Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 261
es. How does the speed vary with respect to variationof field strength ? Ans. Decreasing the field strength of a motor increases itsspeed, while increasing the field strength decreases the speed. Under the conditions of maximum field strength, as with switch S onpoint 1, the torque will be greatest… … Pig. 757.—Speed regolatiaa of series motor by cntthig oat sections of the field winding,bi this method the fidd winding is tai>ped at several points, divi^ng the oofl into sectionsand the leads from these points are connected a nnilti-point switdi of the type that wooldbe nsed on a rheostat. By…
Electrical engineering
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