Inside Out Library
Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 60
Fig. 80.—Step-by-step potential regulat-ing transformer. By throwing the switchat the bottom, the transformer can be madeto boost or lower the line voltage. See Figs.74 and 75. … Fig. 81.—Step-by-step potential regu-lating transformer for large currents. Theexciter voltage is added or subtractedthrough a series transformer. Se conatcj y~^WAA/V\AAAA/SA O -/■o/^G t^o^s^r* , -^ 0cxcM ^•©*# of ^e^ij^a^o* Bus Sars or- /t/iernareor: Fig. 82.—External connections of a…Electric wiring
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