[RE-wrenches] Split Phase Load Rating

[Mac Lewis]

Hmm: this is vague from the Radian Manual but it kind of seems like no
imbalance is tolerated (4 kVa/phase)
[image: image.png]
Schneider is more clear:
Looks like:
46A L to N with the 5548
48A L to N with the 6848

[image: image.png]


On Mon, May 25, 2020 at 4:19 PM Mark Frye <markf at berkeleysolar.com> wrote:

> OK, so with a Radian or XW what is the per-phase % of total rated power?
> 50%?
>
> On 5/25/2020 2:16 PM, Dave Angelini Offgrid Solar wrote:
> >  From what I have seen most folks get into trouble with split phase
> because
> > they are using too small of an inverter. For a home or larger I only use
> > the big radians or an XW's.
> >
> >   Some do have problems because they are refitting an old 120vac power
> > system to split phase and the load panel was never balanced at all.
> >
> > Dave Angelini Offgrid Solar
> > "we go where powerlines don't"
> > http://members.sti.net/offgridsolar/
> > e-mail offgridsolar at sti.net
> > text 209 813 0060
> >
> > On Mon, 25 May 2020 14:08:03 -0700, Mark Frye <markf at berkeleysolar.com>
> > wrote:
> >> Folks,
> >>
> >> Back again into the way back machine, I once installed a system with
> >> multiply FX's stacked in a split-phase configuration. At the advice of
> >> the engineer, I also installed an auto-transformer across the lines to
> >> help balance the per-phase loads.
> >>
> >> With the current split-phase inverters (Outback, Schneider, Magnum) what
> >> is the per-phase rating? Do any or all of them deliver 100% output
> >> rating to a single phase? If not, what is the max percentage output is
> >> allowed on a single phase? Do folks have to spend alot of time making
> >> sure there split-phase loads are balanced?
> >>
> >> Thanks,
> >>
> >> Mark
> >>
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-- 



Mac Lewis

*"Yo solo sé que no sé nada." -Sócrates*
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