<div dir="ltr">The Generac SMM senses the generator, probably won't work for solar. <div>It's easy to do a contactor with time delay relay, those devices are available off the shelf. </div><div>As long as power goes off then back on, the time delay unit will back off for the set time. </div><div>You can probably find a device that is an integrated delay start.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Sep 12, 2019 at 11:14 AM Mac Lewis <<a href="mailto:maclewis1@gmail.com">maclewis1@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Generac has a pretty cool device that really needs to get emulated in the solar industry called the smart management module. It's a standalone smart relay that can be programmed via dip switches to do just this, bring devices on line in stages and drop them if the generator is getting overloaded. I believe it works from frequency dip but Im not sure. The nice thing about it is that it does not require any signal wiring from generator or ATS to do this, its just monitoring line voltage. This is really designed for grid/generator application but it would be really helpful for applications like this. Maybe you could use a home automation system to do this? Sonnen used to do this via Z-wave (I think) but I don't know the details of this.<div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 11, 2019 at 8:11 PM Jay <<a href="mailto:jay.peltz@gmail.com" target="_blank">jay.peltz@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div dir="ltr"></div><div dir="ltr">You\u2019ve got to plan on them all starting at once anyway. You can\u2019t expect that it\u2019ll never happen. </div><div dir="ltr"><br></div><div dir="ltr">And really how do you prevent it. The refrigerators and AC\u2019s are on all the time waiting for the thermostat to activate. And it\u2019s not good to turn a working fridge on/off especially is the compressor is running. </div><div dir="ltr"><br></div><div dir="ltr">Bigger loads, bigger inverters, bigger dollars. </div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br>On Sep 11, 2019, at 4:24 PM, Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com" target="_blank">jason@floridasolardesigngroup.com</a>> wrote:<br><br></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">That is what I was thinking, but how will the contactor coils "know" when the ATS switches to inverter power. I'm thinking I need to use an AUX relay or a series of relays to produce the desired result. I don't think it will be necessary when going from solar to generator in this case, but maybe. I guess the question is how to activate the time delay any time the ATS switches over. That would be the easiest solution maybe.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I'm probably looking at a quad Conext XW+ system here. Even at over 100A @ 240V continuous rating I'm anticipating some startup issues with all those motors (I forgot to mention well and pressure pumps also!)</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Jason</div><div><div dir="ltr" class="gmail-m_-4807838022086050237gmail-m_4610755200229393926gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><table border="0" cellpadding="0" cellspacing="0" style="font-family:"helvetica neue",helvetica,arial,sans-serif"><tbody><tr><td rowspan="2"></td><td rowspan="2"><table border="0" cellpadding="0" cellspacing="0" style="border-left:1px solid rgb(237,237,237);color:rgb(85,85,85);font-size:13px;padding-left:10px"><tbody><tr><td colspan="1"><table border="0" cellpadding="0" cellspacing="0" style="padding-top:5px"><tbody><tr><td style="padding-right:5px"></td><td style="padding-right:5px"></td><td style="padding-right:5px"></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table><b><div style="text-align:center"><br></div></b></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 11, 2019 at 5:50 PM Michael Morningstar <<a href="mailto:mjmorningstar@gmail.com" target="_blank">mjmorningstar@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div></div><div>Put the loads on contractors, control the contractors with adjustable time delay relays. Stagger the timing.</div><div><br>On Sep 11, 2019, at 2:41 PM, Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com" target="_blank">jason@floridasolardesigngroup.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">In an off-grid situation I'm looking for a strategy to manage transfer from generator power to inverter power because I have a lot of high startup load appliances planned for a system. Think 8 mini-refrigerators, one sub-z large refrigerator, and an under-cabinet ice maker, not to mention air conditioning. I would like to start these loads in stages if they all call to start up immediately upon system startup or during ATS switch over. Any ideas?</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I guess while I'm on the subject I should ask about my eye-roll, keep-me-up-a-night, giving-me-heartburn problem with this ice maker. It's going to be outdoors in Florida and they expect it to make 25-50 pounds of ice per day. I am finding it really hard to estimate energy use for this appliance. Any ideas (other than the obvious "don't do it" answer)?</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Jason Szumlanski</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Florida Solar Design Group</div><div><div dir="ltr" class="gmail-m_-4807838022086050237gmail-m_4610755200229393926gmail-m_-2029828323836004043gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><table border="0" cellpadding="0" cellspacing="0" style="font-family:"helvetica neue",helvetica,arial,sans-serif"><tbody><tr><td rowspan="2"></td><td rowspan="2"><table border="0" cellpadding="0" cellspacing="0" style="border-left:1px solid rgb(237,237,237);color:rgb(85,85,85);font-size:13px;padding-left:10px"><tbody></tbody></table></td></tr></tbody></table><b><div style="text-align:center"><br></div></b></div></div></div></div></div></div></div></div></div></div>
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