Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 316
veyed by four wires, or by three wires.In the four-wire two-phase system there isa pair of conductors to each phase. Kepre-senting the generator winding by two wind-ings AB and CD (fig. 1) placed in quadrature,A Kg. 1.—Fonr-wire Tiro-phase System the four-wire system requires two conductorsfor each… … Fig. 2.—Three-wire Two-phase System times that in the other two, and the systemreally becomes an unsymmetrical three-phasesystem, having a right-angled triangle ofvoltages between the three conductors. The
Electrical engineering
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