<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>Try menu 11.. Ac input.<br></div><div><br></div><div><br>Dan Brown<br>Foxfire Energy Corp.<br>Renewable Energy Systems<br>(802)-483-2564<br><a href="http://www.Foxfire-Energy.com">www.Foxfire-Energy.com</a><br>NABCEP #092907-44</div><div><br><br></div>
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-------- Original Message --------<br>
Subject: [RE-wrenches] Low grid voltage fix<br>
From: "Joel Davidson" <<a href="mailto:joel.davidson@sbcglobal.net">joel.davidson@sbcglobal.net</a>><br>
Date: Sun, December 19, 2010 12:24 pm<br>
To: "RE-wrenches" <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
<br>
Wrenches,<br>
<br>
It's Christmas time again in Southern California Edison (SCE) territory <br>
which means low insolation and high regional electric consumption. Every <br>
night SCE voltage drops to around 105 VAC or lower. Our grid-tie SW4048 <br>
inverter sees SCE's low voltage as a brownout and switches to autonomous <br>
mode which is normal. However, we have only 4 kWh of battery storage so the <br>
combination of nightly brownouts and a series of cloudy days eventually <br>
depletes our battery bank causing the inverter to do a low-voltage shut down <br>
which is normal. Power goes off in our home and we have to switch over to <br>
SCE power, reset the inverter, and wait until the battery bank is recharged. <br>
How do we set the SW4048 to accept as low as 100 VAC from the grid before <br>
switching to autonomous mode?<br>
<br>
Joel Davidson <br>
<br>
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