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<p>Larry. <br>
</p>
<p><br>
</p>
<p>Hera's an idea. Put a 1:1 isolation transformer of suitable power
rating between the inverter and load. The iron core will act as a
energy storage element allowing for a cleaner ac waveform during
start.</p>
<p><br>
</p>
<p>Frank BZP</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 1/13/2023 12:54 PM, Starlight via
RE-wrenches wrote:<br>
</div>
<blockquote type="cite"
cite="mid:061D0B0B-0833-41A5-80BA-16C9191DF687@starlightsolar.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
Any new AC equipment connected and running during test? Scope the
waveform during equipment start to see if the distortion is
severe. I have seen a 300W load make a mess of a Magnum AC
waveform.<br class="">
<div class="">
<div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);
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widows: auto; word-spacing: 0px; -webkit-text-size-adjust:
auto; -webkit-text-stroke-width: 0px; text-decoration: none;"><br
class="Apple-interchange-newline">
</div>
<div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);
font-family: Helvetica; font-size: 14px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; orphans: auto; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: auto; word-spacing: 0px; -webkit-text-size-adjust:
auto; -webkit-text-stroke-width: 0px; text-decoration: none;">Larry
Crutcher</div>
<div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);
font-family: Helvetica; font-size: 14px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; orphans: auto; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: auto; word-spacing: 0px; -webkit-text-size-adjust:
auto; -webkit-text-stroke-width: 0px; text-decoration: none;">Starlight
Solar Power Systems</div>
<div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);
font-family: Helvetica; font-size: 14px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; orphans: auto; text-align: start;
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widows: auto; word-spacing: 0px; -webkit-text-size-adjust:
auto; -webkit-text-stroke-width: 0px; text-decoration: none;"><br
class="">
</div>
<br class="Apple-interchange-newline">
</div>
<div><br class="">
<div class="">On Jan 13, 2023, at 11:48 AM, Mac Lewis <<a
href="mailto:maclewis1@gmail.com"
class="moz-txt-link-freetext" moz-do-not-send="true">maclewis1@gmail.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div dir="auto" class="">Good question Larry,
<div dir="auto" class=""><br class="">
</div>
<div dir="auto" class="">Rock solid 52V on a lithium battery
system. Doesn't appear to be a battery problem at all. </div>
</div>
<br class="">
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Jan 13, 2023,
11:41 AM Starlight <<a
href="mailto:larry@starlightsolar.com"
class="moz-txt-link-freetext" moz-do-not-send="true">larry@starlightsolar.com</a>>
wrote:<br class="">
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div
style="word-wrap:break-word;line-break:after-white-space"
class="">Mac,
<div class=""><br class="">
</div>
<div class="">What was the lowest voltage measured at
inverter battery terminals during the inrush
measurement?<br class="">
<div class="">
<div style="font-family: Helvetica; font-size: 14px;
font-style: normal; font-variant-caps: normal;
font-weight: normal; letter-spacing: normal;
text-align: start; text-indent: 0px;
text-transform: none; white-space: normal;
word-spacing: 0px; text-decoration: none;"
class=""><br class="">
</div>
<div style="font-family: Helvetica; font-size: 14px;
font-style: normal; font-variant-caps: normal;
font-weight: normal; letter-spacing: normal;
text-align: start; text-indent: 0px;
text-transform: none; white-space: normal;
word-spacing: 0px; text-decoration: none;"
class="">Larry Crutcher</div>
<div style="font-family: Helvetica; font-size: 14px;
font-style: normal; font-variant-caps: normal;
font-weight: normal; letter-spacing: normal;
text-align: start; text-indent: 0px;
text-transform: none; white-space: normal;
word-spacing: 0px; text-decoration: none;"
class="">Starlight Solar Power Systems</div>
<div style="font-family: Helvetica; font-size: 14px;
font-style: normal; font-variant-caps: normal;
font-weight: normal; letter-spacing: normal;
text-align: start; text-indent: 0px;
text-transform: none; white-space: normal;
word-spacing: 0px; text-decoration: none;"
class=""><br class="">
</div>
<br class="">
</div>
<div class=""><br class="">
<div class="">On Jan 13, 2023, at 11:33 AM, Mac
Lewis via RE-wrenches <<a
href="mailto:re-wrenches@lists.re-wrenches.org"
target="_blank" rel="noreferrer"
class="moz-txt-link-freetext"
moz-do-not-send="true">re-wrenches@lists.re-wrenches.org</a>>
wrote:</div>
<br class="">
<div class="">
<div dir="ltr" class="">Hello Wrenches,
<div class=""><br class="">
</div>
<div class="">I have a new client that has ran a
pretty decent wood shop for about 10 years on
a Magnum 4448. He's got some large loads,
planers, saws, compressors vacuums etc. They
are really nice, heavy duty pieces of
equipment. Amazingly, the Magnum has been
able to start these loads for the most part
for 10 years, but he has reported that it has
gotten worse lately (could be a load issue),
brown outs, dimming etc</div>
<div class=""><br class="">
</div>
<div class="">He wants to upgrade the system,
get remote monitoring etc. I tried a test
with a Sol-Ark 12, and it won't start these
large motor loads. I was a little surprised
by that but I know they aren't as good as the
low freq transformer based inverters at these
surges.</div>
<div class=""><br class="">
</div>
<div class="">I confirmed that its not just an
overload from imbalance because the 240V loads
will also overload it. I got an inrush
measurement of 48.5A Ac @240 (but it didn't
start the load before Sol-Ark would shut
off) </div>
<div class=""><br class="">
</div>
<div class="">What are my options?</div>
<div class="">Schneider XW Pro 6848</div>
<div class="">Outback Radian 8048 (Is this a low
freq device?)</div>
<div class="">Sunny Islands are beasts but weird
to work with and not user friendly</div>
<div class=""><br class="">
</div>
<div class="">Any others I should consider? He
does have some significant 120 only loads so I
don't think the Outback vfxr are a good
choice.</div>
<div class=""><br class="">
</div>
<div class="">Is it as simple as saying if the
Magnum can start this load, the Radian should?</div>
<div class=""><br class="">
</div>
<div class="">I appreciate your input!</div>
<div class=""><br class="">
</div>
<div class="">--<br class="">
<div dir="ltr"
data-smartmail="gmail_signature" class="">Mac
Lewis<br class="">
<br class="">
<span style="font-family:"Times New
Roman";font-size:inherit;color:rgb(255,153,0)"
class=""><b class=""><font class=""
size="3" face="Arial, Helvetica,
sans-serif">
<p class="" align="left"><br class="">
</p>
</font></b></span></div>
</div>
</div>
_______________________________________________<br
class="">
</div>
</div>
</div>
</div>
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