BRAUN Windturbinen GmbH

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Technical Specifications ANTARIS 3.5 kW


  • 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. 100 rpm
  • Power: 3700 watts at 420 rpm and 400 VDC
  • Evenly rising power curve
  • Weight: 31kg
  • Aluminium housing, surface cooling, base anchoring
  • Gondola housing in GRP
  • Protection class IP56


  • 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
  • Winglets on blade tips to minimise noise
  • Approx. 3.50 m in diamater (optionally 3.00 m)
  • Weight of each blade: approx. 3.3 kg
  • Dynamically and statically balanced
  • Direction of rotation anticlockwise viewed from front
  • Max. rotational speed 420 rpm
  • GRP spinner cap
  • Rotor colour to client specification

Support element comprising:

  • Wind vane (weatherproof HDPE, off-white, slightly transparent)
  • Square stainless-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 114.3 mm)

Storm protection

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

Control cabinet

  • Control system with voltage monitor
  • 1-phased grid-feed in (1 x Power One PVI 3.6 kW,
    optional 3-phased system with 1 x Smartwind 5.5 kW)
  • Control electronics with 3-phased turbine controller
  • Connections / plug connectors protected against polarity reversal
  • Controlling of the alternator phases during turbinemode
  • Reset switch with key (removable)
  • Emergency-OFF switch
  • 3.5 kW braking resistance
  • Rectifier, display etc.

The Antaris is, of course, also available as a battery charger, 48 VDC, with a power output of 3000 W.
The relevant rotational-speed diagrams for battery charging / grid-connected operation will be included in our quotation.[/vc_column_text][/vc_column][vc_column width=“1/2″][vc_column_text]

ANTARIS 3.5 kW Power curve
ANTARIS 3.5 kW Power curve

ANTARIS 3.5kW Schallpegelmessung bei 35m Distanz
Sound level measurement from the ANTARIS Windturbine 35m from the mast[/vc_column_text][/vc_column][/vc_row]

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