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 378
age battery J. When the bulb starts to rectify there is a highresistance at the surface of the mercury which must be broken downbefore current can pass. This cathode resistance acts like an insulat-ing film over the surface of the mercury, but when a current is oncestarted it will continue to flow,… … Fig. 293. Connections for Mercury-VaporArc Rectifier 337 322 ALTERNATING-CURRENT MACHINERY In order to break down the cathode resistance, on starting therectifier, the bulb is tilted or shaken so that the small starting anodeC, Fig. 293, is brought into contact with the cathode 5 by a…
Electrical engineering
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