Electric transmission of energy and its transformation, subdivision, and distribution. A practical handbook (1894)
Kapp, Gisbert, 1852-1922 · New York, Van Nostrand · leaf 436
I KAPP. 411 a triple expansion Davy-Paxman engine at 120 revolu-tions per minute, and has an output of 500 amperes at260 volts or 130 K.W. The field has 8 poles and thearmature is drum-wound with series end connections soas to necessitate only two sets of brushes 135° apart. A Fig. 148. … machine of the same type, but with a four pole field andsupplying current for a military electric railway, has thefollowing constructive data—output 47 K.W. at 450 volts,speed 200 revolutions per minute, armature core 31 inchesdiameter by 20 inches long, wound Avith 470 bars withseries end…
Electric power production
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