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 34
e latter must start with a rotating field andcome up to speed before the oscillating field can be employed. A knowledge then of the production of a rotating field is necessary;o understand the action of the single phase motor at starting. • LECTRICITY Polyphase Induction Motors.—As : .ions put out… … 14. armature lamination ■ ALTERNATING CURRENT MOTORS 1,293 induction motors are slightly more efficient at all loads than twophase motors of corresponding size, due to the superior distri-bution of the field windings. The power factor is higher, especiallyat light loads, and the starting torque…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-181-82.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-897-577.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-415-184.webp)