The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 170
. EFFICIENCY TESTS OF A MOTOR. 155 the torque may increase more nearly as the square ofthe current, depending, however, on the saturation ofthe field magnets. For this reason, when running slowly,and taking a heavy current, a series motor can exert agreater torque than a shunt motor. This is of… … 5 10 15 20 25 30 35 40 Amperes.Fig. 51.—Characteristic of Series Mot jr at Constant speed. upwards. That is, the torque increases in a higher pro-portion than the output of the motor. This is also trueof the current curve. The characteristic features of a shunt motor areuniform speed, torque…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
