Author Topic: help with converting from 24v to 48v  (Read 2662 times)

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Neil

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help with converting from 24v to 48v
« on: March 30, 2016, 06:52:05 AM »
I want to change from 24 volts to 48 volts, and was just wondering what would be the easiest way of doing it,

Here is what I have :    Solar -  3 strings of 7 panels 245w 30.5volts ea , each string wired in parallel
                                     Charge Controllers - 3 - C60 Xantrex
                                     10ft home brew Gen
                                     Batteries  48 - 2v volt cells
                                     Ozinverter.

I know I will have to make a new stator for the 10ft gen.

I also thought of buying a mppt and just wire all 7 string to it, and reconfigure the batteries for 48volts .

Thanks,
Neil
                                     

XeonPony

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Re: help with converting from 24v to 48v
« Reply #1 on: April 02, 2016, 12:55:41 PM »
You can do all the above, for smaller loads you can get a buck down converter, but the inverter must be replaced for a 48v one if it isn't all ready.
Ignorance is not bliss, You may not know there is a semie behind you but you'll still be a hood ornimant!

Nothing fails like prayer, Two hands clasped in work will achieve more in a minute then a billion will in a melenia in prayer. In other words go out and do some real good by helping!

Neil

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Re: help with converting from 24v to 48v
« Reply #2 on: April 02, 2016, 06:10:35 PM »
Xeonpony,
     wouldn't it be step up converter, or am I thinking of something different?

Neil


XeonPony

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Re: help with converting from 24v to 48v
« Reply #3 on: April 11, 2016, 11:13:39 AM »
You want to switch from 24v to 48v yes?
So when you switch to 48V and put in the 48v inverter, to run your old 24v main system you must use a buck down converted to drive it.

48Vb >Buck down converter> 24V loads
48vb> Inverter
48vb < Solar/wind
Ignorance is not bliss, You may not know there is a semie behind you but you'll still be a hood ornimant!

Nothing fails like prayer, Two hands clasped in work will achieve more in a minute then a billion will in a melenia in prayer. In other words go out and do some real good by helping!

Smithson

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Re: help with converting from 24v to 48v
« Reply #4 on: April 11, 2016, 02:12:43 PM »
I noticed that in Hugh's wind recipe book a 24 v machine is 2@70 turns while a 48v is 1@ 140. If you wired it 2@hand you could change the 2in parallel to one in series.   My thought.   Arch