单词 | three-phase |
释义 | > as lemmasthree-phase three-phase adj. ΚΠ 1892 Lightning 3 Mar. Gloss. Electr. Terms Three phase system, a system of distribution of electrical energy in which three alternating currents, each differing from the two others by one third of the period, are used. 1904 M. B. Field in M. Maclean Mod. Electr. Pract. II. i. vi. 28 If one of the phases of a ∆-connected system is disconnected, the remaining two can still supply a three-phase current, but with a diminished efficiency. 1922 Electr. Rev. 30 June 928/1 The equipment for each end of the line of a 3-phase system comprises three protective transformers, a biasing transformer, an earth fault relay, [etc.]. 1926 Jrnl. Iron & Steel Inst. 114 77 These solutions of the important problem gave a simple and comparatively cheap installation, without transforming the three-phase current to direct current or..regulating the speed of the generator. 1961 Listener 9 Nov. 767/2 The normal three-phase alternating current system. < as lemmas |
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