International Library of Technology · Scranton, International Textbook Co. · leaf 320
ried by adjusting the position of the plunger inthe coil, the current for which it is set being indicated bythe scale s, Fig. 29. The switchboard, Fig. 56, is equippedwith a circuit-breaker for each dynamo and each feeder.The board shown in Fig. 58 is equipped with a circuit-breaker for each… … Fig. 29. 24. Fig. 30 (a) and (I?) shows another type of circuit-breaker, which is designed for use on 125- to 250-volt direct-current circuits. One of the principal features of thisbreaker is the style of main contact used. It consists of a §17 ELECTRIC LIGHTING. 29 U-shaped brush a made of a large…
Electrical engineering
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