Home Electricity
Electrical Engineering
Electrical Wiring

How does 3-phase electricity from power companies get turned into single-phase for home use?


Wiki User

The simplest answer is that the electric utility uses a transformer across 2 of the 3 hot leads to develop a single hot lead with an earth reference. What follows below is frequently edited by both amateurs and professionals, with mixed results. Wikipedia is a better source of more detailed information on this subject, in part because the article on three phase power has pictures.