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 222
OIL DUCT … IGS. 2,444 to 2.446.—Sectional views of General Electric pole type regulator winding andcore. The secondary core has only two slots containing a single coil, while the rotor orprimary core has four slots. Two of these slots are occupied by a single primary coil,and the two circular slots in…
Electrical engineering
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