<div dir="ltr"><div>Try Quick Cable, seems that they have it if I remember correctly.</div>
<div> </div>
<div>Bob<br><br></div>
<div class="gmail_quote">On Fri, Aug 22, 2008 at 11:41 AM, <span dir="ltr"><<a href="mailto:holtek@sbcglobal.net">holtek@sbcglobal.net</a>></span> wrote:<br>
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<div><font face="Century Schoolbook">Anybody know a source for braided grounding wire? Internet search fruitless......</font></div>
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<div>Holt E. Kelly<br>Holtek Fireplace & Solar Products<br>500 Jewell Dr.<br>Waco,Tx. 76712<br>254-751-9111<br>254-228-9621 (cell)<br><a href="mailto:holtek@sbcglobal.net" target="_blank">holtek@sbcglobal.net</a><br>
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<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="BACKGROUND: #e4e4e4; FONT: 10pt arial"><b>From:</b> <a title="info@es-ee.com" href="mailto:info@es-ee.com" target="_blank">Kurt Albershardt</a> </div>
<div style="FONT: 10pt arial"><b>To:</b> <a title="re-wrenches@lists.re-wrenches.org" href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches</a> </div>
<div style="FONT: 10pt arial"><b>Sent:</b> Friday, August 22, 2008 12:57 AM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> Re: [RE-wrenches] motor starting issues (was: offgrid systemquestion)</div>
<div><br></div>--On Tuesday, August 19, 2008 7:57 AM -0700 Peter Parrish <<a href="mailto:peter.parrish@calsolareng.com" target="_blank">peter.parrish@calsolareng.com</a>> wrote:<br>><br>> Any motor will need both a voltage and current to operate properly, and they tend to draw more and more current as the source (inverter) voltage drops.<br>
<br><br>Back to basic physics:<br><br>Depending on design, electric motors can be constant power or constant torque (or some combination of two) devices.<br><br>Three phase AC motors are generally simpler in design and better behaved than either either single phase AC motors or DC motors. Permanent magnet synchronous 3Ø AC motors (available now) closely approach the theoretical limits of electromechanical motor systems in general.<br>
<br>Modern power electronics and control systems give us essentially perfect control of voltage, current, and frequency in AC systems.<br><br>Intelligently combining the above allows us to design efficient electromechanical systems which match nearly any complex supply impedance. These systems also happen to live longer, fail less often, and reduce both battery bank and inverter requirements.<br>
<br>The market (arguably free on so many levels, and obviously not on so many others) can address this using current technology. System sizing math not has changed fundamentally in several decades but we are getting closer to those fundamental limits.<br>
<br>Industrial systems are a bit ahead of the consumer market in some areas but behind in others. As one very basic example, Turbocor's maglev compressor has created a few waves in the commercial and light industrial sector but I fully expect some fascinating trickle-down benefits over next few years <<a href="http://www.turbocor.com/products_technology/" target="_blank">http://www.turbocor.com/products_technology/</a>><br>
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