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 59
in the diagram, Fig. 20, will not beactuated by current from the home battery because it is connectedto points having equal potentials. When current comes over theline from the distant station, however, a major portion of it will takethe most direct path to ground through the relay, which…
Electrical engineering
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