Help: Possible Power Jack transformer

 Shorting this L2 to the new Neutral generated by the transformer CAN cause serious issues, and it's best left unconnected 

From this new  diagram  the red wire from the solar inverter  go to the red wire of breaker  box .   Do  NOT  connect the red wire of solar inverter to the  new Neutral  yellow wire generated  by the transformer AS3 .    

 the max safe watts of 2500-3000 is pre phase or total?   Use a kill-a-watt  meter to make sure the  total load is less than  3000  watts  and if it is a inductive  load  like a  microwave oven then  the  surge  must be less than  3000 watt .   One microwave  oven surge may be  5000 watt  but running  may be  2000 watt  and  bad thing may happen  because of the 5000 watt surge  that the AS3  can not handle .  

<a href="/monthly_2021_11/295420291_Screenshot(781260).png.07a3793217ec61b61c4e2d9bff490787.png" class="ipsAttachLink ipsAttachLink_image"><img data-fileid="923" src="//forums.genetrysolar.com/applications/core/interface/js/spacer.png" data-src="/monthly_2021_11/1704324492_Screenshot(781260).thumb.png.c1a074408cc86b1f08e9165690a176dc.png" data-ratio="56.1" width="1000" class="ipsImage ipsImage_thumbnailed" alt="Screenshot (781260).png">

6 hours ago, dickson said:

 Shorting this L2 to the new Neutral generated by the transformer CAN cause serious issues, and it's best left unconnected 

From this new  diagram  the red wire from the solar inverter  go to the red wire of breaker  box .   Do  NOT  connect the red wire of solar inverter to the  new Neutral  yellow wire generated  by the transformer AS3 .    

 the max safe watts of 2500-3000 is pre phase or total?   Use a kill-a-watt  meter to make sure the  total load is less than  3000  watts  and if it is a inductive  load  like a  microwave oven then  the  surge  must be less than  3000 watt .   One microwave  oven surge may be  5000 watt  but running  may be  2000 watt  and  bad thing may happen  because of the 5000 watt surge  that the AS3  can not handle .  

<a class="ipsAttachLink ipsAttachLink_image" href="/monthly_2021_11/295420291_Screenshot(781260).png.07a3793217ec61b61c4e2d9bff490787.png" data-fileid="923" data-fileext="png" rel=""><img alt="Screenshot (781260).png" class="ipsImage ipsImage_thumbnailed" data-fileid="923" data-ratio="56.1" style="height:auto;" width="1000" data-src="//content.invisioncic.com/g308908/monthly_2021_11/1704324492_Screenshot(781260).thumb.png.c1a074408cc86b1f08e9165690a176dc.png" src="/applications/core/interface/js/spacer.png" />

I there any website to buy one that supports 5000watts? I saw in Genetry solar youtube video that he had some for selling, but cant find them in the store.

If you just want a split-phase output from a Chinese HF inverter, then what you are looking for would be called an "autotransformer".  I wouldn't count on a PJ transformer to do this very well; they are terribly imbalanced (in both winding specification and wire size).

You can try the one you have...worst case, it'll overheat (you would be advised to keep a close watch on it, as without thermal protection, an overheated transformer can easily start a fire.)

Ah now...the transformer will handle surges well past 6kw, just not for very long.  Don't think that's to the fusing point of the winding yet 😉.

Total load.

I there any website to buy one that supports 5000watts? I saw in Genetry solar youtube video that he had some for selling, but cant find them in the store

I  use the 352 dollar  autotransformer  for microwave oven  but  bad thing happen  when use with heat pump .

Comment about  autotransformer  on youtube .

I was looking at the Gentry Solar inverter also. But I don't know how to add the futures of the Chinese hybrid inverters to it.

For example:

1)it charge the battery from Solar and Grid/Gen

2)If battery goes very low it transfers the load to grid while it charges the battery to certain voltage.

Is there any guide to add all the hybrid futures to Gentry Solar standalone inverter?

