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 259
learning the internal resistanceof the machine, and computing one or morevalues by ohms law, and drawing the straightline through these points, as shown. The curve of total voltage is then con-structed by adding together the ordinates ofthe terminal voltage and drop due tointernal resistance. A… … AMPERES LOAD Fig. 29. External Charac-teristic of Series Dynamo. 6832 ^- ^N 0500 _z ^ \ 1 \ t \ 5600 1 4500 1 3500 0U0O 1 2500 1 1 1500 CHARACTERISTIC CURVESPEED-500 REV. PER MIN. 1000 I soo 0 1 0 7 8 9 10 11 12 13 14 Fig. 30. Characteristic curve of Brush 125-Light ArcDynamo ivithout Regulator, D…
Electrical engineering
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