Are you sure it is 2 phase , and not single phase 120 or 240 ?I need to convert a two phase three wire system to a three phase four wire system. I can do this with a Scott T transformer but I am not sure where to connect the neutral on the three phase secondary windings to achieve the four wire output that I need.
2) Yes. I am committed to use a Scott T transformer.
3) Total power will be 45 kVA with an input of 240 V, two phase, three wire and an output of 208/120 V three phase, four wire.
4) The load is general power and not a motor so no variable frequency is necessary.
Where in the USA do you have two phase power and not a full three phase power?
If you are thinking that the common 120/240 VAC that is present in the vast majority of home is two phase you're already wrong. It's simply a single phase 240 VAC supply that has it's center tap connected as the common/ground reference point.
That's all you're gonna get. You're experiencing Pennsylvania (USA) humor.I am interested in your complete reply. All I got is "Here we go..."
Are you operating an antique generator of some sort? Or are you running 3-phase into a Scott T transformer to get the 2-phase power.I appreciate your help but it is counterproductive to assume that I don't know the difference between a single phase common three wire system and a two phase (displaced 90 degrees) input connected in an L fashion with the corner as the neutral. Please try to help me by answering the original question as stated.
I stand corrected.I read Philly does.
Not a very friendly answer. If everybody had it in their backyard I probably would not have to pose the question. No schematics are required. Waveforms are not unusual: The two phase input has a garden variety sine wave each displaced by 90 degrees and the output likewise has garden variety sine wave each of three displaced by 120 degrees. I do not require mind readers: a simple knowledgeable person will do. I can do the transformer conversion but I was asking how to establish a neutral connection in the output. When I get my answer, and I will, I will forward it to you so you can help someone else.ersch
You have to expect a little skepticism? This is your first post on this forum. You pose a question based on a highly unusual power form as if everyone has it available in their backyard. You present no schematics, no wave forms. You have asked a complex question involving a very unusual waveform. We are not mind readers, and you appear resistant to provide information needed for a meaningful exchange.
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