[RE-wrenches] Battery Charger

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the issue is NOT the transfer switch but the window that the inverter is
allowed to latch on to the AC input & operate within  the IEEE regulations.
I have yet to find a generator that will latch onto a grid tie inverter. 
The Victron "SKYELLA" Charger will ALSO operate as a Hi current DC power
source AND can be wired in series to meet  your battery sizing & charge
current requirments . 24/48 volt 1/3 Ph 185 - 265 vac 45 - 65 hz
www.victronenergy.com
Contact me off list if you need additional info.
     
 
  

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Orion
Thornton
Sent: Tuesday, September 29, 2009 10:49 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Battery Charger



There is an existing automatic transfer switch-isolating the grid and
feeding in the generator.

 

Orion 

 

 

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of
toddcory at finestplanet.com
Sent: Monday, September 28, 2009 6:29 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Battery Charger

 

I am curious how you connect a generator to the GVFX? It only has one AC
input that us used for the grid.

Todd

On Monday, September 28, 2009 11:43am, "Orion Thornton"
<othornton at solarips.com> said:

Wrenches,  

 

We recently installed a grid-tie battery backup system using two Outback
GVFX 3648 inverters.  The client has an existing Generac backup generator, 8
kW @ 240VAC.  From the beginning we told the client that the power quality
from the Generac may not be within tolerance to integrate with the grid-tie
inverters and charge batteries.  This assumption was confirmed today when we
commissioned and tested the system.  The output frequency of the Generac was
58 hz.

 

To get to the point does anyone have a battery charger they recommend for
this application?-8 kW @ 240VAC generator output to 48VDC battery bank.  Or
maybe another suggestion to be able to integrate the generator into the
system, we are also planning on manually transferring the generator output
to power the critical loads if an inverter goes down.

 

It also seems that the dc genset controls through the mate would be the best
way to control the battery charger-any thoughts?

 

Thanks in advance for any input.

 

Orion Thornton

Project Manager

Independent Power Systems

NABCEP Certified PV Installer

(W) 406.587.5295

(C)  406.249.9912

www.solarips.com <http://www.solarips.com/> 

 

 

 

 

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