I'll let you in on a secret, well not really a secret.  The Chinese 'hybrid' probably just has a standalone bare solar charger in box.  If you want an example you can find 'unboxing' videos on youtube where people unpack and take the lid off Chinese LF hybrid inverters.  Pay attention and you might just see a separate solar charger in there.

So the answer to how do you add a solar charger to the GS inverter?  Buy any solar charger you like and wire it to your battery bank as you normally would (ie, follow the instructions).

but the grind charging and 10ms auto-transfer to grid on low battery voltage part? that is in the charger setup also?

Genetry Solar inverters can charge the battery from AC input (Grid/Gen)

Already implemented.  All settings are fully adjustable (within reasonable ranges), so you can specify exactly at what voltage you want the transfer (TO and FROM grid) to occur.  Transition from battery to grid is currently seamless on Rev. C-based GS inverters (all current ones going out), while the return transition needs a tad of work 😉.  Safety is key, even if there's a bit of a glitch.

Like @thebutcher pointed out, yes, most "hybrid" inverters just throw a cheap, small MPPT into the box, and people think they got such a great deal.  I just saw a video about a SunGold Power 12kw inverter, and that thing has a laughable 145v max, 60A MPPT in it.  I mean, it will barely handle 3kw of solar...which means you will need external MPPT charge controllers--and then they're all different settings/mismatched, and it all goes down the tubes.  In a nutshell, that's why I currently do not plan to add an MPPT to GS inverters.

Also, said "hybrid" units more often than not give you either no settings...or at best, cursory settings.  GS inverters are FULLY customizable--and if you need something changed (within technically possible reason), it can be handled via firmware update.

Sean demonstrated the current ATS functionality of the GS inverters in this video:

Sean demonstrated the current ATS functionality of the GS inverters in this video:

I  already  wired  a  separate 50 amp  breaker box  for output  to a 12kw GS inverter  to be use like in Sean  video  wiIn    Grid  Backup    that  a powerjack  can not do .   A  single  100 feet neutral  wire  connect  the   breaker  box to the  main service  entrance  box neutral bus   and  a separate  ground wire go  to the  main  entrance  ground rod .  No  inverter  to hook up at this time  .      

On 11/27/2021 at 1:01 PM, Sid Genetry Solar said:

Sean demonstrated the current ATS functionality of the GS inverters in this video:

 

That is great! Im from Puerto Rico.. will i be able to buy the 12kw one when it gets released?

On other topic.

Are this calculation for 5kva autotransformer core vs size and winding are correct? Im trying to understand what is really needed for actual continuos 5000kw

<a href="/monthly_2021_12/1224754071_transformercoresize.png.78bf0d7a7be60e5590e3d8e485e364e7.png" class="ipsAttachLink ipsAttachLink_image"><img data-fileid="948" src="//forums.genetrysolar.com/applications/core/interface/js/spacer.png" data-src="/monthly_2021_12/1224754071_transformercoresize.png.78bf0d7a7be60e5590e3d8e485e364e7.png" data-ratio="59.66" width="885" class="ipsImage ipsImage_thumbnailed" alt="transformer core size.png">

If you have a freight forwarder based in the U.S., I suppose so.  We don't like to bother with international shipping, as the risks are considerably higher, and there's a lot more that can go wrong with shipping.

I don't know THAT much about transformer core size...as the composition of the core material will significantly change the requirements...but I DO know that at least so far, the maximum power limitation of a transformer core (at least for a toroidal core), is not so much the core itself, as it is the ability to get sufficient wire around the core to carry the necessary load.  There's probably a point at which this isn't always the case--but at least so far, the wire losses are by and far the biggest issue.

Most of it is surely heat dissipation as the limit, beside the obvious physical size limit. Plan the wind around having about 1 tesla flux density. A well designed transformer will have roughly equal volumes of copper on the primary and secondary. Ben knows how to wind a good transformer. I don't know how to tag him but he's searchable here.