<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:12.0pt'>Stump the RE-Wrenches:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>You know the NPR radio show, Car Talk, when they play “Stump the Chumps”? I visited a manufacturing plant last week that has a 13.8 kV primary service that is stepped down to 600 VAC secondary by an indoor 1500 A transformer and distributed around the plant to the large pieces of equipment. There is a small transformer for 240/120 single-phase devices in the relatively small office area.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Do any of you know where I can find a UL-listed 3-phase inverter in the 300 kW range that can be interconnected to the 600 VAC buss? There is a spare 600 A breaker. Feel free to contact me off the list. Thank you.</span><span style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Paul Lyons, P.E.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Zapotec Energy Inc.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>675 Massachusetts Ave<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Cambridge, MA 02139-3309<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Tel: 617-547-5900 ext.201<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Email: <a href="mailto:Lyons@ZapotecEnergy.com"><span style='color:blue'>Lyons@ZapotecEnergy.com</span></a><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>