[RE-wrenches] Battery Charger

[Orion Thornton]

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

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

 

 

 

 

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