.7 and 98.4 ft)
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PERFORMANCE PARAMETERS
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Rated Electrical Power
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20 kW @14 m/s (25.3 mph)
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Wind Speed Ratings:
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cut-in
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3 m/s (10.2 mph))
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shut-down (high wind)
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18 m/s ( 61 mph)
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design speed
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60 m/s (134 mph)
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Calculated Annual Output @ 100 % availability
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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
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ROTOR
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Type of Hub
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Passive Pitch Control
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Rotor Diameter
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10 m (32.8 ft)
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Swept Area
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100 m² (1076 ft²)
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Number of Blades
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3
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Rotor Solidity
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0.05
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Rotor Speed @ rated wind speed
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160 rpm nominal (variable)
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Location Relative to Tower
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Upwind
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Cone Angle
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0º
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Tilt Angle
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6º
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Rotor Tip Speed
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84 m/s (188 mph) @ 160 rpm
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Design Tip Speed
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6
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BLADE
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Length
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5 m (16.4 ft)
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Material
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Carbon and glass fibre reinforced plastic
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Blade Weight
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25 kg (330 lbs) approximate
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GENERATOR
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Type
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3 phase/36 pole synchronous
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Frequency
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50 Hz variable
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Voltage
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3 phase @ 50 Hz, 240-380 VAC
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kW @ Rated Wind Speed
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20 kW
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kW @ Peak Continuous
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25 kW
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Insulation
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Class F
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Enclosure
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Totally Enclosed Air Over
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Options
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Arctic low temp -40°c
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YAW SYSTEM
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Normal
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Free, passive
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Optional
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Furl damp
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Electrical
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Slip ring brush set
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TOWER
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Type
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Free standing galvanized monopole
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Tower Height
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15/18/24/30 m
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Options
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Towers with guy wires & gin pole
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FOUNDATION
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Type
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Concrete pads
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CONTROL SYSTEM
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Type
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Electronis, passive pitch regulation and passive side furling
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ROTOR SPEED CONTROL
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Running
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Passive pitch regulation
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Start up
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Aerodynamic
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Shut-down
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Aerodynamic and manual furling
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APPROXIMATE SYSTEM DESIGN WEIGHTS
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Tower Monopole
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2700 kg (10,000 lb)
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Rotor & Drive train
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920 kg (5,340 lb)
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DESIGN LIFE
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25 Years
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DESIGN STANDARDS
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Designed in accordance with:
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98/37/EC The Machinery Directive,
73/23/EEC The Low Voltage Directive
89/336/EEC The Electromagnetic Compatibility Directive
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Applicable Standards:
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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
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DOCUMENTATION
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Installation Guide and Operation & Maintenance Manual
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SCHEDULED MAINTENANCE
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Semi-annual or after severe events.
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