I am trying to do setting I haven’t seen: I have two properties next to each other, for the propose of better understanding I’ll call one property “A”, in this property I have a set of panel with PV feeding the house and sending power to the grid. Second property “B” is feed from grid only. My intention is to install on property B a Quattro, 120/240 Volts for the entire house (existing service is 120/240V 200Amps, actual load do not exceed 70Amps). Here is the setting I am trying to do: I want the Quattro on property B to provide power to the house all the time from the batteries, if the battery reach the lower set point then auto-transfer to the grid on property B until the batteries reach the charged set point and return back to power property B, I want the batteries to be charged from property A (I’ll bring 120/240V 60 amp to charge the batteries) The final intention is to use 120/240V 60 Amps from property A to charge the batteries. And here are the questions: Can I set the Quattro to only receive power from the batteries but do not charge them?; Then would I’ll need a charger to charge the batteries using the 120/240V 60 Amp power from property A? Or can I connect the 120/240V 60 Amp from property A to the Quattro and set this power for battery charging only, while the power out to the load panel on property A be from the A grid?
You mean two quattros sharing one battery bank in which case your title is misleading?
From a theoretical standpoint, it’s possible to connect 2 quattros to one battery bank. Simply connect the second Quattro through MK3 and give second Quattro its own settings. Disable charging by second quattro through VE Configure.
Note that connecting inverters through MK3 has documented disadvantages.
Not sure if I wasn’t clear enough presenting my case scenario, but anyway you miss understood, I do not mean two Quattro sharing one battery bank, I mean “one Quattro with two power source” (as the title said) one power source to be used as power feed through and the other to charge the batteries (after looking deeper on the diagrams) I see now it can not be done (on 120/240 V setting) since you can’t have two “power source in” at the same time, so we can forget about this part of the question. The question now will be if I can set the Quattro to get power from the batteries to convert it to 120/240V but do not charge the batteries? I will be charging the batteries from a different source at all the time. Do I need to do an isolation for this battery charge to send power straight to the batteries only and do not send power to the Quattro (since they sharing the same wires or this does not matter?
Aah. I misunderstood sorry. In my mind, there are typically 4 sources, grid, generator, battery and PV. Of course, there can be other sources like wind, but it seems that is not what you mean.
How do you propose to charge your batteries? Do you want your quattro to never charge the batteries (invert only) or charge them some of the time?
I think this determine your options.
The Quattro will never charge the batteries, batteries will be charged from an external charger either 120/240V or 120V (Primary) to 12/24/48 (Secondary depending on battery used). My concern is if when the battery get low, if then there it will be any issues like the power coming form the charger itself goes to Quattro instead form the battery itself, or how do the battery get charged at the same time power is withdraw, not sure how this will work.
One issue that I see is that a single Quattro does not produce 120/240 from battery; assuming you mean a Quattro-II 2x120 version, when inverting it only supplies 120, not 120/240.
For inverted split-phase power you’ll need 2 Quattros programmed in parallel-split phase configuration.
Yes, I am aware of that, and is how it will be done, I just want to make the explanation simple without getting in to the split part.
Ah okay. On a technical forum, it is usually best to state the reality of the installation rather than trying to simplify, thus we can address the reality with less chance of misinterpretation.
So, as I understand it now, you will have 2 quattros in split-phase configuration and you would like them to not charge the batteries at all, and you would like them to not pull from grid at all, unless a specific configured low-voltage or low-SOC threshold has been crossed, in which case they may pull from grid for passthrough only, but still no charging?
If that’s the case, then I’d suggest disabling their chargers (setting under “Charger”, will be either a toggle if using VictronConnect for the configuration or a checkbox if using VEConfigure) which resolves the first problem, and then use the settings under AC Input Control to set the conditions under which you would like them to accept AC Input, which should resolve the second problem; the battery bank being charged by an independent charger powered from elsewhere is no issue.
Thank You