<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hiya John,<div>If this is something you need inspected and if you are using an inverter which has a voltage controlled AUX relay, dump ac into a very small cube heater using the AUX to turn a larger relay on and off. I would certainly recommend a solid state "hockey puck" relay rated for DC as some of those AUX controls will switch on and off quickly creating a PWM effect. I hate to admit to this in public, but I found an ideal 3C (Cheap Chinese Crap) cube heater in Walmart which as a 200W setting. Sometimes ya gotta do what ya gotta do...</div><div>If you don't need UL and want to roll yer own, it would be good to know just how many amps you are dumping and at what voltage. Assuming abut 55.2V (13.8V x 4) and further assuming that you need a full 150W dumped, that would mean your hydro was putting out about 2.73A@55.2V. That, in turn, gives us a resistance value of about 20Ω. Good old ohm's law... You'll want to us a PWM controller such as a C-40. Then the trick is in finding the right resistor or (far more likely) combo of power resistors of the right ohm value to handle the wattage. Kinda hard to find these days. A quick search didn't come up with anything yummy, but I did find this nifty Parallel Resistor Calculator with saves time and brain cells. <a href="http://www.1728.org/resistrs.htm">http://www.1728.org/resistrs.htm</a></div><div>Good Luck, bob-O</div><div><br></div><div><br></div><div><div><div><div>On Aug 8, 2013, at 11:19 AM, John Blittersdorf wrote:</div><br class="Apple-interchange-newline"><div bgcolor="#FFFFFF"><div>Any ideas what to use for a small mice hydro dump load?</div><div><br></div><div>John</div><div>Cvsolar<br><br>Sent from my iPhone</div><div><br>On Aug 8, 2013, at 2:15 PM, Bob-O Schultze <<a href="mailto:bob-o@electronconnection.com">bob-o@electronconnection.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>Then again, SOME of us don't buy Chinese goods.<div><br><div><div>On Aug 8, 2013, at 9:53 AM, Ryan wrote:</div><br class="Apple-interchange-newline">
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To echo Tom the XW is probably the best product for the job. <br>
<br>
Ryan<br>
<span><Mail Attachment.jpeg></span><br>
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<div class="moz-cite-prefix">On 8/8/2013 12:49 PM, Tom Duffy wrote:<br>
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<div class="WordSection1"><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:black">William<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:black"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:black">How
about the Schneider XW4024 or if 48 volt a XW4548? It’ll
sand alone now with gen and later grid-tie<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:black"><o:p> </o:p></span></p>
<div><p class="MsoNormal"><span style="font-family:"Arial
Rounded MT Bold","sans-serif";color:black">Tom
Duffy<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial Rounded MT
Bold","sans-serif";color:#009900">Senior
Solar Design Engineer<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial
Rounded MT Bold","sans-serif";color:black"><span><Mail Attachment.png></span><o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial
Rounded MT
Bold","sans-serif";color:#006600">Toll Free
888-895-8179<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial
Rounded MT
Bold","sans-serif";color:#006600"><a moz-do-not-send="true" href="mailto:tom@thesolar.biz">tom@thesolar.biz</a><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial Rounded MT
Bold","sans-serif";color:#CC6600">Customer
Service and Accounting
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<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial Rounded MT
Bold","sans-serif";color:#CC6600">Grid tie
sales
</span><span style="font-size:11.0pt;font-family:"Arial
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sales
</span><span style="font-size:11.0pt;font-family:"Arial
Rounded MT Bold","sans-serif";color:black">888-895-4058</span><span style="font-size:11.0pt;font-family:"Arial Rounded MT
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<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial Rounded MT
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</span><span style="font-size:11.0pt;font-family:"Arial
Rounded MT Bold","sans-serif";color:black">507-6-126-1253</span><span style="font-size:11.0pt;font-family:"Arial Rounded MT
Bold","sans-serif";color:#CC6600">
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Bold","sans-serif";color:maroon">SKYPE:
</span><span style="font-size:11.0pt;font-family:"Arial
Rounded MT Bold","sans-serif";color:black"> thesolarbiz</span><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
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<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in"><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"">
<a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>William Miller<br>
<b>Sent:</b> Thursday, August 08, 2013 10:47 AM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> [RE-wrenches] GFX Series with generator<o:p></o:p></span></p>
</div>
</div><p class="MsoNormal"><o:p> </o:p></p>
<div><p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">Friends:</span><o:p></o:p></p>
</div>
<div><p class="MsoNormal"> <o:p></o:p></p>
</div>
<div><p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">We
a have a client that is off-grid right now but will have a
grid connection in a few months. They need an inverter
that will connect to a generator now and the grid later.
Can the Outback G series inverter do that? How about any
other inverters in the 4Kw range?</span><o:p></o:p></p>
</div>
<div><p class="MsoNormal"> <o:p></o:p></p>
</div>
<div><p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">Thanks
in advance.</span><o:p></o:p></p>
</div>
<div><p class="MsoNormal"> <o:p></o:p></p>
</div>
<div><p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">William</span><o:p></o:p></p>
</div>
<div><p class="MsoNormal"> <o:p></o:p></p>
</div>
<div><p class="MsoNormal"> <o:p></o:p></p>
</div><p class="MsoNormal"><span><Mail Attachment.jpeg></span><o:p></o:p></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">17395
Oak Rd. Atascadero, CA 93422</span><o:p></o:p></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif""><a moz-do-not-send="true" href="http://www.millersolar.com/">www.millersolar.com</a></span><o:p></o:p></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">805-438-5600
voice*</span><o:p></o:p></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">*Note:
above number replaces cell number</span><o:p></o:p></p>
<div><p class="MsoNormal"> <o:p></o:p></p>
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_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Change email address & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a><br><br>Check out participant bios:<br><a href="http://www.members.re-wrenches.org/">www.members.re-wrenches.org</a><br><br></div><br></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>List sponsored by Home Power magazine</span><br><span></span><br><span>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a></span><br><span></span><br><span>Change email address & settings:</span><br><span><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a></span><br><span></span><br><span>List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a></span><br><span></span><br><span>List rules & etiquette:</span><br><span><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a></span><br><span></span><br><span>Check out participant bios:</span><br><span><a href="http://www.members.re-wrenches.org/">www.members.re-wrenches.org</a></span><br><span></span><br></div></blockquote></div>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Change email address & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org<br><br>List rules & etiquette:<br>www.re-wrenches.org/etiquette.htm<br><br>Check out participant bios:<br>www.members.re-wrenches.org<br><br></div><br></div></div></body></html>