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 231
General Type of Oil Switch with Cover RemovedCourtesy of General Electric Company Oil switches are not suitable for use on direct-current circuits,since there is no reversal of current and the arc is much harder toextinguish than the a. c. arc. Circuit Breakers. Where large currents are to be…
Electrical engineering
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