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<div class="moz-cite-prefix">Sweet....thanks for that info, I stand
corrected!<br>
<pre class="moz-signature" cols="72">Roy Butler
NABCEP Certified Solar PV Installer®
NYSERDA eligible PV & wind installer
IREC Certified Master Trainer™ for Small Wind Installer
Four Winds Renewable Energy, LLC
8902 Route 46, Arkport, NY 14807
607-324-9747 <a class="moz-txt-link-abbreviated" href="http://www.four-winds-energy.com">www.four-winds-energy.com</a>
Join us at the 10th Annual Small Wind Conference
A Gathering of Installers, Manufacturers, Dealers, & Distributors
June 17 and 18, 2014 in Stevens Point, Wisconsin
<a class="moz-txt-link-abbreviated" href="http://www.smallwindconference.com">www.smallwindconference.com</a>
Although no trees were killed in the sending of this message,
a large number of electrons were terribly inconvenienced.
</pre>
On 7/2/2014 2:55 PM, Larry Crutcher, Starlight Solar Power Systems
wrote:<br>
</div>
<blockquote
cite="mid:BDCA2206-AD4C-4BC1-82D2-C1512E880D53@starlightsolar.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
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charset=ISO-8859-1">
Hi Roy,
<div><br>
</div>
<div>The FullRiver DC400-6 AGM battery can issue 2000 amps for 5
seconds so he should be fine.</div>
<div><br>
</div>
<div>Larry<br>
<br>
<div>
<div>On Jul 2, 2014, at 12:35 PM, Roy Butler <<a
moz-do-not-send="true"
href="mailto:roy@four-winds-energy.com">roy@four-winds-energy.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div>
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http-equiv="Content-Type">
<div bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">I haven't seen anyone mention
the battery bank. If I understand correctly, there's a
single string of sealed<br>
L16 batteries on this inverter. I have my doubts as to
whether or not that bank can provide the high current<br>
the inverter needs to start this load.<br>
<pre class="moz-signature" cols="72">Roy Butler
NABCEP Certified Solar PV Installer®
NYSERDA eligible PV & wind installer
IREC Certified Master Trainer™ for Small Wind Installer
Four Winds Renewable Energy, LLC
8902 Route 46, Arkport, NY 14807
607-324-9747 <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="http://www.four-winds-energy.com/">www.four-winds-energy.com</a>
Join us at the 10th Annual Small Wind Conference
A Gathering of Installers, Manufacturers, Dealers, & Distributors
June 17 and 18, 2014 in Stevens Point, Wisconsin
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="http://www.smallwindconference.com/">www.smallwindconference.com</a>
Although no trees were killed in the sending of this message,
a large number of electrons were terribly inconvenienced.
</pre>
On 7/2/2014 2:10 PM, Jason Szumlanski wrote:<br>
</div>
<blockquote
cite="mid:CAJJtG3qM=DzOUqkGVdnwnAd2_eicBGNDuyZ=_qmdTt1dSbze8g@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_default"
style="font-family:verdana,sans-serif">To further
qualify my statements, the inverter will start the
pump without issue, but I should echo the warnings
by others that if there are other loads present,
especially other motor loads that could start
concurrently, you may experience issues. As long as
your customer understands the limitations and
possibilities, you may be just fine.</div>
<br>
<br>
<div id="WISESTAMP_SIG_gmail_session"
href="http://WISESTAMP_SIG_gmail_session">
<div
style="font-size:13px;font-family:Verdana,Arial,Helvetica,sans-serif">
<div style="margin:0 0 8px 0">
<div style="margin: 0px;"><span>Jason Szumlanski</span></div>
<p style="margin:0"><span><span></span></span></p>
<div class="gmail_default"
style="font-family:verdana,sans-serif;display:inline">
Fafco Solar</div>
<br>
</div>
</div>
<img moz-do-not-send="true"
src="http://ws-stats.appspot.com/ga/pixel.png?yes__count=true%20&e=legacy_impression"></div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Wed, Jul 2, 2014 at
11:00 AM, Jason Szumlanski <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:jason@fafcosolar.com"
target="_blank">jason@fafcosolar.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0
0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div dir="ltr">
<div style="font-family:verdana,sans-serif">For
what it's worth, I've run a single speed
1.5HP pool pump with a MS4448PAE in a mobile
application on a 38.4kWh battery bank
(sixteen Rolls S-530's). I have also run a
2.5HP Hayward EcoStar Variable Speed pool
pump at full RPM, but that startup current
is likely less than you well pump.</div>
<div style="font-family:verdana,sans-serif"><br>
</div>
<div style="font-family:verdana,sans-serif">I'm
going to guess your 3/4HP well pump will be
a breeze to start with this inverter.</div>
<br>
<br>
<div href="http://WISESTAMP_SIG_gmail_session">
<div
style="font-size:13px;font-family:Verdana,Arial,Helvetica,sans-serif">
<div style="margin:0 0 8px 0">
<div style="margin: 0px;"><span>Jason
Szumlanski </span></div>
<p style="margin:0"><span><span></span></span></p>
<div
style="font-family:verdana,sans-serif;display:inline">
Fafco Solar</div>
<br>
</div>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote"> On Wed, Jul 2, 2014
at 10:47 AM, Allan Sindelar <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:allan@sindelarsolar.com"
target="_blank">allan@sindelarsolar.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
<div style="background-color: rgb(255,
255, 255);" bgcolor="#FFFFFF"
text="#000000">
<div>Drake,<br>
As a normal CYA, I'll always gently
let a customer know that this (or any)
particular combination of inverter and
load sometimes proves incompatible,
just in case the unexpected happens.
