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 404
h is being reduced. In suchform of furnace, calcium carbide may be produced, or the reductionof iron oxide may be effected. An arc furnace in which two arcs are maintained is illustrated inFig. 26, where M represents a mass of molten iron covered by alayer of slag S. The current entering one of the… … Fig. 26. Furnace with Two ArcsCopied from The Electric Furnace, by Alfred Stansfiel^ Resistance Furnaces. The resistance type of furnace dependsupon the fact that in passing current through a conductor heat isgenerated, the temperature being higher the greater the amount ofcurrent. Thus heat may be…
Electrical engineering
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