2Ph to 3 Phase Converter Circuit

Buy a suitably-rated inverter.

Agreed. Spend a couple of hundred dollars for a solid state converter. They are small and work great. Unless you are poor and already have a suitably sized 3 phase motor you can convert into a rotary convertor, this is just too easy.

Do not confuse the use of the term "2 phase power".

There is what is called "true" 2 phase power, which was designed that way from the outset and is characterized by two independent phases separated by 180°. This is the type of system that requires a Scott-T transformer to convert it.

In many countries however, people use the term "2-phase power", to describe "2 of the 3 phases" that are fed to their system by the utility. This is not technically "true" 2 phase power because the phase angle relationship between them is still 120°, based on the 3 phase feed. A Scott T transformer will not really "create" 3 phase power from that in the form that you think of 3 phase power as being.

Either you find a source of that 3rd phase, or you use a converter to re-create it. There are rotary converters, static converters and solid state inverters.

Had to give you a GA for a spot on answer! that I wanted to make!!

Many confuse themselves with if 3 wires delivers 3 phases, then two wires delivers two!!

Except in the USA as you mentioned correctly.....which is a strange beast as both wires reference to neutral at 110 volts or together at 220 volts 180° between phases.

1. two phase to 3 phase inverter

2. Buy normal commercially available VFD connect 3 phase motor of lower rating than VFD.

Do you know Leblanc connection?.

<Sigh> I feel like a Semantics Cop...

The LeBlanc Connection does essentially the same thing as a Scott Tee connection; it converts TRUE 2 phase power to 3 phase. If the user really is one of the 300 to 400 people left in the world who TRULY has TRUE 2 phase power, that works.

But if all of this was predicated on the mis-translation of "2 phase" to mean "2 out of 3 phases", as it does everywhere but in a few shrinking neighborhoods of Philadelphia and Niagara falls in North America, then it will NOT work.

So basically we still don't know.

From here on out people, if you are not sure what you are talking about, please don't post any more and confuse the "little people" who jump to conclusions and say things like "send me that circuit". It may actually cause harm!