(We once had a MS4448 that would not
reliably start and run a condensing
boiler; a switch to a different boiler
resolved the issue.)<br>
<br>
Having said that note of caution, I
wouldn't give it any concern. 3/4 HP
and 1 HP well pumps have never been an
issue; I would expect 1.5 HP to be
easy to run. At 2 HP I'd be asking
these questions here. <br>
<br>
You might check that it's a 3-wire,
capacitor-start motor, but nowadays
nearly all are. Two-wire pumps (with
no control box) can add 50% to the
surge.<br>
<br>
The Magnum has a fairly poor voltage
regulation response. Sometimes the AC
voltage can drop to ~80 VAC
momentarily. So you might also caution
your customer that the lights may
flicker when the pump starts. In our
home we know whenever our Kenmore
fridge turns on.<br>
<br>
Allan<br>
<br>
<div>
<div>
<p class="MsoNormal"><b>Allan
Sindelar</b><br>
<span style="font-size:10.0pt"><a
moz-do-not-send="true"
href="mailto:allan@sindelarsolar.com"
target="_blank">allan@sindelarsolar.com</a></span><br>
<span style="font-size:10.0pt">NABCEP
Certified PV Installation
Professional<br>
NABCEP Certified Technical
Sales Professional<br>
New Mexico EE98J Journeyman
Electrician<br>
Founder (Retired), <span>Positive
Energy, Inc.</span><br>
<b><a moz-do-not-send="true"
href="tel:505%20780-2738"
value="+15057802738"
target="_blank">505
780-2738</a> cell</b><br>
<br>
</span></p>
<div> <br
class="webkit-block-placeholder">
</div>
</div>
</div>
<div>
<div> On 7/2/2014 8:17 AM, Drake
wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div> Hello Wrenches,<br>
<br>
We are hoping to use a Magnum PAE
4448 to back up a household that
includes a 3/4 HP deep well pump.
There is about 120 feet of
vertical rise and about 1000 feet
of horizontal distance. <br>
<br>
I have been told that there is a
correlation between the locked
rotor current of a pump and the
predictable ability of a specified
inverter to power that pump. <br>
<br>
The plumber who installed the pump
left no paperwork and retained no
records of what pump he put in the
hole last year. He could only say
it was a 3/4 HP pump. We are
therefore unable to obtain the
manufacturer's nameplate
specifications.<br>
<br>
The Magnum PAE 4448 has a 1 mS
surge of 70 A (at 240 V) and a 100
MS surge of 40 A. According to the
NEC Table 430.251(A), a 3/4 HP
motor has a locked rotor current
of 41.4 amps at 230 V. <br>
<br>
This inverter can surge at 35.4 A
for 5 seconds. The specified
battery bank will be 8 Full River
L-16 AGMs. Can anyone say if:
<ul>
<li>Is there enough information
to know if this setup will
handle the pump, and if so,
will it? </li>
<li>How can an inverter's
ability to power a motor or
pump be calculated by knowing
its locked rotor current?
Which surge periods should be
compared to the locked rotor
current? </li>
<li>Does the surge current need
to equal locked rotor. How
long must the inverter meet
its required maximum surge? </li>
<li>From experience with Magnums
and pumps, does this seem like
a good combination? </li>
</ul>
<br>
Thank you,<br>
<br>
Drake <br>
<br>
Drake Chamberlin<br>
<i>Athens Electric LLC<br>
OH License 44810<br>
CO License 3773<br>
NABCEP Certified Solar PV <br>
<a moz-do-not-send="true"
href="tel:740-448-7328"
value="+17404487328"
target="_blank">740-448-7328</a><br>
</i><a moz-do-not-send="true"
href="http://athens-electric.com/"
target="_blank">http://athens-electric.com/</a> </div>
</div>
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