[RE-wrenches] 3 phase off-grid UL listed

Thu Sep 8 11:29:38 PDT 2022

This is a new product from Schneider to solve a few of the issues. A 
recent webinar had the 3 phase issue brought up and this 200A pre wired 
panel. The 3 phase webinar is next, I heard.....

https://solar.se.com/us/en/?s=865-BCS-2200

Whole home backup or subpanel backup with up to 200
A rating
* Service entrance rated when installed with a main breaker
* Top or bottom entry for grid input
* Optional non-backup circuit, making it easy to backup an
existing panel and remove select non-critical loads
* Fast 50 ms transfer from grid connected to backup power
operation
* Reliable backup power and load starting performance
with the compatible XW Pro inverters
* Connect up to 4 XW Pro inverters for up to 27 kW
continuous and 48 kW peak backup power capability

Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridsolar at sti.net

On 2022-09-08 9:21 am, Eric Smiley via RE-wrenches wrote:

> I've worked with a few larger 3-phase Conext XW systems - 3 inverters 
> and 6 inverters.
> The inverters' output capabilities are slightly reduced since they have 
> to be converted to 120 V, effectively doubling the output current. 
> Also,they required an external transfer switch. Even with 3 inverters 
> configured for 3-phase, I would recommend an external transfer. The 
> relays have a habit of welding.
> Once they were configured properly, there was no problem starting large 
> HVAC loads and even large single phase loads were OK.
> 
> Eric Smiley, Project Manager
> eric at vecoop.ca
> T: 250.703.6004 [1]
> T: 888.386.0116 [2]
> VIRIDIANENERGY.CA [3]
> 
> [3]
> 
> On Thu, 8 Sept 2022 at 08:49, Vince McClellan via RE-wrenches 
> <re-wrenches at lists.re-wrenches.org> wrote:
> 
> That's a market segment that no inverter company that I know of really 
> makes a product for.
> I would probably use 3 Sol-Ark 12K inverters.
> You'll have to be careful with load balancing with any Sol-Ark inverter 
> though.
> Schneider would also work but you will have a lot of individual 
> components and you would need to be careful that the internal transfer 
> switch is within its 60 amp capacity limit from a generator or other 
> source. With multiple Schneider inverters there is the possibility that 
> not all of the internal transfer switches will  trip at exactly the 
> same time causing the transfer switch in one inverter to take the whole 
> load.
> I was originally a staunch Outback fan but we've stopped using their 
> products after we had repeated Incidents of equipment not working right 
> out of the box.
> 
> Vince McClellan
> Energy Design
> 
> On Sep 8, 2022, at 07:30, Jerry Shafer via RE-wrenches 
> <re-wrenches at lists.re-wrenches.org> wrote:
> 
> Outback FX R can be built to be 3 phase and solark also works, for 30 k 
> l would look at solark, 3 12's or 15's.
> Jerry
> 
> On Thu, Sep 8, 2022, 4:42 AM Mac Lewis via RE-wrenches 
> <re-wrenches at lists.re-wrenches.org> wrote:
> Hello Wrenches,
> 
> What inverter options are there for 3 phase, UL listed, off-grid 
> inverter systems in the 30kW+ category?
> It's been quite a while since I dove into this...
> Thanks!
> --
> 
> Mac Lewis
> 
> "Yo solo sé que no sé nada." -Sócrates 
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