Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 106
Fig. 147.—Compound motor with rheo-stats in both field and armature circuits forspeed regulation. … Fig. 148.—Inter-pole shunt motor. Speed adjusted by resistance in shunt field circuit.Speed can be varied over a large range without sparking and at constant output. 96 WIRING DIAGRAMS OF ELECTRICAL APPARATUS ooo y oo \ i pO ^ Fig. 149.—Multiple voltage speed control. Switch connected to 1 gives…
Electric wiring
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