<font face="arial" size="4"><p style="margin:0;padding:0;font-family: arial; font-size: 14pt; word-wrap: break-word;">im not sure how the "brand-x" inverters work, but my home system's gvfx3648 suffers from high line voltage, where often when selling at max, the line voltage at the inverter will creep up to the 130 vac limit. when this happens, the inverter doesn't cycle off and on as suggested below, but it actually throttles back on selling current to keep the voltage below the 130 vac limit. this raises the battery voltage until the charge controller throttles back on the incoming pv current to match.</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 14pt; word-wrap: break-word;">todd</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 14pt; word-wrap: break-word;"><br /><br />On Saturday, January 24, 2015 8:17am, "Christopher Warfel" <cwarfel@entech-engineering.com> said:<br /><br /></p>
<div id="SafeStyles1422124324"><tt>Thank you, I will see if that is the solution and get back to either way. Chris</tt><br />
<div class="moz-cite-prefix">On 1/23/2015 3:39 PM, <a class="moz-txt-link-abbreviated" href="mailto:Jarmo.Venalainen@schneider-electric.com">Jarmo.Venalainen@schneider-electric.com</a> wrote:</div>
<blockquote><span style="font-family: sans-serif; font-size: small;">Hi:</span> <br /><br /><span style="font-family: sans-serif; font-size: small;">From your description of the problem and the video, I suspect the problem is due to:</span> <br /><br /><span style="font-family: sans-serif; font-size: small;">1. The inverter is exporting very near full power.</span> <br /><span style="font-family: sans-serif; font-size: small;">2. The grid voltage rises which at the same AC current results in larger export power flow above the inverters limit.</span> <br /><span style="font-family: sans-serif; font-size: small;">3. The inverter stops exporting due to reaching its power limit</span> <br /><span style="font-family: sans-serif; font-size: small;">4. The inverter again starts exporting.....</span> <br /><span style="font-family: sans-serif; font-size: small;">5. Reaches power limit and stops.</span> <br /><span style="font-family: sans-serif; font-size: small;">6.etc.......</span> <br /><br /><span style="font-family: sans-serif; font-size: small;">I.E. since the inverter is working close to its power limit on a grid with fluctuating voltage, it goes in and out of max power limit. </span> <br /><br /><span style="font-family: sans-serif; font-size: small;">One way to test if this is the cause is to reduce the Sell Amps so that you are not operating at the power limit of the inverter.</span> <br /><br /><span style="font-family: sans-serif; font-size: small;">JARMO<br /></span><span style="color: #008000; font-size: medium;">_____________________________________________________________________________________</span><span style="font-size: medium;"> <br /></span><span style="font-family: Arial; font-size: xx-small;"><strong><br /> Jarmo Venalainen</strong> | </span><span style="color: #008000; font-family: Arial; font-size: xx-small;"><strong> Schneider Electric </strong></span><span style="font-family: Arial; font-size: xx-small;"><strong> | Solar Business</strong> | <strong>CANADA</strong> | <strong>Training & Development Specialist - Senior</strong> <strong><br /> Phone:</strong> +604-422-2528 | <strong>Fax:</strong> +604-420-1591 | <strong>Mobile:</strong> +604-505-0291 <strong><br /> Email:</strong> </span><a href="mailto:jarmo.venalainen@schneider-electric.com"><span style="color: blue; font-family: Arial; font-size: xx-small;"><span style="text-decoration: underline;">jarmo.venalainen@schneider-electric.com</span></span></a><span style="font-family: Arial; font-size: xx-small;"> | <strong>Site:</strong></span><a href="http://www.sesolar.com/" target="_blank"><span style="color: blue; font-family: Arial; font-size: xx-small;"><span style="text-decoration: underline;"> www.SEsolar.com</span></span></a><span style="font-family: Arial; font-size: xx-small;"> | <strong>Address:</strong> 3700 Gilmore Way, Burnaby, BC V5G4M1 <br /></span><span style="color: blue; font-family: Arial; font-size: xx-small;"><span style="text-decoration: underline;"><br /></span></span><a href="http://%20www.sesolar.com/"><img src="cid:part3.00020005.09000602@entech-engineering.com" alt=""></a><span style="font-family: Arial; font-size: xx-small;"><br /> *** Please consider the environment before printing this e-mail</span><span style="font-size: medium;"> <br /></span> <br /><br /><br />
