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<p class=MsoNormal><span style='color:#1F497D'>There is an existing automatic transfer
switch—isolating the grid and feeding in the generator.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>Orion <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>toddcory@finestplanet.com<br>
<b>Sent:</b> Monday, September 28, 2009 6:29 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Battery Charger<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:13.5pt'><span style='font-size:13.5pt;
font-family:"Arial","sans-serif"'>I am curious how you connect a generator to
the GVFX? It only has one AC input that us used for the grid.<br>
<br>
Todd<br>
<br>
On Monday, September 28, 2009 11:43am, "Orion Thornton"
<othornton@solarips.com> said:<o:p></o:p></span></p>
<p class=MsoNormal>Wrenches, <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>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.<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>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.<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>It also seems that the dc genset controls through the mate
would be the best way to control the battery charger—any thoughts?<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>Thanks in advance for any input.<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Orion
Thornton</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Project
Manager</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Independent
Power Systems</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>NABCEP
Certified PV Installer</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>(W)
406.587.5295</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>(C)
406.249.9912</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><a
href="http://www.solarips.com/">www.solarips.com</a></span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> </span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
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