Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 294
balancing is a no-load condition, and prac-tically disappears when the transformer isloaded up. The figs, on the Plate facing p. 576 are photographs of large three-phasetransformers of the core type. Fig. 2 shows the shell arrangement, whichconsists practically of three separate trans-formers in… … Fig. 2.—Three-phase Transformer (shell type). the core type; for should one phase burn out,the other two may still be used, especiallyif the faulty coils be short-circuited. Theeffect of such short-circuiting is to preventall but a very small flux from threadingthe faulty coil. [r. c] Tpansforinep,…
Electrical engineering
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