[RE-wrenches] High Voltage MPPT units

Darryl Thayer daryl_solar at yahoo.com
Sun Nov 6 19:40:47 PST 2011


Larry. I have used a 600 VAC transfer switch from Sq. D I never had needed for it to be DC; however the insides are similar to the 600 VAC-VDC, it snaps open and snaps closed in both positions.  I will ask my SQ D supplier, he is usually good. 
 
BTW Nice idea, thanks.  
DT  


________________________________
From: "larry at starlightsolar.com" <larry at starlightsolar.com>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Sunday, November 6, 2011 1:45 PM
Subject: Re: [RE-wrenches] High Voltage MPPT units


With 4800 watts and HV input, it seems to me that a simple battery backup can be formed from an existing PV grid tie system. Block diagram attached. Where can one find a 600 volt rated DC transfer switch?

Larry
 
-------- Original Message --------
>Subject: Re: [RE-wrenches] High Voltage MPPT units
>From: John DeBoever <jdeboever at trojanbattery.com>
>Date: Sat, November 05, 2011 6:09 am
>To: "'re-wrenches at lists.re-wrenches.org'"
><re-wrenches at lists.re-wrenches.org>
>
>Todd,
>It is 2,560 Wp for 24V battery banks and 4,800 Wp for 48V battery banks.
>John
> 
>
>From: toddcory at finestplanet.com [mailto:toddcory at finestplanet.com] 
>Sent: Saturday, November 05, 2011 12:42 AM
>To: RE-wrenches <re-wrenches at lists.re-wrenches.org> 
>Subject: Re: [RE-wrenches] High Voltage MPPT units 
> 
> what is the max wattage the unit can handle? (it can't be 80 X 600?)  
>todd    
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