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   alt.energy.homepower      Electrical part of living of the grid      2,576 messages   

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   Message 2,049 of 2,576   
   zwgearbox@gmail.com to All   
   Re: Source for 48 volt Alternator?   
   22 Sep 15 23:02:24   
   
   在 2007年6月7日星期四 UTC+8上   
   12:10:05,Ulysses写道:   
   > Hi.   
   >    
   > Being very unhappy with using the built-in chargers in my new Outback   
   > inverters I'm considering using a small engine to run a 48 volt alternator   
   > for charging my battery bank but I can't seem to find any.  Are these   
   > standard equipment on some kind of industrial machines such as fork lifts or   
   > tractors or whatever?  Anyone have any links?  I'm thinking 40-50 amps would   
   > probably be about right.   
   >    
   > I'm also considering various chargers that could be ran from a generator.   
   > It turns out that if a 2:1 step-down transformer was used 1/2 of 115 volts   
   > just happens to be almost exactly the right voltage for bulk charging a 48   
   > volt bank.  After rectifying this will probably change but I'm thinking it   
   > might be possible to adjust the voltage by simply changing the engine speed   
   > a little.  Equalization might also be possible.   
   >    
   > I looked at 48 volt battery chargers and Iota with the IQ4 seems to be the   
   > best choice (that's affordable anyway) but their 48 volt charger is only 15   
   > amps unless you get two 24 volt chargers and connect them in series and then   
   > it starts getting pricy again.  Building a power supply to feed into the   
   > MX60 charge controller does not seem to be an option but if it could be done   
   > then the 3-stage charging and equalization would all be figured out already.   
   >    
   > I turned my first Honda eu2000 into a belt-drive generator head but I can't   
   > seem to find the DC output going to the inverter.  I don't know the voltage   
   > that it uses but I figured it was worth a look on the off-chance it might be   
   > in the right range.   
   >    
   > Thanks.   
      
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