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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 66

An illustration from 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, leaf 66
,examplesof which have been given byVonGaisberg,*Kohlrausch,**M.E. Thompson*** Ryanf,and Shephardsonff. Armature Reactions. Thisleads to a consideration ofthe reactions of the arma-ture when the generator is operating, which are manifested in manyways, the most important being: * Elektroterhnische… … Fig. 51. Voltage Curves at No Load 52 PRINCIPLES 43 (1) A tendency to crosR-magnetize the armature. (2) A proneness to spark at the brushes. (3) Variation of the neutral point of the armature with the amountof current. (4) The consequent necessity of shifting the brushes. (5) A resultant tendency…

Electrical engineering

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