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 380
Fig. 294. Front and Back View of Mercury-Vapor Arc Rectifier Equipment The rectifier tubes differ in size according to their ampere ratingand in shape according to the direct-current voltage for which theyare designed. The average life of a tube under normal operatingconditions is about 600 hours,…
Electrical engineering
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