Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of, pertaining to, or involving multiple alternating currents that have the same frequency but differ in phase
  • adj. Of, pertaining to, or consisting of multiple phases of matter

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having or producing two or more phases; multiphase.

from The Century Dictionary and Cyclopedia

  • In electricity, having components of various phase: referring to an alternating-current system in which several currents of equal frequency are used, which differ from one another in phase by a definite fraction of a period, as, in the three-phase system, three currents differing by one third period, in a quarter-phase system, two currents differing by one quarter period.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of an electrical system that uses or generates two or more alternating voltages of the same frequency but differing in phase angle

Etymologies

poly- +‎ phase (Wiktionary)

Examples

  • And meanwhile, he ` s still trying to find someone to take up this alternating current engine and a better system of transmission, called polyphase (ph) electricity.

    Empires of Light: Edison, Tesla, Westinghouse, and the Race to Electrify the World

  • A three-phase current winding (also known as polyphase winding) with three pairs of poles is connected to a three-phase current having a frequency of 50 Hz. Determine the rotational speed of the rotating field per minute!

    8. Three-phase Current

  • Such a merge-sorting process is called a polyphase sort.

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  • The new MCUs are ideal for compact, battery-driven systems such as polyphase electricity meters and handheld terminals, connected devices such as USB2. 0 PC peripherals and healthcare equipment, as well as industrial Ethernet systems.

    WebWire | Recent Headlines

  • When linked to Tesla's polyphase method of generating and transmitting electricity, this motor became the foundation stone on which the modern electrical power industry is built.

    DK Matai: Wireless Power: Has The Time Come?

  • In 1914 he was awarded the AIEE Edison Medal "For meritorious achievement in his early original work in polyphase and high-frequency electrical currents."

    Tesla, Nikola

  • During his year there he thought of the principle of the rotating magnetic field, upon which all polyphase induction motors are based.

    Tesla, Nikola

  • By 1888 Tesla had obtained patents on a whole polyphase system of alternating - current dynamos, transformers, and motors; the rights to these were bought in that year by George Westinghouse, and the "battle of the currents" was begun.

    Tesla, Nikola

  • The Westinghouse exhibit also included a complete working model of a polyphase system, including step-up and step-down transformers, a short length transmission line and switch board.

    Westinghouse, George

  • He acquired exclusive rights to Nikola Tesla's patent for the polyphase system in 1888 and lured Tesla to join the electric company and continue his work on the ac motor he had been developing.

    Westinghouse, George

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