Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 74
Fig. 62. Fig. 63. Stages in the development of the Gramme ring winding. core may generally be cut out as shown so as to save material,the depth d must not be made too small. It is now necessary to connect the individual conductors to-gether so that their voltages add up and this is done by…
Electrical engineering
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