The wind generator may (in higher wind speeds) be able to produce a
voltage high enough to charge the 48 volt battery.
The wire size shouldn't be an issue, as at 48 volts the wire will see
less current than at 32 volts.
It is likely your wind generator has a piece of electronics or charge
controller associated with it that takes the AC power the generator
makes and converts it to DC output to charge a battery. You will likely
need to modify or replace this piece to successfully charge a 48 volt
battery.
[Perhaps the 32 volt from the wind generator is AC, and a
rectifier/charger was used to step that down to 24 or 14 volt charging?]
Even if the voltage output of the generator is too low to directly
charge the battery, you can purchase a "step up" converter that can take
12-24 volts and step it up to the 48-55 volts needed to charge a 48v
battery. (But will lose some power in the conversion process.)
Jay
On 4/22/19 11:48 AM, Ron Solberg via EV wrote:
Quoting Lee Hart via EV <[email protected]>:
QUESTION ON A PROPOSED 32/48 VOLT DC MIX:
Since I just monitor the EVDL, I have not learned the correct procedures
to post. I hope that jumping in here with a question will be acceptable.
Question: Will a vintage 2800 watt, 32 Volt Jacobs wind generator charge
an L16 FLA, Interstate 48 Volt battery?
The Proposed System:
A 48 Volt DC to 120/240 AC Out Back inverter would be fed by a 4000 or
8000 Watt PV panel. My question then, is it feasible to add the 32 volt
wind plant to charge the battery on a cloudy day?
My hope is that despite the wire size(for 32 volt) of the generator
windings, the generator field will"see" the 48 volt battery in a
positive way. I could adjust the wind plant governor. I see this as an
experiment so I can use all the help I can get should I proceed in that
direction.
The Goal:
Our Tesla Model 3 rejects the AC output of our present tracking 3 KW PV
120DC/120AC system. We plan to add the second, independent, non
tracking system since the Out Back inverter produces a sine wave that is
acceptable to the Tesla as was proven by Jerry lilyerd at Sun Energy.
Thanks for the service you provide,
Ron Solberg
Michael Ross via EV wrote:
Keep in mind that many hand held meters cannot accurately report
mOhms. You
should look up the specs on your meter to see what it is actually
capable
of.
Indeed, most normal meters are inaccurate below about 1 ohm. Their own
lead wires and internal circuitry adds more resistance than that.
There are special meters for measuring very low resistance values
(usually called "milli-ohm" or "micro-ohm" meters. They usually make
4-wire measurements. Four wires connect to the unknown resistance; two
supply a known current, and the other two measure the (tiny) voltage
produced by this current. This method cancels out the resistance of
the wires and connections themselves.
--
Fools ignore complexity. Pragmatists suffer it. The wise avoid it.
Geniuses remove it. -- Alan Perlis, "Epigrams on Programming"
--
Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com[1]
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Links:
------
[1] http://www.sunrise-ev.com
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