Origin of three-phase
Examples from the Web for three-phase
Historical Examples of three-phase
The result produced by three such coils is called a three-phase current.Physics
Willis Eugene Tower
They are three-phase machines, delivering twenty-five cycle alternating currents at an effective potential of 11,000 volts.
The round dial instrument shown at the bottom of each row of instruments is a three-phase recording wattmeter.
It will be seen, therefore, that by doubling the three-phase system the pulsations are already very greatly reduced.
The rail mill is operated by three-phase induction motors of from 2000 to 6000 horse-power capacity.