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<div class="moz-cite-prefix">On 2/1/2013 7:42 AM, John Berdner
wrote:<br>
</div>
<blockquote
cite="mid:B448FC9E37458B469E77EA0BB954AD4702B681E2B2@mailbox01"
type="cite">
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<div>
<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">John:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If
doing an AC coupled system with SB/SI there a couple
things to consider.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><span
style="mso-list:Ignore">1)<span style="font:7.0pt
"Times New Roman""> </span></span></span><!--[endif]--><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">SI
is 120 Vac only and SB and grid are both 240. You can get
2 SI’s but that is pricey. SMA now makes an autoformer
(finally) but it is really big and pretty expensive (hey
Robin/Bob there is an opportunity here). Too bad they
don’t make a 240 Vac SI and no longer make the old 1800
which had a 120 Vac output.</span></p>
</div>
</div>
</blockquote>
<br>
<br>
Already doing that, John, as part off our SMA/SI/SB and battery
based integration package just starting to ship now.<br>
<br>
Thanks !!<br>
boB<br>
<br>
<br>
<blockquote
cite="mid:B448FC9E37458B469E77EA0BB954AD4702B681E2B2@mailbox01"
type="cite">
<div>
<div class="WordSection1">
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">A
couple of ways to wire this (ASCII Draw, >> indicate
power flow, <> indicates bidirectional):<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">PV
>> SB >> Protected Load Center <> Auto
former <> SI <> Xfer switch <>Grid.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
|
|<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
| >> Loads
|
<<< Generator<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Or
alternatively like this:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">PV
>> SB >> Protected Load Center <> Xfer
switch <>Auto former <> SI << Generator<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
| |<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
| >> Loads | <> Grid<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">A
couple of tradeoffs here:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">In
case 1 the downside is that the output of the SI is 120
Vac to the grid = imbalance. All your grid tied PV flows
through the auto-former with the associated losses. The
upside is that your protected loads are protected by the
SI which has a very fast (transparent) transfer. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">In
case 2 the downside is that the loads are not protected so
you will see an interruption when the xfer switch
transfers. With a manual xfer switch this interruption
could be a long time </span><span
style="font-size:11.0pt;font-family:Wingdings;color:#1F497D">J</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
The upside is the PV is connected directly to the grid @
240Vac normally with no autoformer losses<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If
the SI is already installed you probably are doing
something like this already.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">To
connect in a generator you have to understand the SI’s
grid input programming. The SI has only one physical grid
“input”. I say “input” because both side of an SI are
bi-directional and can be either and input or an output
depending on power flow. If you go with Case 1 The problem
is that you need to set the current limit high enough for
the SB so it can grid feed. If your SB is larger than
your generator you can overload the generator when in
backup mode. You also need to allow power flow out of the
grid input which you don’t want with a small generator.
It is also nice to have wider voltage and frequency limits
when operating with the generator. Fortunately there are
2 logical inputs for the single grid input and a digital
generator mode selector input (signal level) that is used
to switch between the two. Each of these logical inputs
can have different parameters, i.e. one for grid and one
for generator. You provide a feedback a signal to the
digital input mode selector to tell the SI which set of
parameters to use.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">There
are several ways to do the mode selection ranging from a
switch (light switch or toggle switch) near the SI to
select modes to an aux contact on a full auto xfer relay.
