Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 165
erof phases, are used to convey the ac fromthe rotating armature. An induction motorwith a coil-wound rotor is provided with slip rings to convey the current to the start-ing resistances. See also Rings, Slip. [Collector ring, a ring used for making a slidingconnection between » fixed and a.… … Fig. 1.—Commutator End Rings the type of commutator in whose construc-tion they are employed. In fig. 1 the com-mutator rings are shown at A. Clamping Rings.—The term clampingrings is applied to the commutator end rings,and also to rings which are placed aroundthe outside surface of a commutator…
Electrical engineering
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