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three-phase

[ three-feyz ]

adjective

, Electricity.
  1. of or relating to a circuit, system, or device that is energized by three electromotive forces that differ in phase by one third of a cycle or 120°.
  2. having three phases.


three-phase

adjective

  1. (of an electrical system, circuit, or device) having, generating, or using three alternating voltages of the same frequency, displaced in phase by 120°
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of three-phase1

First recorded in 1890–95
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Example Sentences

Long distance, high tension transmission lines are generally three-wire lines carrying three-phase a.-c.

Two-phase of three-phase currents would give two or three positive impulses during this time.

Inside this anchor tube ran the thick coaxial cable that fed three-phase electric power from the atomic pile to the ship.

The magnetic field effect, Ishie had explained; but this three-phase RF generator—that puzzled him for a while.

The power is transmitted at a voltage of 56,000 with a frequency of sixty cycles per second (three-phase).

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