Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 109
Fig. 157. Fig. 158. Fig. 157.—Double armature control (General Electric). Two similar windings on thesame armature with a commutator on each end. Field the same as any ordinary motor (shuntor compound). With switches 1 and 2 closed, the armatures are in series and run at half speed.With switches a…
Electric wiring
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