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<td><span style="color: #5f5f5f; font-family: sans-serif; font-size: xx-small;">From:</span></td>
<td><span style="font-family: sans-serif; font-size: xx-small;">Christopher Warfel <a class="moz-txt-link-rfc2396E" href="mailto:cwarfel@entech-engineering.com"><cwarfel@entech-engineering.com></a></span></td>
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<td><span style="color: #5f5f5f; font-family: sans-serif; font-size: xx-small;">To:</span></td>
<td><span style="font-family: sans-serif; font-size: xx-small;"><a class="moz-txt-link-abbreviated" href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>, </span></td>
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<td><span style="color: #5f5f5f; font-family: sans-serif; font-size: xx-small;">Date:</span></td>
<td><span style="font-family: sans-serif; font-size: xx-small;">01/23/2015 12:07 PM</span></td>
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<td><span style="color: #5f5f5f; font-family: sans-serif; font-size: xx-small;">Subject:</span></td>
<td><span style="font-family: sans-serif; font-size: xx-small;">[RE-wrenches] Schneider 6048 power output fluctuating widely</span></td>
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<td><span style="color: #5f5f5f; font-family: sans-serif; font-size: xx-small;">Sent by:</span></td>
<td><span style="font-family: sans-serif; font-size: xx-small;">"RE-wrenches" <a class="moz-txt-link-rfc2396E" href="mailto:re-wrenches-bounces@lists.re-wrenches.org"><re-wrenches-bounces@lists.re-wrenches.org></a></span></td>
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<br /><hr noshade="noshade" /><br /><br /><br /><tt><span style="font-size: small;">We installed a XW 6048 that has wide power output fluctuations over <br /> several seconds. Lights flicker, and the inverter squeals. It happens <br /> multiple times in a minute The inverter was replaced to no avail. I <br /> suspect the local utility's poor line maintenance. When the inverter <br /> begins to drop off line, the voltage sags from 123 to 117. This is <br /> still within normal parameters, so I don't understand why the inverter <br /> would begin to power down. Here is a youtube video of it if anyone has <br /> ever seen this before. Schneider has assisted us several times, but <br /> cannot find any reason for this happening as a result of their technology.<br /><br /></span></tt><a href="http://youtu.be/EqMwv44p-lc"><tt><span style="font-size: small;">http://youtu.be/EqMwv44p-lc</span></tt></a><tt><span style="font-size: small;"><br /><br /><br /></span></tt><a href="http://youtu.be/ADaL-gEbj4w"><tt><span style="font-size: small;">http://youtu.be/ADaL-gEbj4w</span></tt></a><tt><span style="font-size: small;"><br /><br /><br /> Thank you, Chris<br /> _______________________________________________<br /> List sponsored by Redwood Alliance<br /><br /> List Address: <a class="moz-txt-link-abbreviated" href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br /><br /> Change listserver email address & settings:<br /></span></tt><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org"><tt><span style="font-size: small;">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</span></tt></a><tt><span style="font-size: small;"><br /><br /> List-Archive: </span></tt><a href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html"><tt><span style="font-size: small;">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</span></tt></a><tt><span style="font-size: small;"><br /><br /> List rules & etiquette:<br /></span></tt><a href="www.re-wrenches.org/etiquette.htm"><tt><span style="font-size: small;">www.re-wrenches.org/etiquette.htm</span></tt></a><tt><span style="font-size: small;"><br /><br /> Check out or update participant bios:<br /></span></tt><a href="www.members.re-wrenches.org"><tt><span style="font-size: small;">www.members.re-wrenches.org</span></tt></a><tt><span style="font-size: small;"><br /><br /><br /> ______________________________________________________________________<br /> This email has been scanned by the Symantec Email Security.cloud service.<br /> ______________________________________________________________________<br /></span></tt> <br /><br /><br /><fieldset class="mimeAttachmentHeader"></fieldset><br />
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<p class="moz-signature" style="margin:0;padding:0;">--
Christopher Warfel, President
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
401-466-8978</pre>
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