<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>Hi Jay -</div><div>Usually 408 delta will have 3 legs. See <a href="https://en.wikipedia.org/wiki/Three-phase_electric_power">https://en.wikipedia.org/wiki/Three-phase_electric_power</a></div><div>Unlike Wye, the neutral is center tapped from the winding between two of the legs.</div><div>The third is a hi leg or "stinger" leg that is 1.5 times the others voltage to neutral.</div><div>Sounds like what you have is two of three legs with a center tapped neutral; the the hi leg is probably around somewhere on site. </div><div>If you can find it then a 3-phase inverter will work. </div><div>Otherwise, as mentioned you will need a transformer to get 240 across the legs you have. </div><div>But 10kW of solar will unbalance the phases. Best to find that third leg and use a 3-phase inverter. </div><div>I have used the Fronius IG Plus 11.4 for this with good results. </div><div>Don Barch</div><div>Energy Solar<br></div><blockquote id="replyBlockquote" webmail="1" style="border-left: 2px solid blue; margin-left: 8px; padding-left: 8px; font-size:10pt; color:black; font-family:verdana;"><div id="wmQuoteWrapper">
Date: Fri, 29 Apr 2016 08:03:26 -0700<br>
From: jay <<a href="mailto:jay.peltz@gmail.com">jay.peltz@gmail.com</a>><br>
To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
Subject: Re: [RE-wrenches] 480 single phase delta<br>
Message-ID: <<a href="mailto:B75C4E4A-5EB4-49D0-A7D4-9BDEE1E403AE@gmail.com">B75C4E4A-5EB4-49D0-A7D4-9BDEE1E403AE@gmail.com</a>><br>
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<br>
HI Jerry and all,<br>
<br>
I?m sorry if I confused the issue. <br>
I haven?t seen this, I?m doing the research for a friend. <br>
It has been measured at numbers provided. 480 line to line, 240v line to neutral, 2 hots wires, not 3.<br>
<br>
The client has been told by 3 different installers that its impossible system to do. <br>
And as the experts here have provided, thats just not true.<br>
<br>
Thanks for the input. <br>
<br>
jay<br>
<br>
<br>
> On Apr 28, 2016, at 6:58 PM, Jerry Shafer <<a href="mailto:jerrysgarage01@gmail.com">jerrysgarage01@gmail.com</a>> wrote:<br>
> <br>
> I cant say l have seen a single phase delta, open delta, use two of the three legs but not on pumps, can someone explain, what am l missing as the term delta is three points<br>
> Jerry<br>
> <br>
> On Apr 28, 2016 3:50 PM, "Jay" <<a href="mailto:jay.peltz@gmail.com">jay.peltz@gmail.com</a> ><<a href="mailto:jay.peltz@gmail.com">mailto:jay.peltz@gmail.com</a>>> wrote:<br>
> Great inverter but this is single phase. <br>
> Jay<br>
> <br>
> Sent from my iPhone<br>
> <br>
> On Apr 28, 2016, at 3:10 PM, jerrysgarage01 <<a href="mailto:jerrysgarage01@gmail.com">jerrysgarage01@gmail.com</a> ><<a href="mailto:jerrysgarage01@gmail.com">mailto:jerrysgarage01@gmail.com</a>>> wrote:<br>
> <br>
>> What about an SMA Tri Power inverter<br>
>> Jerry<br>
>> <br>
>> <br>
>> Sent via the Samsung Galaxy S? III, an AT&T 4G LTE smartphone<br>
>> <br>
>> <br>
>> -------- Original message --------<br>
>> From: Chris Mason<br>
>> Date:04/28/2016 8:52 AM (GMT-10:00)<br>
>> To: RE-wrenches<br>
>> Subject: Re: [RE-wrenches] 480 single phase delta<br>
>> <br>
>> You will use a 240:480v step up transformer<br>
>> <br>
>> On Apr 28, 2016 14:17, "jay" <<a href="mailto:jay.peltz@gmail.com">jay.peltz@gmail.com</a> ><<a href="mailto:jay.peltz@gmail.com">mailto:jay.peltz@gmail.com</a>>> wrote:<br>
>> HI All,<br>
>> <br>
>> I have a question from a person wanting to do a intertie on a commercial water pumping site with<br>
>> <br>
>> 480v single phase delta configuration.<br>
>> <br>
>> PV will be in the 10kw range.<br>
>> <br>
>> Anybody have an idea of what equipment will work for this?<br>
>> <br>
>> <br>
>> <br>
>> thanks<br>
>> <br>
>> jay<br>
>> <br>
>> peltz power<br>
<br>
</div>
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