Nature Power 2000W-48V Marine Grade Wind Turbine (70701) - Manual (Page 16)

14
•Connect the inverter and all other devices directly to the battery bank
posts. Never use the same wires of the turbine to connect other DC
devices (sources or loads), Each device has to be connected directly to
the battery bank posts with its own wires. If the battery bank posts are so
crowded with wires, try to use a junction bar on the posts.
9-5 Grounding:
We recommended installing a 1 or 2 ft (30 or 60cm)long grounding jumper
between the wind turbine bracket hex bolts and the mast. Use AWG # 6
wires with ring crimp terminals (lugs) .The terminal ring inside diameter
should be 3/8 inch or 10 mm. It has to be mounted in between the 2
half-moon brackets and inside one of its 4 hex bolts. Remove the coat of
paint on the contact area and use electrical joint compound. The brackets
have to be tighten fully, otherwise use stainless steel flat washers to fill the
gap. To connect the jumper to the mast pipe, you can use grounding clamps
of the same metal as the pipe itself to avoid galvanic corrosion. Connect
the base of the tower/mast to earth ground, using enough ground rods,
according to the soil conductivity. Try using a single point of ground
“SPG” at the entry of the battery room. It should be connected to a ground
perimeter that uses ground rods. Connect the battery bank negative and
all the indoors units chassis ground to the SPG only, using independent
wires.
Since the turbine typically has to be mounted on a structure (tower, pipe,
etc.) you should take into account the possibility of a lightning strike in
your area that could hit the top of the structure.
Most of the time a lightning ground system super-exceeds the
requirements for a safety ground. However be sure always to meet the
requirements as per the local electric code in both cases. Consult a
certified electrician or technician specialized in both types of grounding
systems.
The customer itself or through a professional contractor, has the
responsibility to meet the local electric code.
Please check periodically the Nature Power website for more information
about grounding.
10. Site Elevation:
An important fact to keep in mind is elevation. The higher the wind
generator is from sea level, the lower the air density. Air density is directly
proportional to the output of your wind generator. Here are some general
numbers to keep in mind when determine the maximum output that can
be expected.