<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">What is the battery voltage when the client says that SOC is %75?<div class=""><br class=""></div><div class="">VFD driven pumps are three phase. There are single phase “soft start” controllers for pumps and motors designed for that application, but not for a two wire fed submersible pump. The pump, for mechanical reasons, not just electrical, may may be resisting start up. </div><div class=""><br class=""></div><div class="">Michael</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Dec 10, 2016, at 9:11 AM, Dan Fink <<a href="mailto:danbob88@gmail.com" class="">danbob88@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi Bob; I checked the connections for corrosion, and the wire size looks like "the usual" for up here in this area, it's only about 100 feet and the usual well depth around here is 350 ft. Running stouter wire might be an option to consider...but that's a lot of digging. I'm just hoping VSD might be a quick and dirty solution.</div><div class="gmail_extra"><br clear="all" class=""><div class=""><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><span style="font-size:12.8000001907349px" class="">Dan Fink</span><div style="font-size:12.8000001907349px" class="">Adjunct Professor of Solar Energy Technology, Scotch Institute be</div><div style="font-size:12.8000001907349px" class="">IREC Certified Instructor™ for: </div><div style="font-size:12.8000001907349px" class="">~ PV Installation Professional</div><div style="font-size:12.8000001907349px" class="">~ Small Wind Installer</div><div style="font-size:12.8000001907349px" class="">Executive Director, Buckville Energy</div><div style="font-size:12.8000001907349px" class="">NABCEP Registered Continuing Education Providers™<br class=""><a href="tel:970.672.4342" value="+19706724342" style="color:rgb(17,85,204)" target="_blank" class="">970.672.4342</a></div><br class=""> </div></div></div></div></div></div></div></div></div></div>
<br class=""><div class="gmail_quote">On Sat, Dec 10, 2016 at 9:53 AM, RE Ellison <span dir="ltr" class=""><<a href="mailto:reellison@gmail.com" target="_blank" class="">reellison@gmail.com</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto" class=""><div class=""></div><div class="">Don't know about the variable speed but are the wires feeding the pump large enough for the distance?</div><div class="">Sounds like it might be voltage starved because of a high resistance / bad connection or a long wire run and the need for a larger wire ?</div><div class=""><br class=""></div><div class="">Just a thought,</div><div class="">Bob Ellison</div><div class=""><div class="h5"><div class=""><br class="">On Dec 10, 2016, at 11:39 AM, Dan Fink <<a href="mailto:danbob88@gmail.com" target="_blank" class="">danbob88@gmail.com</a>> wrote:<br class=""><br class=""></div><blockquote type="cite" class=""><div class=""><div dir="ltr" class="">Esteemed Wrenches;<div class=""><br class=""><div class="">I have a client in a very remote mountain location who is having trouble with his inverter starting his well pump when battery state of charge is below 75%. 24v system, Magnum inverter. </div><div class=""><br class=""></div><div class="">It's a 2-wire pump, unknown age, model, horsepower, or well depth. It has always given him trouble, that's why he upgraded to 24v, and the situation is better, but not ideal yet. I don't think adding a hard start capacitor would help as there should be one inside the pump itself, though I suppose it could be blown.</div><div class=""><br class=""></div><div class="">Because of the distance and the rough road, it would be super expensive for a well company to come up there, pull the old pump and set a new, modern soft-start one.</div><div class=""><br class=""></div><div class="">Has anyone here had any experience with retrofitting variable speed drive units to an unknown pump? If so, what models have you tried and what do you prefer?</div><div class=""><br class=""></div><div class="">Thanks; </div><div class=""><br clear="all" class=""><div class=""><div class="m_-8730233548164673502gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><span style="font-size:12.8000001907349px" class="">Dan Fink</span><div style="font-size:12.8000001907349px" class="">Adjunct Professor of Solar Energy Technology, Ecotech Institute</div><div style="font-size:12.8000001907349px" class="">IREC Certified Instructor™ for: </div><div style="font-size:12.8000001907349px" class="">~ PV Installation Professional</div><div style="font-size:12.8000001907349px" class="">~ Small Wind Installer</div><div style="font-size:12.8000001907349px" class="">Executive Director, Buckville Energy</div><div style="font-size:12.8000001907349px" class="">NABCEP Registered Continuing Education Providers™<br class=""><a href="tel:970.672.4342" value="+19706724342" style="color:rgb(17,85,204)" target="_blank" class="">970.672.4342</a></div><br class=""> </div></div></div></div></div></div></div></div></div></div>
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