Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 164
hey are almost underthe pole-tip. The current in the coil under thebrush has to reverse its direction during thetime of short-circuit. This reversal is retardedby the self-induction of the coil (see Section 35).The brushes of a dynamo are therefore movedbeyond the magnetic neutral axis (Fig. 133),… … The small 54. Armature Reaction. If the brushes are placed in the neighbourhood of the pole-tip, the wholearmature winding may be looked upon as consisting of two parts, of whichthe first lies within the angle a (Fig. 131) and the second within the remainingangle i8o°— a. The windings constituting…
Electrical engineering
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