Electronics > Projects, Designs, and Technical Stuff

Single phase to three phase sinewave converter

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Yansi:
Why are you again putting in my mouth something I haven't said?  Are you troll or dumb or what? Could you please take the time and point me to the place, where I have offered as a solution to the OP, to get a 3ph power to his house?

And again and last time, I am clearly stating, that to obtain a 3ph here, you just need a meter change-out, You will NOT pay any extra wiring (except your own side to the 3ph appliance), 3ph power is already and always present at the place of the meter.

Detached houses in central EU do have indeed 3ph power available, and even more often used than just flats, as typical mountain cottages uses 3ph for heating, water pumps and even for cutting firewood. In flats, the 3ph is used sometimes also for heating and for example electric cooking stoves.

Okay, then leave your singlephase in Spain, nobody in central EU could care less.   14kW you say? That would be a nice 3x20A supply in here.  That means you (in Spain) have about 2x 16mm square wires. Impressive. We need just 3x 2.5mm square for the same 14kW. You are probably smart enough to figure out, if 3ph power into remote household makes sense, aren't you?

But you can still be an non-believer, as you wish.  No wonder that you are stuck with single phase, if people think like you.

soldar:
Ok, I will wait for someone to come in and say "I have three phase supply in my residential home as do all the homes around me and I am located in such and such place". In the meanwhile I stand by what I said. It is not true that "in the countries above mentioned (DE, AU, CZ, PL, SK) 3ph present in almost if not every household". Not true at all.

Yansi:
Unfortunately for you, it is true.  Please continue living in Spain and leave this thread.

You have probably  not once put any useful information in this thread, you seem to be just trolling for whatever reason.  Continue doing so, you will probably get reported.

soldar:

--- Quote from: IanB on January 14, 2019, 08:07:35 pm ---Someone will come along and tell you that it is true where they live. It may not be true in Spain, or Britain, or France, but I have been told it is true in central and eastern parts of Europe. In such places every home has three phases at the switchboard and big appliances like heaters use a three phase supply as standard. You may not believe it, but that does not mean it is not true.
--- End quote ---
Well, I am not saying it is somehow impossible, I am saying I have not seen it. And he said

--- Quote from: Yansi on January 14, 2019, 12:04:39 am ---But I am not sure, how these are really made in the US, as we do not have to deal with this garbage in central EU. (3ph present in almost if not every household).
--- End quote ---
which is hogwash. He is talking like the US is some backward water compared to Europe where we all have 3 phase supply at home. I am willing to bet that only a very small percentage of homes in Europe have 3 phase supply.

sanwal209:
Sorry folks for late reply, I had fever.

Let me write down brief requirements. So We developed a device which does testing coils of diesel generator. While testing there is a point when generator have to be off due to certain requirements and to continue testing we need to feed 3 phase AC to the coils of generator. Attached is rough block diagram.

Problem is we dont have time to develop inverter which is controlled by micorcontroller. it will require alot of firmware development. Our best bet would be a SoC or IC which takes downgraded mains supply and generates 3 phase output which is synced with input mains.

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