Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 506
asraised, is pulled down, thus forcing the roller H up past the rollerG, which compresses the brush F and the coil C, by forcing thearm back into its initial position. [ These breakers are also made with under-load, no-voltage,and shunt-trip attachments, and may be operated from any distantpoint if… … Fig. 380. General View of Roller-SmithSingle-Pole Breaker—Open 457 440 ALTERNATING-CURRENT MACHINERY the link fuses. Thus some of the older switches were designed tobreak the circuit between the end of a movable copper rod and a sta-tionary copper socket, both of which are surrounded by a…
Electrical engineering
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