International Library of Technology · Scranton, International Textbook Co. · leaf 451
withmuch more reliability than a fuse.Circuit-breakers used on carsare generally arranged so that thearc formed at the break takesplace in a magnetic field and isthus blown out in the same wayas in a controller. Fig. 24 showsa car circuit-breaker. In generalappearance it is much like a hood switch;… … Fig. 24. 25 ELECTRIC RAILWAYS. 19 A and K which the arc is extinguished. The nut d is used to adjustthe current at which the breaker trips, by varying the ten-sion on a spring against which the armature has to pull, 31. Fig. 25 shows another circuit-breaker of largercapacity. This type is also used…
Electrical engineering
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