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 264
empt to stop a motor by forcibly pulling open the starting box.Disregard of these instructions may cause burning out of the field coils. OPERATION OF MOTORS 683 Ques. How is a wide range of speed regulation secured? Ans. By a combination of the two methods. Regulation by Armature Resistance.—Speed… … Fig. 700.—Cutler-Hammer speed regulator with no voltage release, regulation by armatureresistance only, reducing speed of motor below normal. No resistance in the armature cir-cuit. No provision is made in regulators of this type for increasing the speed of the motor.The maximum speed obtamable…
Electrical engineering
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