Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 76
efully distin-guished from the normal neutral plane and from the neutralplane, as shown in fig. 303. 288 HAWKINS ELECTRICITY Commutation.—In order to understand just what happensduring commutation, a section of a ring armature may be usedfor illustration, such as shown in fig. 304. Here the coils… … Pig. 304.—Commutation. This takes place during the prief interval in which any two seg-ments of the commutator are bridged by the brush. The coil connecting with the twosegments under the brush is thus short circuited. During commutation the current in theshort circuited coil is brought to rest and…
Electrical engineering
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