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">For
a low case bulletproof approach use a 3 phase manual xfer
switch and use the unused third power pole to do your
digital input mode switching. This is what I have at my
house. The grid feeds one side of the manual Xfer switch
and I have an SO cord on the other side to plug in to a
generator for charging during a prolonged outage. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Feel
free to contact me either online or offline if you have
questions. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Best
Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">John
Berdner<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">General
Manager, North America<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><img
alt="SmallBannerPictEngnew" id="_x0000_i1026"
src="cid:part1.06020708.09040208@midnitesolar.com"
width="468" height="113"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">SolarEdge
Technologies, Inc.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">3347
Gateway Boulevard, Fremont CA 94538 USA </span><b><i><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#C00000">(*Please
note of our new address.)</span></i></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><br>
T: 510.498.3200, X 747<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">M:
530.277.4894 <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On
Behalf Of </b>john<br>
<b>Sent:</b> Friday, February 01, 2013 4:12 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a><br>
<b>Subject:</b> Re: [RE-wrenches] wrenches] Husqvarna 5500
and VFX3524 Compatibility question<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">John,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">
Thanks for that bit of information. I have a customer
with a SB5000 and recently added a Sunny Island with 8
L16 batteries. This answers their question as to what
they will do in an extended outage with no sun. I
wanted to suggest a small backup generator but wasn't
sure how it would work. Now I can install the cord and
set the sunny island for a Honda 2000i, several of which
I keep on hand for emergency power for us and our
customers.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">John
Blittersdorf<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><i><span
style="font-family:"Calibri","sans-serif";color:black">NABCEP
Certified Solar PV Installer <sup>tm</sup></span></i><span
style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><b><span
style="font-family:"Calibri","sans-serif";color:black">Central
Vermont Solar & Wind LLC</span></b><span
style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Calibri","sans-serif";color:black">104
River Street</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Calibri","sans-serif";color:black">Rutland,
VT 05701</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Calibri","sans-serif";color:black"> </span><span
style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black">802-770-8625
Cell</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black">802-747-0577
Office</span><span style="color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black">802-773-0924
Fax<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-family:"Calibri","sans-serif";color:black">Mark
your calendar: SolarFest 2013, July 12, 13 & 14</span><span
style="font-family:"Calibri","sans-serif";color:black">
</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><a
moz-do-not-send="true"
href="http://www.solarfest.org/"><span
style="font-size:12.0pt">www.SolarFest.org</span></a></span><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><br>
<br>
<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">-----Original
Message-----<br>
From: John Berdner <<a moz-do-not-send="true"
href="mailto:John.Berdner@solaredge.com">John.Berdner@solaredge.com</a>><br>
To: Allan <<a moz-do-not-send="true"
href="mailto:Allan@positiveenergysolar.com">Allan@positiveenergysolar.com</a>>;
RE-wrenches <<a moz-do-not-send="true"
href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
Sent: Thu, Jan 31, 2013 8:20 pm<br>
Subject: Re: [RE-wrenches] Husqvarna 5500 and VFX3524
Compatibility question<o:p></o:p></span></p>
<div id="AOLMsgPart_3_7465b28e-1818-423a-8ed9-715fa4fc0643">
<div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Arial","sans-serif";color:black">SMA
Sunny Island also does this but also discharges
battery in parallel with the generator to create
a “virtual generator” that is larger than the
actual generator.</span><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Arial","sans-serif";color:black">Just
set the max generator current and it does the
rest.</span><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
</div>
<div>
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<div>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">From:</span></b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">
<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org?">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Allan Sindelar<br>
<b>Sent:</b> Thursday, January 31, 2013 2:14
PM<br>
<b>To:</b> William Miller<br>
<b>Cc:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Husqvarna
5500 and VFX3524 Compatibility question<o:p></o:p></span></p>
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<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> <o:p></o:p></span></p>
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<div style="margin-bottom:12.0pt">
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">William,<br>
Yes, that's my understanding. Outback
acknowledged this to me years ago.<br>
Allan<o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Allan
Sindelar</span></b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><br>
<a moz-do-not-send="true"
href="mailto:Allan@positiveenergysolar.com"><span
style="color:#000099">Allan@positiveenergysolar.com</span></a><br>
NABCEP Certified Photovoltaic Installer<br>
NABCEP Certified Technical Sales
Professional<br>
New Mexico EE98J Journeyman Electrician<br>
Founder and Chief Technology Officer<br>
<b>Positive Energy, Inc.</b><br>
3209 Richards Lane (note new address)<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
<a moz-do-not-send="true"
href="http://www.positiveenergysolar.com/"
target="_blank">www.positiveenergysolar.com</a>
<o:p></o:p></span></p>
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style="margin-top:5.0pt;margin-right:722.25pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> <o:p></o:p></span></p>
</div>
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<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> <o:p></o:p></span></p>
</div>
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<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">On
1/29/2013 9:28 PM, William Miller wrote:<o:p></o:p></span></p>
</div>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Allan:<br>
<br>
Could it be that the SW systems are protecting
the generator with Generator Support, and the
Outback inverters are not?<br>
<br>
William Miller<br>
<br>
<br>
<br>
At 07:18 PM 1/29/2013, you wrote:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">This
is going back several years...<br>
<br>
The Outback VFX series lacks the tight input
current regulation of the SW series, so the
max AC amps in is really just a suggestion. In
many cases (and especially with these small
generators) we want to set the max amps in as
high as possible to minimize charging time and
maximize C/rate. Yet a surge load can
momentarily exceed the max amps setting. <br>
<br>
I have observed that the Honda
inverter/generators have a quite sensitive AC
output breaker, that will sometimes trip if a
surge load (such as a refrigerator) comes on
during a charge cycle set close to the
generator's capacity. This incident was
specific to a Honda 3000i. In contrast,
Yamaha's EF3000iSE will lug when overloaded -
not good for the generator, but also not
likely to trip the output breaker.<br>
<br>
This is a different issue than was being
discussed, but fits your question.<br>
Allan<o:p></o:p></span></p>
</div>
</blockquote>
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