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 79
Fig. 65. Commutation Process withWide Brush 63 54 DIRECT-CURRENT DYNAMOS Demagnetizing Effect of Armature. It has been found neces-sary to shift the brushes ahead of the neutral Hne m generators, andback in case of motors, to eliminate sparking at the commutator.The resultant effect is to produce…
Electrical engineering
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