International Library of Technology · Scranton, International Textbook Co. · leaf 483
n series andthe terminals brought out to the commutator segments. The field is the same in some respects as that on the oldmachine, but there are four poles on each side of the arma-ture instead of two. On each side the poles are alternately § 19 ELECTRIC LIGHTING. 19 north and south, but poles… … Fig. 13. the field coils, the instructions sent out by the makersshould be followed carefully, and it is always a good plan tosend current through the coils and test the polarity with acompass before starting up the machine. 23. The other chief point of difference between the new-style and…
Electrical engineering
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.], 1902, leaf 483](https://img.insideoutlibrary.com/img/1024/ia-electricengineer03inte-483-302.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-131-44.webp)
