International Library of Technology · Scranton, International Textbook Co. · leaf 166
directly to the lower posts of the main switches.The upper posts of the + switches connect directly tothe -\- bus-bar A. The upper posts of the — switches con-nect, through the ammeter shunt B and circuit-breaker C,to the — or rail bus-bar D. Note that the ammeter andcircuit-breaker are not… … § 21 ELECTRIC RAILWAYS. 11 would not be the total current delivered by the machine.Under such circumstances, an ammeter connected in the+ side would not give true indications. Of course, theequalizer will work all right no matter whether the pole itis connected to is + or —, the only condition…
Electrical engineering
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