Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 369
with a given maximum speed ofarmature and commutator periphery, the distance betweenadjacent poles and, therefore, adjacent brush holders, isinversely proportional to the frequency. With high volt- 370 ELEMENTARY ELECTRICITY age 60 cycle converters these facts necessitate high com-mutator speeds,… … Fig. 172. Westinghouse 1,500 K. W. Rotary Converter, Pennsylvania,New York and Long Island R. R. load. This should always be borne in mind when choosingthe frequency of a system on which rotary converters areto be used, and it applies particularly to 500 and 600 voltrailway rotary converters, which…
Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-291-168.webp)
