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<p>Jay,</p>
<p>Do you use an NO or NC solid state relay?</p>
<p>Mark<br>
</p>
<div class="moz-cite-prefix">On 6/13/2020 7:46 AM, Jay wrote:<br>
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cite="mid:203181AA-1A23-4EA8-8344-88A83DF23B91@gmail.com">
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<div dir="ltr">Hi Mark,</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Then the relay method is easy and reliable to use. </div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Relay trips at whatever battery voltage you don\u2019t
want to exceed. </div>
<div dir="ltr"><br>
</div>
<div dir="ltr">I use a solid state relay with a good heat sink,
only switching one leg. </div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Jay</div>
<div dir="ltr"><br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr"><br>
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<div dir="ltr"><br>
<blockquote type="cite">On Jun 13, 2020, at 7:05 AM, Mark Frye
<a class="moz-txt-link-rfc2396E" href="mailto:markf@berkeleysolar.com"><markf@berkeleysolar.com></a> wrote:<br>
<br>
</blockquote>
</div>
<blockquote type="cite">
<div dir="ltr">\ufeff
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charset=UTF-8">
<p>On.<br>
</p>
<div class="moz-cite-prefix">On 6/12/2020 7:27 PM, Jay wrote:<br>
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cite="mid:138E5AC9-D31D-49D4-BBAF-C5C12BA3631E@gmail.com">
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charset=UTF-8">
<div dir="ltr">Hi Mark</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Is this off grid or on?</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Jay</div>
<div dir="ltr"><br>
<blockquote type="cite">On Jun 12, 2020, at 7:09 PM, Mark
Frye <a class="moz-txt-link-rfc2396E"
href="mailto:markf@berkeleysolar.com"
moz-do-not-send="true"><markf@berkeleysolar.com></a>
wrote:<br>
<br>
</blockquote>
</div>
<blockquote type="cite">
<div dir="ltr">\ufeff
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charset=UTF-8">
<p>I see. <br>
</p>
<p>What you say about the frequency shift being slow
makes me again doubt the value of even using it in my
application.<br>
</p>
<p>I have a controller that can regulate the AC dump
load. That same controller has a high limit switch
which I could use to cut the AC feed to the GT
inverters. But then both functions are in the same
device. On the other hand, it is a very reliable
device so....perhaps sufficient.<br>
</p>
<div class="moz-cite-prefix">On 6/12/2020 6:37 PM,
Bradley Bassett wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAEpjgH0WkaMVf_Q3cujuqmZ3K3Z7Q7o5uiwsQAWHggkeQV_ONA@mail.gmail.com">
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charset=UTF-8">
<div dir="ltr">
<div>I have a relay on the XW+ Aux and also
frequency shift which is usually slower, so the
relay usually cuts out first. I also have a DC
coupled array feeding the system. <br>
</div>
<div><br>
</div>
<div>Brad<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Jun 12,
2020 at 4:34 PM Mark Frye <<a
href="mailto:markf@berkeleysolar.com"
moz-do-not-send="true">markf@berkeleysolar.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px
0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div>
<p>Yes an elite group within an elite group.</p>
<p>So the SB240 does not have frequency shift
/wattage control. How are you implementing
charge control in stand alone mode?<br>
</p>
<div>On 6/12/2020 4:28 PM, Bradley Bassett
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Wow! Someone else with SMA SB240's, I
have 12 of them that I've AC coupled to an
XW+5548. They are very solid performers. <br>
</div>
<div><br>
</div>
<div>Brad</div>
<div>AEE Solar<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri,
Jun 12, 2020 at 3:39 PM Mark Frye <<a
href="mailto:markf@berkeleysolar.com"
target="_blank" moz-do-not-send="true">markf@berkeleysolar.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Hello,<br>
<br>
I have a small array of 8 - SMA SB240
microinverters on the roof. Peak <br>
power out of the array has never exceeded
1800 W.<br>
<br>
I am adding a Magnum MS-PAE 4448 with a
315 AH flooded Lead Calcium <br>
battery bank.<br>
<br>
Cheers<br>
<br>
On 6/12/2020 12:31 PM, Chris Schaefer
wrote:<br>
> G'Day Mark,<br>
><br>
> Which grid tied inverter are you
attempting to AC couple with. I <br>
> apologize if you already called it
out in the thread.<br>
><br>
> Christopher<br>
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