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 263
so great a reduction isseldom satisfactory since comparatively slight increases in theload will cause the motor to stall. Shunt field regulation may be obtained up to any point for which themotor is suited, the only limitation in this case being the maximumspeed at which the motor may be safely… … Fig. 759.—Cutler-Hammer multiple switch starter with no voltage release; for use with largemotors, or with motors of medium size where the starting conditions are severe or whenmore than fifteen seconds are required to accelerate the motor. In operation, the cuttingout of each step of resistance is…
Electrical engineering
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