Electric transmission of energy and its transformation, subdivision, and distribution. A practical handbook (1894)
Kapp, Gisbert, 1852-1922 · New York, Van Nostrand · leaf 329
d let O Ia represent thetotal ampere-turns due to armature currents in the barsto the left or the right of the vertical, then O A repre-sents to the same scale as O B the maximum inductiondue to these ampere-turns. We need not stop here toinquire into the exact relation between O Ia and O A,this… … stand at right angles to O la, and therefore also to O B,and that the ratio between O Ia and O A (i.e. armature FIELD A3TPERE-TURNS. 311 ampere-turns and armature field) is a constant. Bydrawing a vertical from the end of B and making itequal to O A, we find O C the maximum induction of…
Electric power production
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