Electric transmission of energy and its transformation, subdivision, and distribution. A practical handbook (1894)
Kapp, Gisbert, 1852-1922 · New York, Van Nostrand · leaf 382
and is therefore positive. The relative speed SINGLE PRASE MOTOR. 363 of the armature as regards field 2 is similarly 0 01— 0 s= s 0l9 and the torque produced by field 2 is given bythe length of the line s T2. This is exerted in a directionopposed to the movement, and is therefore negative.The… … this curve passes through zero for speed zero, that is,when the armature is at rest ; and that it again passesthrough zero at a speed slightly short of synchronism.Between these two values the torque is positive, and hasone maximum. The working is stable for armaturespeeds exceeding that which…
Electric power production
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