Connecting Single Phase Solar Inverter to Two-Phase House: Bi-Directional Meter Accuracy

Question

hello gentlemen and ladies I have a photovoltaic installation recently. I have two phases connected to the house. Separate phase to the first floor and separately to the ground floor. Single phase inverter. I have the inverter installed in the boiler room connected to a vase that goes to the...

theo33 · Answer

If your meter has phase-to-phase balancing, it should indicate correctly regardless of which phase it is connected to and whether (it will take more power from PGE than it gave it back) it also depends on the production and the load.
Read about balancing and what meter model do you have?

faktorXL · Answer

I have a counter like in the picture. I have heard and read about phase-to-phase balancing. but the more I read, the more I have doubts about whether it works well for me. I have a 2.5 kv installation

prose · Answer

I have the same and do not balance.

Tech132 · Answer

Switch the building over to one phase and after a problem, or write down the meter and check if it balances.

faktorXL · Answer

I'm not an electrician I attach a poor diagram to you as I have all this installation connected to the network. Once again I will say that I am not an electrician, that's why the schematic diagram of connecting the house and solar installation looks like

how do I break it like in Figure 2 will it work ??

because as I have it now it doesn't work well

Added after 4 [minutes]:

Tech132 wrote:
Switch the building over to one phase and after a problem, or write down the meter and check if it balances.

already checked does not balance. I even got a bill from PGE, I called the area after a few days, he called me back and said that in fact the installation was not working properly and I had to talk to the installer and he bounces the ball and claims that the area wrongly connected the meter myself I need to center who does me in h. ..... a.

Jan_Werbinski · Answer

Switch all energy consumers and inverters to one phase. Watch the use of high power devices such as household appliances. If it turns out that you are exceeding power and protection pops up, it means that you have overdone and you have to spread the use over time or use some devices on a phase without solar energy. It is best to give everything that is non-stop and is low power per phase with PV, and only occasionally used for the others. In this way you eliminate the effect of no balancing.

faktorXL · Answer

If I swell in the fuse box, what do I have in the workshop (I have the cable pulled from the house from it), will it be romping? Do I have to unpin in a chest at home? (I have one phase with fuses at the bottom and the second phase goes up) All household appliances at the top have only lighting, computer and TV nothing else will burden the phase.
if I hook in the chest in the workshop, then to the counter, then it will go from one phase (I speak well) and to the house too?

I don't know if I can figure it all out: / if you are not an electrician

Jan_Werbinski · Answer

It will be if you do not exceed the load of circuits and protections, and you only have single-phase receivers. For example, it is enough for me to run three larger devices on one phase at the same time for the fuse to trip.

kortyleski · Answer

This is not a rummage. An electrician will not take much for such a switch. And you and your family will be safe.

Leon444 · Answer

support And additionally I will say (but this is only my opinion) that it makes no sense to switch everything to one phase even if we do not have phase balancing in the meter, we load one circuit terribly, it is not a flat in a block, the house has a more extensive installation, after someone has appliances in the garage larger or an electric stove, they will not do everything in one phase. With the six-month balancing that is now in the Act, I am surprised even that the subject is still rolled out ... The total profit is not great and the possibility of overloading the installation is huge ...

Jan_Werbinski · Answer

One phase is not one circuit. You can switch if someone knows how many washing machines at a time can work. You need to know the basics. User profit is a 25% bonus on every kWh consumed directly.
Profit for society means reducing the load on transmission networks.
If he can't, he will learn or spoil it and let the electrician earn.

Leon444 · Answer

As for me, this is not in line with art and more is to lose than to gain because as you can see from users' accounts, everyone seems to plus half-year balancing, and at night you still draw electricity from the network ...
Whatever

let everyone do as they like, a free country

I have a meter that balances me and three-phase devices

after that I watched those burned home switchboards and not only on "electrician not ticking" on FB ...

Jan_Werbinski · Answer

There is no such thing as annual balancing in the context of the interphase balancing conversation. You have been mistaken for the statutory discount. You have a balancing meter and advise you how to fill the hungry.

Leon444 · Answer

But I didn't write anywhere about annual balancing. I wrote six months ...

Anonymous · Answer

Annual or half-yearly has nothing to do with phase-to-phase balancing, which is done in real time. Maybe it has only so much in common that if it doesn't balance between phases it will have more to be balanced yearly / semi-annually. The problem is that in inter-phase balancing 100% is balanced while in semi-annual only 80%.

faktorXL · Answer

thanks to colleagues how will everything be advised. I connected the house to one phase and see how everything will work

Connecting Single Phase Solar Inverter to Two-Phase House: Bi-Directional Meter Accuracy

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