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 77
ws the variation ofthe current during this period, ifthe resistance and inductance ofthe armature coils are neglected.It, therefore, remains to consider theeffect of these reactions. Commutation Curves. If the re- 60 PRINCIPLES 51 sistance of the armature coils be not negligible in comparison… … Fig. 62. Commutation Curve when Resistanceof Armature is Not Negligible tact resistance and an armature coil are in series; in the other, onlythe contact resistance; this causes a different current distribution.In other words, the presence of resistance in the coils of the armaturereduces the ratio…
Electrical engineering
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