Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 88
Fig. 120.—Connections for a non-reversible automatic booster system. The series field,S, opposes the generator, e.m.f. lamps are connected across the generator, where the e.m.f.remains constant, while the motors are connected across the battery, where the e.m.f. dropsas the load comes on. … Fig. 121.—Connections for a reversible-automatic booster system. The series field, S, opposes the generator e.m.f. 78 WIRIN<i: DIAGRAMS OF ELECTRICAL APPARATUS
Electric wiring
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