Technical Specifications ANTARIS 7.5 kW

Working grid feed in at 2.5 m/sec wind speed after start up, depending on the repeller. Purpose built for inland areas with low untill moderate wind speed. From an average wind speed with 6.5 m/sec. we use a repeller with 4.40 m diameter!

Generator

• Permanent-magnet rotor, brushless, gearless, maintenance-free
• Extremely strong permanent magnets for a high level of efficiency (NdFeBo permanent magnets, resistent to temperatures up to 150° C)
• Special ball bearings for reliably taking up radial and axial forces
• 3-phase current
• Separate rectifier
• Either direction of rotation
• Voltage 0-1000 VDC
• Start of feed-in at approx. 75 rpm
• Power: 7.500 watts at 330 rpm and 400 VDC
• Evenly rising power curve
• Weight: 87 kg
• Aluminium housing, surface cooling, base anchoring
• Protection class IP56

Rotor

• Hub connection with aluminium flange and pressure-relief plate
• Stainless-steel screw connections with locknuts
• Three rotor blades in glass-fibre / carbon-fibre laminate
• Computer-designed aerodynamic profile
• Special blade design to minimise noise
• Approx. 5.30 m diamater (optionally 4.40 m > 6.5 m/s average wind speed)
• Weight of each blade: approx. 9.2 kg
• Dynamically and statically balanced
• Direction of rotation anticlockwise viewed from front
• Max. rotational speed 300 rpm
• GRP spinner cap
• Rotor colour to client specification

Support element comprising

• Wind vane (weatherproof HDPE, off-white, slightly transparent)
• Square hot galvanized steel tube as support element
• All screw connections in stainless steel and fitted with locknuts
• Steel bracket as support for generator, configured for plug-in connection with azimuth bearing, fully galvanised
• Protected by patented rotor-blade positioning system
• Mast adapter with flange connector (tube 139 mm)

Storm protection

• Rotor-blade positioning (“helicopter position”)
• Voltage monitoring with 12.0 kW braking resistance
• Generator short-circuit

Control cabinet

• Control system with Turbine Power Curve
• 3-phased grid-feed in with Smart!wind Inverter 7.5 kW
• Control electronics with 3-phased turbine controller
• Connections / plug connectors protected against polarity reversal
• Controlling of the 3 alternator phases during turbinemode
• Reset switch with key (removable)
• Emergency-OFF switch
• 6.5 kW braking resistance
• Rectifier, display etc.

ANTARIS 7.5 kW with 5.10m Repeller

ANTARIS 7.5 kW Power curve

ANTARIS 7.5 kW Powercontrolling via Webinterface (Turbinepower @ 11m/s Windspeed)

ANTARIS 7.5 kW production scheme
(Blue = Power per day, Red = Peak Power)

3-phased Grid Power 5.763 W @ 9.6 m/s Windspeed.
With a swept area from 22.05m² the efficience from the complete system, is 46%.