Windy Nation Windtura 750 Wind Turbine Generator - Manual (Page 14)

14
Locating a Site for the Windtura 750
If mounted incorrectly, trees, buildings and other tall objects will block the wind available to all
wind turbines. For best performance of the Windtura 750, it is necessary to mount it 20 feet
above all objects within a 100 foot radius. Failure to do this will negatively affect the power
output of the Windtura 750. Note that this general rule is necessary for all wind turbines. A
roof mounted wind turbine will always perform worse than a wind turbine that is 20 feet above
all objects within 100 feet.
Main Operational Characteristics of the Windtura 750
Electricity production and regulation:
The Windtura 750 produces energy by capturing kinetic energy from the wind. The wind
is captured by three blades which use the wind’s kinetic energy to rotate a three phase AC
permanent magnet alternator. The rotation of the permanent magnet alternator (PMA)
produces electrical power which is transferred from the PMA to ground level by three electrical
wires.
In general, at ground level the three phase alternating current (AC) produced by the
PMA is rectified to direct current (DC). This is accomplished by using a three phase bridge
rectifier. WindyNation sells an 80 amp three phase bridge rectifier suitable for this task. Once
the three phase AC is rectified to DC, the electricity is generally used to (1) charge a 12 or 24
volt battery bank or (2) feed a grid tie inverter. The majority of customers use the Windtura 500
to charge 12 or 24 volt battery banks.