Entegrity EW50 Wind Turbine
The EW50 is a 50 kilowatt wind turbine generator - formerly the Atlantic Orient
Corporation AOC 15/50 - designed to replace grid supplied energy or supplement electric
power generation off-grid. Subject to the wind regime of a site, the EW50 is suitable
in any of the following applications:
The Entegrity wind turbine is also an approved product under the Department for
Business, Enterprise and Regulatory Reform's (BERR - formerly the DTi) Low Carbon
Building Programme (LCBP) grant scheme.
The EW is also eligible for 5% VAT and the recent consultation paper on the Renewable
Obligation Certificates (ROC's) recommends that turbine >50kW should qualify
for double ROC which should come into effect soon.
The technical specification is detailed below and this is also available to download
as a PDF file.
Download Entegrity EW50 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
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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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15 m (49.2 ft)
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Centerline Hub Height
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25 m (82 ft)
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PERFORMANCE PARAMETERS
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Rated Electrical Power
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50 kW @11.3 m/s (25.3 mph)
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Wind Speed Ratings:
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cut-in
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4.6 m/s (10.2 mph)
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shut-down (high wind)
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22.4 m/s (50 mph)
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design speed
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59.5 m/s (133 mph)
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Calculated Annual Output @ 100 % availability
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5.4 m/s (12 mph) 85,000 kWh
6.7 m/s (15 mph) 145,000kWh
8.0 m/s (18 mph) 199,000 kWh
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ROTOR
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Type of Hub
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Fixed Pitch
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Rotor Diameter
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15 m (49.2 ft)
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Swept Area
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177 m² (1902 ft²)
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Number of Blades
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3
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Rotor Solidity
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0.077
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Rotor Speed @ rated wind speed
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65 rpm
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Location Relative to Tower
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Downwind
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Cone Angle
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6º
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Tilt Angle
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0º
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Rotor Tip Speed
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50 m/s (111 mph) @ 60 Hz
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Design Tip Speed
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6.1
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BLADE
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Length
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7.2 m (23.7 ft)
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Material
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Epoxy /glass fibre
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Blade Weight
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150 kg (330 lbs) approximate
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GENERATOR
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Type
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3 phase/4 pole asynchronous
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Frequency
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50 Hz
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Voltage
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3 phase @ 50 Hz, 400-600 VAC
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kW @ Rated Wind Speed
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50 kW
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kW @ Peak Continuous
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55 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 shafting -40°c
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TRANSMISSION
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Type
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Planetary
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Housing
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Ductile iron
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Ratio (rotor to gen. speed)
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1 to 28.25 (60 Hz)
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Rating, output horse power
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88
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Lubrication
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synthetic gear oil/non toxic
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Heater (option)
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Arctic version, electric
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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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Yaw damp
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Electrical
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Twist cable
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TOWER
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Type
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Free standing galvanized bolted lattice or Monopole
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Tower Height
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30 m (100 ft)
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Options
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24.4 m (80ft)
Monopole (various heights)
Tilt down
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EW50 Estimated Annual Energy Output
60 Hz and 50 Hz curves
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FOUNDATION
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Type
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Concrete pads, piers or special
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CONTROL SYSTEM
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Type
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Microprocessor based
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Communications
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Ethernet/Internet link to for energy monitoring and maintenance dispatch
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Enclosures
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NEMA 1, NEMA 4 (optional)
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Soft Start
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Optional
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ROTOR SPEED CONTROL
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Running
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Passive stall regulation
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Start up
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Aerodynamic
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Shut-down
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Aerodynamic tip brake. Parking brake for servicing
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BRAKE SYSTEM CONTROL
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Fail-safe aerodynamic and parking brakes
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APPROXIMATE SYSTEM DESIGN WEIGHTS
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Tower Lattice
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3,210 kg (7,080 lb)
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Tower Monopole
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4535 kg (10,000 lb)
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Rotor & Drive train
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2,420 kg (5,340 lb)
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DESIGN LIFE: 30 Years
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DESIGN STANDARDS: Applicable Standards, AWEA, and IEC
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DOCUMENTATION: Installation Guide and Operation & Maintenance
Manual
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SCHEDULED MAINTENANCE: Semi-annual or after severe events.
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