| 单词 | in star |
| 释义 | > as lemmasin star 19. Electrical Engineering. A configuration of (typically) three electrical windings or other impedances in which one end of each is connected to a common node; = wye n.2 b(b). Frequently in in star: (connected) so as to form such a configuration. Cf. delta n. 3b.Such a configuration is often used in a symmetric three-phase system, in which the alternating current in each winding is at the same frequency but offset by a third of a cycle. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > motor > [adverb] in star1891 the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > motor > [noun] > induction motor > connection to common point > set of windings with star1891 wye1980 1891 Electr. Rev. 23 Oct. 475/1 These three bobbins may be connected with three outer wires in two different ways; in a star or in a triangle. 1891 Electr. Rev. 23 Oct. 475/2 (caption) The ends of each Bobbin..are free, and permit the connections of the three, in star or in triangle. 1907 J. F. C. Snell Distribution Electr. Energy 19 A usual practice is to require the middle of the star, or neutral point, to be earthed. 1924 A. L. Cook Elem. Electr. Engin. xviii. 509 When starting, the three groups of coils are connected in star (or Y). 1962 Newnes Conc. Encycl. Electr. Engin. 709/1 A 4-branch star converts to a 6-branch mesh. 1976 F. de la C. Chard Electr. Supply v. 147 Transformers for 3-phase duty..may have both primary and secondary windings connected in delta or star. 2014 Frontiers in Energy 8 365/2 The switching from delta to star or vice-versa should be made at an appropriate mechanical load. < as lemmas |
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