Power distribution for electric railroads by Bell Louis 1864-1923

Author:Bell, Louis, 1864-1923. [from old catalog]
Language: eng
Format: epub
Tags: Electric power distribution
Publisher: New York, Street railway publishing company
Published: 1900-03-25T05:00:00+00:00

Fig. 76.

Another and a very ingenious form of generator with two phase stationary armature is shown in Fig. 77. Here the armature is composed of two laminated rings placed side by side in a common frame a short distance apart. Each is slotted to receive heavily insulated rectangular coils as shown in Fig. 78. The revolving part of this machine, is simply a steel casting furnished with a set of outwardly projecting laminated pole pieces at each end. The field winding is a single fixed circular coil around the field between the two armature rings. The armature current is taken off from fixed binding posts

TRANSMISSION OF POWER FOR SUBSTATIONS.

151

instead of brushes, just as in the generator shown in Fif. 76, but in this latter machine there are not even brushes for the field current or any other purpose. These inductor dynamos may be safely wound for as high as 5000 volts even in machines of moderate size.

With 5000 volts available at the terminals the transmission of TXJwer over moderate distances can be effected

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