Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 248
Fig. 2,091.-75 light Westinghouse-Cooper Hewitt mercury vapor rectifier constant currentregulating transformer. View showing assembly in case. Buttner Valve.—It is of the Xodon type employing a cathode ofmagnesium-aluminum alloy, and probably iron or lead as anode, withan electrolyte of ammonium… … Fig. 2,092.—75 light Westinghouse-Cooper Hewitt mercury vapor rectifier constant currentregulating transformer with case removed. The transformer is of the repulsion coil type,oil cooled and oil insulated. It is so arranged as to give a constant secondary currentand to insulate the arc lines from…
Electrical engineering
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