Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 180
o the S pole, anddown around through the baseplate. Another form of fieldmagnet is that in Fig. 173. This type was usually mountedon a wooden base, for tbe same reason that the nonmagneticplate was used in Figs. 170 and 171. DIRECT-CURRENT MACHINERY CONSTRUCTION 163 In all the foregoing selunies… … FiO. 172.—Machine with the fieM poles reversed from that in Fig. 171. Consequent-Pole Type Machine.—Another type of fieldpole used in the development of the electric machine is givenin Fig. 175. In this construction if the top of one field coilis made north and the other south, the lines of force…
Electric machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-141-58.webp)
