AIR Owner's Manual

AIR 40, AIR Breeze, AIR 30, AIR X MARINE and AIR SILENT-X are trademarks of Primus Wind Power 2013 Primus Wind Power Inc. AIR Owner’s Manual 3-CMLT-2020-A 23
AIR WIRE SIZING
All electrical systems lose energy due to resistance in the wires.
• Large wires have less resistance but are more costly.
• Resistance losses increase with increasing current. High wind sites will bene-
t from using a larger size wire to take advantage of the greater power pro-
ducon potenal.
• Conversely, in low wind sites it may not be cost eecve to increase the
wire size.
The following wiring sizes provide maximum annual energy losses of 4% or less
for sites with a 12 mph average wind speed (assuming the standard Rayleigh
distribuon of wind speeds) which is sucient for most sites.
To determine the size wire, measure the distance from the baeries to your AIR
wind turbine; including tower height. Reference the chart matching your system
voltage and number of turbines and select the wire size.
We recommend these as the minimum wire sizes; for opmal perfor-
mance use the largest wires that are praccal and aordable. Wire con-
necons (e.g. splices, etc.) also contribute addional resistance in the
overall wire run. Care should be taken to insure all connecons are se-
cure.
It is recommended that turbines installed in corrosive environments (e.g.
marine/saltwater) should use nned copper wiring. It is also recommend-
ed to use “stranded” wire for all AIR installaons (“green” ground wire
can be solid wire as needed).
NOTE: Local, state, and naonal electrical codes have precedence over
these recommendaons and must be followed to ensure the safety of
your system.
Note: Wiring Resistance and Regulaon
Depending on your exact system conguraon including other charging
sources in your system, wiring resistance may aect the regulaon set
point of the turbine. Higher wiring resistance (smaller wires) will tend to
lower the voltage at which the turbine enters regulaon and stops charg-
ing. The recommended wiring sizes should provide lile eect on the reg-
ulaon set point, but all installaons should be observed over me to
ensure that the baeries are charged to the proper voltage.
IMPORTANT: Install overcurrent protecon accordance with CEC
and NEC.
TIP: Smaller wires will lower the voltage at which the AIR wind
turbine enters regulaon and stops charging.