Перевод: со всех языков на английский

с английского на все языки

polyphase+winding

  • 21 Rawcliffe, Gordon Hindle

    SUBJECT AREA: Electricity
    [br]
    b. 2 June 1910 Sheffield, England
    d. 3 September 1979 Bristol, England
    [br]
    English scientist and inventor of the multi-speed induction motor using the pole amplitude modulation principle.
    [br]
    After graduating from Keble College, Oxford, Rawcliffe joined the Metropolitan Vickers Electrical Company in 1932 as a college apprentice, and later became a design engineer. This was followed by a period as a lecturer at Liverpool University, where he was able to extend his knowledge of the principles underlying the design and operation of electrical machines. In 1941 he became Head of the Electrical Engineering Department at the Robert Gordon Technical College, Aberdeen, and Lecturer in charge of Electrical Engineering at Aberdeen University. In 1944 Rawcliffe was appointed to the Chair of Electrical Engineering at the University of Bristol, where he remained until his retirement in 1975. The reputation of his department was enhanced by the colleagues he recruited.
    After 1954 he began research into polyphase windings, the basis of alternating-current machinery, and published papers concerned with the dual problems of frequency changing and pole changing. The result of this research was the discovery in 1957 of a technique for making squirrel-cage induction motors run at more than one speed. By reversing current in one part of the winding, the pole distribution and number were changed, and with it the speed of rotation.
    Rawcliffe's name became synonymous with pole amplitude modulation, or PAM, the name given to this technique. Described by Rawcliffe as a new philosophy of windings, the technique led to a series of research papers, patents and licensing agreements in addition to consultancies to advise on application problems. Commercial exploitation of the new idea throughout Western Europe, the United Kingdom and the United States followed. In total he contributed twentyfive papers to the Proceedings of the Institution of Electrical Engineers and some sixty British patent applications were filed.
    [br]
    Principal Honours and Distinctions
    FRS 1972. Royal Society S.G.Brown Medal 1978.
    Bibliography
    21 August 1958, British patent no. 900,600 (pole amplitude modulation).
    1958, with R.F.Burbridge and W.Fong, "Induction motor speed changing by pole amplitude modulation", Proceedings of the Institution of Electrical Engineers 105 (Part A): 411–19 (the first description of pole amplitude modulation).
    Further Reading
    Biographical Memoirs of Fellows of the Royal Society, 1981, Vol. XXVII, London, pp. 479–503 (includes lists of Rawcliffe's patents and principal papers published).
    GW

    Biographical history of technology > Rawcliffe, Gordon Hindle

Страницы
  • 1
  • 2

См. также в других словарях:

  • polyphase winding — daugiafazė apvija statusas T sritis automatika atitikmenys: angl. polyphase winding vok. Mehrphasenwicklung, f; mehrphasige Wicklung, f rus. многофазная обмотка, f pranc. enroulement polyphasé, m …   Automatikos terminų žodynas

  • polyphase winding — daugiafazė apvija statusas T sritis fizika atitikmenys: angl. polyphase winding vok. mehrphasige Wicklung, f rus. многофазная обмотка, f pranc. enroulement polyphasé, m …   Fizikos terminų žodynas

  • Polyphase system — A polyphase system is a means of distributing alternating current electrical power. Polyphase systems have three or more energized electrical conductors carrying alternating currents with a definite time offset between the voltage waves in each… …   Wikipedia

  • enroulement polyphasé — daugiafazė apvija statusas T sritis automatika atitikmenys: angl. polyphase winding vok. Mehrphasenwicklung, f; mehrphasige Wicklung, f rus. многофазная обмотка, f pranc. enroulement polyphasé, m …   Automatikos terminų žodynas

  • enroulement polyphasé — daugiafazė apvija statusas T sritis fizika atitikmenys: angl. polyphase winding vok. mehrphasige Wicklung, f rus. многофазная обмотка, f pranc. enroulement polyphasé, m …   Fizikos terminų žodynas

  • star winding — noun : a winding used in a polyphase electric machine in which one terminal of each phase coil is connected to a common point and the other terminals are joined to the outside system compare star connection …   Useful english dictionary

  • полное сопротивление нулевой последовательности (трехфазной обмотки) — Полное сопротивление обмотки фазы в омах при номинальной частоте между соединенными вместе линейными выводами трехфазной обмотки, соединенной по схеме «звезда» или «зигзаг», и выводом ее нейтрали (МЭС 421 07 04).… …   Справочник технического переводчика

  • обмотка фазы — Совокупность витков, образующих одну фазу трехфазной обмотки. Примечание — Термин «обмотка фазы» не должен применяться для обозначения совокупности катушек на одном стержне магнитопровода (МЭС 421 03 02). [ГОСТ 30830 2002] EN… …   Справочник технического переводчика

  • Mehrphasenwicklung — daugiafazė apvija statusas T sritis automatika atitikmenys: angl. polyphase winding vok. Mehrphasenwicklung, f; mehrphasige Wicklung, f rus. многофазная обмотка, f pranc. enroulement polyphasé, m …   Automatikos terminų žodynas

  • daugiafazė apvija — statusas T sritis automatika atitikmenys: angl. polyphase winding vok. Mehrphasenwicklung, f; mehrphasige Wicklung, f rus. многофазная обмотка, f pranc. enroulement polyphasé, m …   Automatikos terminų žodynas

  • mehrphasige Wicklung — daugiafazė apvija statusas T sritis automatika atitikmenys: angl. polyphase winding vok. Mehrphasenwicklung, f; mehrphasige Wicklung, f rus. многофазная обмотка, f pranc. enroulement polyphasé, m …   Automatikos terminų žodynas

Поделиться ссылкой на выделенное

Прямая ссылка:
… Нажмите правой клавишей мыши и выберите «Копировать ссылку»