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100W Wind Generator
12Vdc, 24Vdc, 48Vdc

Land/Marine Version

 

Ampair 100 Wind Turbine - A complete wind turbine system for land or marine use

The Ampair 100 wind turbine has an unrivalled pedigree as the microwind turbine of choice for absolute reliability for charging battery systems in harsh conditions. Although it only generates up to 100 watts of electrical power in practice it often outperforms so-called 400 watt machines because of its very good low wind speed performance.  Startup wind speed is only 7 mph.

* Generates up to 100 Watts for 12 Volt, 24 Volt or 48 Volt battery systems.
* Designed to survive the severe marine environment.
* Heavy duty, all-weather generator, sealed to keep corrosion out.
* Permanent installation as a fit & forget unit.
* Found in many other applications such as weekend chalets, radio repeaters, navigation equipment or anywhere
   that requires 12v/24v battery charging.
* Save the cost of fuel and the need to run noisy engines. Reduce engine running under light loads.
* Supplement solar charger output with energy that is potentially available day and night; winter and summer.
* Improve battery condition and extend battery lifetime. Increase battery charging out of summer season when
   electrical demand increases but sunlight reduces.
* The Ampair 100 frequently produces in a day what an equivalent costing solar array would take a week to
   accumulate. The only penalty is the need to have a safe and secure mounting in as exposed a location as
   possible .... but just think of all that ENERGY.

 

Technical Specifications

Power Rating 100W max Turbine Blades 36.5 inches diameter
Voltage Options 12Vdc, 24Vdc, 48Vdc Turbine Blades (6) glass filled polypropylene
Output Rectified DC Housing die cast aluminum (powder coated)
Startup Wind Speed 3 m/s, 6 knots, 7 mph Weight 30 lbs

 

Performance

Up to 100 watts of power is developed by the permanent magnet alternator. The design allows the charging of totally flat batteries and prevents reverse current flow due to internal rectifiers. The machine has no commutator brushes to wear out and cannot overheat. It requires no thermal cut-outs or other forms of control to safeguard generator & protect windings from burn-out. Slip rings and brush gear allow the wind turbine generator to seek the wind and feed two wires connecting directly to the battery. 

 

Power output

With the Ampair 100 the output is continuously available. The maximum current automatically flattens out at a safe value, due to self-inductance of the heavy duty windings. Similar sized machines, with low inductance and light duty windings, have to be protected against burnout by the use of temperature activated cut-out switches which interrupt charging. CHECK performance figures of alternative machines which only give best case figures while concealing reduced average output when machine is in cut-out mode. Ampair current (Amps) values are continuous.

* Halve amp values for 24V generator.
* Charging values decrease only slightly with rising battery voltage.
* For Amp Hours per day, multiply charging current at average location wind speed by 24.
* For Amp Hours per week multiply by 168.
* For Watt Hours multiply Amps by 12.5V by hours.
* Wind speed: 1 Knot = 0.5m/sec, 1 Knot = 1.152 mph
* This generator can charge a battery simultaneously with other sources such as solar panels and
   an engine driven alternator.

DC cable length and voltage drop must be evaluated carefully when laying out system.  Click here for our simple voltage drop calculator.

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Reliability

A highly reliable microwind turbine is especially important for unattended and remote installations. In the Ampair 100 this is achieved by the extreme simplicity of the direct drive alternator and total sealing of internal electrical and mechanical parts. It is built to professional standards and easily outlasts cheap and lightweight alternatives. Offers superior value for money. In ten years of coastal operation, an Ampair microwind generator does as many revolutions as the engine of a car on a one million mile journey!

 

Materials, and low temperature operation

Excellent corrosion resistance is achieved by the exclusive use of aluminum alloy, stainless steel and plastic materials for all external parts, backed up by the comprehensive use of elastomer seals and topped off by a baked white paint finish. Plastic materials do not perform well in extreme cold, becoming brittle and breaking. This applies to wind turbine blades, whether glass filled or not. Operation at around zero Centigrade should not be a problem, but most materials are vulnerable at -20C and cannot be warranted to survive. The Ampair 100 uses glass filled polypropylene blades, molded with large sized fibers in a compression process, which are superior to nylon, carbon polymer or other plastics in this respect. However, when icing is also considered, the prediction of blade reliability is even more difficult. Other materials are also suspect. Examples are Nitrile used in exposed seals and 0-rings and basic PVC cable sheathing. For this reason Ampair uses Neoprene components where possible. Grease used in sealed bearings allows performance to -30C or below, but component tolerances (ball and ring) can lead to greater friction and increased wear causing reduced bearing life. If desired Ampair can quote for special components to operate in Arctic/Antarctic conditions.

 

Maintenance and Recommended Spare Parts

The Ampair 100 is designed so that users can strip it down in the field and replace those components that wear out over time or that become damaged in accidents. In remote locations or on long sailing voyages accidental damage is always a possibility. We suggest that two spare wind turbine blades be carried. Other spares to consider are: Pivot Seal, Shaft Seal, Set of Brushes and Caps.  Recommended short-term and long-term spare parts are listed below.

Short-Term Spares Long-Term Spares
A00-SP-30 Pivot Seal A01-SP-21 Shaft Fasteners, Nyloc L/H, SS Washer, Dowel Pin
A01-SP-11 Shaft Seal A01-SP-22 Rectifier Assembly
A01-SP-12 Brush Set A01-SP-24 Shaft Bearings
A01-SP-14 Blade Set A01-SP-26 Hub Extractor
A00-SP-31 Pivot Bearing Set (upper & lower, O-ring, spiral lock ring)

 

Mounting options

Ampair manufactures a range of mountings for the Ampair 100. Some are only intended for use on boats, some are only intended for use on land, and some can be employed in both situations.  The unit with adaptor mounts on 48mm (1.89") O.D. pipe.

 

For additional details click the catalog thumbnail above or click this link for the full catalog.

 

 

 

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