Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 287
eads to segments b and c from the right are shown inter-changed. This short-cir-cuits the coils shown inheavy lines. The abnormalcurrent resulting in thesewould usually cause themto burn out. Fig. 139 shows the resultof placing all of the top leadsor all of the bottom leads onesegment beyond the… … Fig. 139. Diagram Showing the Effect of WrongConnections to Commutator Bars 250 ELECTRIC RAILWAYS 155 connections Is to change the direction of rotation of the armature. Itmay be noticed by comparing the two figures that with the positivebrush on segments a, the arrows show the currents to be in…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Mystic Masonry, or, the Symbols of Freemasonry and Greater Mysteries of Antiquity (1911) [Supplemental Harmonic Series] (1911)](https://img.insideoutlibrary.com/img/200/ia-mysticmasonryors00buck-298-7.webp)
