The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 142
ne. In the case of a shunt motor it is essential that themagnets should always be excited when the armaturereceives current, in order that they may act upon thearmature and produce rotation. This is usuallyaccomplished by the addition of a sector to the switch,as sho\^ai on Fig. 41, where the… … W^
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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