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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">
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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>
</blockquote>
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