International Library of Technology · Scranton, International Textbook Co. · leaf 179
o that the machine can be used either as a dynamo 22 ELECTRIC RAILWAYS. 21 in the regular service or as a booster to raise the voltage ona feeder or group of feeders. In Fig. 12, L is the power-station dynamo; its positiveterminal goes to the positive bus-bar, marked -)- in thefigure. The negative… … Fig. Vt. the load. In the lower right-hand corner of the figure thebooster is shown. F, F^ F^ F are the series coils of thebooster and f^, f^, /^, f^ are the shunt-field coils. Thecircle A in the center is the booster armature. G^ G„ G^is the generator switch. The switch K, with the numberedblocks,…
Electrical engineering
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