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 258
rmulas for calculating the magnetic circuit of dynamos, and from a com-bination of those curves the curve shown above can be constructed, showingthe aggregate excitation necessary to produce certain voltages. For sample of such a composite curve the reader is referred to page 149of the fifth… … FiG. 28. Magnetization Curve. 246 dard ratio of the scales on which the curves are based should be settledupon. 2. External Characteristic. — This curve is a curve of results, inwhich the dynamo is excited from its own current, and with the speed con-stant, the terminal voltage is read for…
Electrical engineering
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