Electric transmission of energy and its transformation, subdivision, and distribution. A practical handbook (1894)
Kapp, Gisbert, 1852-1922 · New York, Van Nostrand · leaf 367
is drawn at right angles to the radius O A), givesto a suitably chosen scale the torque corresponding toany speed ; always provided that the field is really con-stant. This, however, cannot possibly be the case. Theonly constant quantity in the working of the motor is thesupply E.M.F. If, then, the… … reduced or enlarged in proportion, the angles remainingunaltered. Call m the ratio between the given supplyE.M.F., and that resulting from the diagram, then thetrue currents and true volts will be m times the corre-sponding values as plotted in the diagram ; the trueinduction will be m B and the…
Electric power production
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