Origin of three-phase
Examples from the Web for three-phase
In Europe, the birthplace of the three-phase system, it has failed to displace continuous current for transmission work.Electric Transmission of Water Power|Alton D. Adams
The rotation of a three-phase motor may be reversed by reversing, and Charging Benches any two of the cables.The Automobile Storage Battery|O. A. Witte
The power is transmitted at a voltage of 56,000 with a frequency of sixty cycles per second (three-phase).The Romance of Plant Life|G. F. Scott Elliot
The rail mill is operated by three-phase induction motors of from 2000 to 6000 horse-power capacity.
The result produced by three such coils is called a three-phase current.Physics|Willis Eugene Tower