Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 278
erein ; andthis is necessarily the same for both. This simplest form of polyphase transformer has, there-fore, this advantage not possessed by some more complexforms, that we can accomplish a phase transformation withperfect ease along with our pressure transformation; butit has the very… … ifi nop Plate XIV.—Polyphase transformation. Fig. /, Teslas ring transformer.1888. Figs. 2-4, core-shapes for polyphase transformers. 266 Co lies : [j. f. i., by surrounding the coils with a hollow torus of iron, or byan external ring, or by placing within the ring an iron cen-ter; and a recently…
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