The output of a 120/240 volt auto transformer shares neutral with the input
when you use to couple a 120 volt device to a 120/240 volt split phase
system... there is no isolation because the neutrals are the same connection.
I've done AC coupling with auto transformer specifically between Outba
Our firm has installed many Sunny Island hybrid gen cycle charge systems. In my
experience they are hands down the most reliable inverter system out there for
this application. Many sites that have been working perfectly with 100% uptime
over several years. Most sites we visit once a year to che
Hello Wrenches,
Has anyone AC coupled an Enphase system to a 120 VAC inverter through
an autotransformer?
I'm wiring up a small Enphase system now to an Outback GVFX3524. I
had a concern about the derived neutral possibly causing a ground
reference problem for the Enphase. It seems that the
Just got this from Zilla. This might be just what you are looking for...
https://www.zillarac.com/Store/Product-Details/ProductID/25.aspx
On Tue, Sep 16, 2014 at 9:32 AM, Will White
wrote:
> We've used Ecofasten ECO-65 successfully on both SIP roofs and membrane
> roofs. They're expensive an
Yeah, CAN bus is used (was designed mainly) for automobiles and I bet EVs
had something to do with Lion battery BOS's being CAN.
We actually have a modbus (RS232) to CAN converter that could be used
for this
I think.
That kind of stuff isn't all that hard to do and you may find generic
devic
boB,
IMPORTANT: If you ever plan to make a Li-ion control I/O, do it with CAN bus.
The whole industry is there. Our GBS product has CAN bus on the CPU to control
a variety of chargers now. I hope inverter and CC manufacturers see this great
potential. It would be easy for my CPU to tell the Cl
Oh, OK then. I thought that somebody had noticed a voltage drop when
surging.
When people ask me if they can use LFP or other Lithium chemistry
batteries, I tell them yes because
when they buy a LFP battery system, (or one of their Lithium Ion
relatives) it has all the protection
and balan
Truth is there is likely more than enough capacity in the LFP battery the
customer has but the manufacturer built a limit into the “box". The limit of
our battery is set to 10C for 30 seconds. WAY more than any inverter can draw
with even a small bank.
Larry
On Sep 18, 2014, at 12:26 PM, b...@
Yes, well of course there are these details.
If the LFP surge is a limitation, but not its amount of overall
energy storage, then you may have to add a very large amount of LFP
storage to overcome that which
could be overkill and cost a lot of extra $.
It's all a compromise.
boB
On 9/18/2
boB,
When charging a LFP battery, the charge terminates when absorb voltage is
reached unless you have an enormous charger in which case you will need to
terminate based on AH returned. You would also need to isolate the LA battery
to finish charging it. Plus, LA needs higher voltages than LFP
Hi:
It is possible for a grid tie inverter connected to the output of a
battery based inverter to export energy through the battery based inverter
to the AC source. It doesn't matter is that source is the grid, a
generator, or any other AC power source.
Indeed, due to this common AC bus wirin
One thing that could possibly be done is to have a smaller lead acid
battery in parallel with the LiFePo bank
so the LiFePo contains most of the "energy" storage, but the LA can
supply the surges and low impedance
source voltage.
boB
On 9/18/2014 8:53 AM, Starlight Solar Power Systems wrot
William,
This is one reason I choose to avoid the "black box" approach to Li-ion
batteries for our customers. There are several companies offering enclosed
battery/controls like the OES. Their approach does not match well to the
off-grid and mobile markets that I serve.
Since most LFP batteri
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