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 157
the voltage and currents in a. c. circuits.Direct currents do not change in amount and direction and, there-fore, transformers cannot be used at all on direct current. Figs. 13 and 14 show the interior and exterior views of a smalltransformer of a type used for incandescent lighting. The case… … Fig. 14. Exterior View of IncandescentLighting Transformer 137 16 UNDERWRITERS REQUIREMENTS Alternating-current dynamos and transformers are constructedand connected in several ways which differ in regard to the numberof partially independent circuits which they supply. An a. c. circuitin which…
Electrical engineering
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