Based on many successful installs, I'd say a 3/4 HP pump is not a
problem at all, and that the Magnum could easily run a 1-1/2 HP
submersible pump.
2 HP probably, but that's where you start worrying.
The Franklin Subpak controller can be used on regular AC pumps and not
only offers constant pre
Yes Drake, I stand corrected, I was picturing the micro inverters feeding the
input rather than coupling the output of the Magnum. To your original question,
I think you would have to be consuming more power than the PV array alone can
provide before the Magnum voltage would drop with the pump l
We use a protective relay, unless using Sunny
Islands. In this case, the relay will be
controlled by the programmable AUX relay's12 V
signal. Magnum does have a phase shifting
function, but does not recommend relying on it.
At 04:40 PM 7/3/2014, you wrote:
Wrenches
I have not seen either a
Wrenches
I have not seen either a OB, Trace or Magnum do a even far job of charge
control or voltage limiting for the batteries during AC coupling as this is
when the transformer is basicly going backwards, it can and does but even
outback says you need to do a AC discounting means or AC or DC load
Hi Larry,
In this case, the Enphase will AC couple with the Magnum in the
protected loads panel. The AC out of the Magnum provides the micro
grid to which the Enphase connects. If charging exceeds loads, when
the grid is down, power will go to the batteries (up to the high
battery voltage se
Hi Drake,
If the Enphase are online, up to 60 amps (30A @ 240V) can be transferred
through the Magnum inverter to loads. The inverter is not providing power to
loads at that time. If the Enphase go offline, the Magnum takes over using
power from the battery. If the load is greater than your Enp
This information helps greatly. I really appreciate all of your expert advice.
One other wild card in the installation is that
the inverter is going to be AC coupled with an
Enphase system. The Enphase system will
contribute greatly to the overall power available
in the protected loads panel.
RE Ellison" :
What has been everybody’s experience with Full River Batteries?
Bob
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Roy Butler
Sent: Wednesday, July 02, 2014 3:12 PM
To: re-wrenches@lists.re-wrenches.org
Subject: Re: [RE-wrenches] Magnum an
What has been everybody’s experience with Full River Batteries?
Bob
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Roy Butler
Sent: Wednesday, July 02, 2014 3:12 PM
To: re-wrenches@lists.re-wrenches.org
Subject: Re: [RE-wrenches] Magnum and Pumps
Sorry, typo - that's a 48V string (one string of 8 batteries).
Jason Szumlanski
Fafco Solar
On Wed, Jul 2, 2014 at 3:15 PM, Jason Szumlanski
wrote:
> Even at 9600W, which is above the 5 second surge rating of the inverter,
> we're looking at about 200A on the DC side, which would be a 1-h
Even at 9600W, which is above the 5 second surge rating of the inverter,
we're looking at about 200A on the DC side, which would be a 1-hr rate on
an L-16 string. While that is high, it should not be an issue. Even at the
1ms surge of 16,800W, a 48 string of L16's should be able to handle that.
Sweetthanks for that info, I stand
corrected!
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 www.f
Hi Roy,
The FullRiver DC400-6 AGM battery can issue 2000 amps for 5 seconds so he
should be fine.
Larry
On Jul 2, 2014, at 12:35 PM, Roy Butler wrote:
I haven't seen anyone mention the battery bank. If I understand correctly,
there's a single string of sealed
L16 batteries on this inverter.
I haven't seen anyone mention the
battery bank. If I understand correctly, there's a single string
of sealed
L16 batteries on this inverter. I have my doubts as to whether or
not that bank can provide the high current
the inverter needs to start this load.
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
limitati
Hi Drake,
To answer question "does this seem like a good combination" I would reply no.
Keep in mind well pumps often kick in concurrently with other large loads,
washing machines, dishwashers, etc.
I'm sure the MS 4448 PAE will start the pump ok, but forewarn customer of
brownouts when
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.
I'm goi
If you have a clamp on meter that can capture inrush current (I use a Fluke 337
for this) you can get a good idea of the starting current needed.
One problem is that while backing up the house, you will likely have other
loads operating when the pump starts which will decrease the available surg
Drake,
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 condensi
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