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 133
Figs. 1.931 and 1.932.—The Berry combined core and shell transformer. It consists of anumber of inner and outer vertical and radial laminated iron blocks built up of the usualthin sheet iron, with the coils between. The magnetic circuit is completed at the top andbottom by other laminated blocks…
Electrical engineering
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