Whisper 500 Battery Charging Manual
Document #0023 Rev C
SOUTHWEST WINDPOWER
April 2006
8
Controller to Wind Generator Wiring
Southwest Windpower strongly recommends connecting the controller to the batteries prior to connecting the
wind generator to the controller.
After connecting the controller to the batteries proceed by connecting the three wires from the wind generator
to the controller as shown below. Note that the order of the wires is not important. Any wire from the wind
generator may be installed in any of the wind generator input terminals.
Note: Refer to the following section to install the Brake Switch in parallel with the
Whisper 500 and the Whisper Controller.
The size of the wire required to connect the Whisper Controller to the wind generator is determined by the
power produced by the generator, system voltage and the distance between the generator and controller.
Distances are one way and should include the height of the tower.
Refer to the accompanying charts to determine the correct wire size for your system. The wire sizes listed in
the charts provide a 95% transmission efficiency in an area with a 12 mph average wind speed.
To use the charts measure distance from Whisper Controller to wind generator. Find the closest distance
listed in the column for your system voltage and read the wire size to the left of the distance.
Note if your measured distance is nearly midway between two distances on the chart it is probably best to
select the larger size wire. This is particularly true in areas with higher wind speeds. Distances are listed in
both feet and meters.
Wind Generator Input Terminals
Connect three wires from wind generator to
terminals. Order of connection is not important.
