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Forum Index : Electronics : are voltage reducers to inverters safe?

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goldhunter_2

Regular Member

Joined: 10/03/2010
Location: United States
Posts: 57
Posted: 06:18pm 03 Apr 2013
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quick question I ran across a good deal on two ProWatt 3000/5000 surge inverters the problem is they take a 12v input I want to run a 48v battery bank or at least 24volt (haven't bought batteries yet)I know there will be some power loss in the reduction BUT is it safe to use a Voltage reducer form the 48v battery to the 12v inverter? I know power wise it should work but I'm worried that a continuous draw through the reducer may be a issue ............ has anyone else done this???

planing for these two inverters to handle 60% or so of my homes load then leave the big stuff still on the grid for now but they would still get some heavy use


I don't want to pass up the deal at this price if it is safe to do




 
Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5078
Posted: 07:25pm 03 Apr 2013
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The problem is the reducer would need to handle some serious amps. If you wanted to draw 3000 watts from the ProWatt inverter, then it will need 250 amps at 12v

I don't think you will find a reducer that could even come close to that sort of current.

You would be better off rearranging your battery bank as a 12v supply instead of 24 or 48 volts.

A better option would be purchasing a 48 volt inverter. At 3000 watts, it would be drawing 62 amps, much less than as 12 volt inverter. Less amps also means you can use smaller cable from the batter bank to the inverter.

Glenn
The best time to plant a tree was twenty years ago, the second best time is right now.
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goldhunter_2

Regular Member

Joined: 10/03/2010
Location: United States
Posts: 57
Posted: 03:51am 04 Apr 2013
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ok thanks I was afraid that was going to be the case I guess I'll just wait an buy a 48v inverter

thanks for the help
 
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