"Scott Connection"

A Scott-T transformer is also called a Scott connection. A Scott connection is a type of circuit used to derive two-phase current from a three-phase source or vice versa. The Scott connection evenly distributes a balanced load between the phases of the source.
Son Scott is an electrician. When I was studying interior design, I got him to explain, in layman's terms, what 3 phase electric power is and how it works. Here's my 'go' at trying to make all the connections to Scott...

Alternating current or AC is constantly changing direction and intensity.
( direct quote from "Richard Cadena in 'Improving your Phase Relations'." He is author of the book "Lighting Design for Modern Houses of Worship." He is a etcp (Certified Entertainment Electrician). Making the Scott connection, Scott serves in the 'sound booth' at his 'houses of worship.'
In a three-phase system, three circuit conductors carry three alternating currents of the same frequency. They all come in 120 degrees 'out of phase' from each other 'creating a balance of power.' In industrial application, a 'neutral wire' is added to carry an unbalanced load. It is designed for this purpose. (kind of like a mediator or counselor, metaphorically speaking) The power network has to be free from 'harmonics' or 'dirty power.' Computer systems, light fixture ballasts, televisions, copy machines, personal computers, audio visual equipment,... all create some sort of harmonic frequency. If that frequency doesn't mesh with the frequency of the supply coming in, it creates harmonic distortion. This causes the supply power frequency to distort slightly. In that case, the neutral will take the load of the imbalance.
Making the "Scott connection"- Scott is a true 'Life' example of the 'Scott Connection.' He has the ability to bring people together- (you should have seen how many people came out for his 'Extreme Tactics' birthday party). He has a logical mind that can understand all I wrote about today and explain it to me, to make it understandable, so it's understandable to you (hopefully). If he comes across 'dirty power' in electrical or relationships, he deals with it. He may seem neutral, but I assure you, he has an opinion as to who/what is right and who/what is wrong in any given situation and until circuitous relations are more in phase, he supports the system by carrying the unbalanced load. We're so proud of him!