[RE-wrenches] Split Phase Load Rating

[Jay]

Hi Mark

This was a big advantage of the older FX inverters was the use of the balancing transformer. The new FXR can’t use it. 

I can’t find but I had to call OB to get some info on how much you could out of balance a Radian inverter. It was like 60% ,could have been a bit higher but wasn’t 90-100% for sure. 

Schneider xw is 75%

I don’t know about magnum. 

And yea gotta try and figure out the load balance. 

Jay

Peltz Power. 








> On May 25, 2020, at 2:37 PM, Dave Angelini Offgrid Solar <offgridsolar at sti.net> 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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