Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 392
other, and are subject to an auxiliary E.M.F. from the samegenerator, but reduced to the proper voltage by the auxiliary trans-former B. The currents were measured in all three transformer circuits, and theE.M.F. of one-half the secondary was measured. The method is accurate enough for large units,… … Fig. 66. General Electric Method of Testing OneLarge Transformer. Temperature Rise. To ascertain the temperature rise of the different parts of a transformer,thermometers are placed on the various parts, and readings taken at fre-quent intervals. These readings, however, indicate only the surface…
Electrical engineering
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