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<div>I don't know if they go all the way up to 10kW in a portable size, but there's a 3.5kW unit in my RV. They have larger ones for bigger RVs. The plus of this unit is that it's also a MPPT bulk charger for the coach battery bank, so it works both ways through the 4/0 cables linking it to the 2x2 series-parallel array of Trojan T105 golf cart batteries. The inverter brand name in my RV is Maxxum (sp?). Note that the low-DC side wire size needed for kilowatt-level AC loads is significant.</div><div><br></div><div>Do you actually need 10kW for your house in an emergency situation?</div><div><br></div><div>Andrew, KA2DDO</div><div>author of YAAC </div><div>long-term "dry" camper roughing it in comfort</div><br><br>-------- Original message --------<br>From: Rick Green <rtg@aapsc.com> <br>Date: 2/28/19 16:43 (GMT-05:00) <br>To: Robert Bruninga <bruninga@usna.edu> <br>Cc: aprssig@lists.tapr.org <br>Subject: Re: [aprssig] Tesla Field Day mode (or any EV/Hybrid) FD load <br><br>On Thu, 28 Feb 2019, Robert Bruninga wrote:<br><br>> At the FD site I powered with the Prius, each tent had a 12v battery for<br>> local power and then the battery was charged from the central power system<br>> with a 13.8V supply.<br>><br>> And since all of these 13.8V power supplies were modern DC switching<br>> supplies, that ran directly on the 220 VDC from the Prius just fine. At<br>> that voltage it only took under 3 amps to provide the entire FD average<br>> power and that could be run through hundreds and hundreds of feet of<br>> standard #18 zip cord with no notable voltage drop.<br>><br> .. Just so I understand, you were running 220VDC on 18ga zip cord indivudually <br>to the separate tents, where it was down-converted to 13.8VDC and buffered by a <br>local 12V battery to run the station? Each station also had its own 1Kw 120V <br>inverter for any equipment that couldn't run directly off the battery?<br><br> That sounds like a workable arrangement. The only thing that scares me is the <br>thought of 220VDC running 'hundreds of feet' in zip cord on the ground with kids <br>and tourists playing in the area. I'd be using something heavier like SJO <br>cable, and/or protecting it with flexible conduit of some sort.<br><br>But that doesn't answer my specific question. I would like to have a single <br>10Kw 240V split-phase inverter on hand for potential use as a household power <br>failure backup in addition to the annual FD deployment. Such availability is <br>mandatory in order to get the expenditure approved thru the budgeting process <br>;-)<br> Is such an inverter currently available on the market?<br><br>-- <br>Rick Green, N8BJX<br><br>We, the People of the United States of America, reject the U.S. Supreme Court's<br> Citizens United ruling, and move to amend our Constitution to firmly establish<br> that money is not speech, and that human beings, not corporations, are persons<br> entitled to constitutional rights.<br><br> http://www.MoveToAmend.org<br><br><br><br>_______________________________________________<br>aprssig mailing list<br>aprssig@lists.tapr.org<br>http://lists.tapr.org/mailman/listinfo/aprssig_lists.tapr.org<br></body></html>