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 67
subdivided so that no part)f the winding is at a great distance from air and the iron is pro-vided with ducts. Separate dampers control the amount of airwhich passes between the coils or through the iron. Such trans-formers give good satisfactian for voltages up to 20,000 or higher,and can be built… … .^•, Fig. 16. Water-Cooled Transformer Oil-cooled transformers, Y\g. 15, have their cores and w^indingsplaced in a large tank filled with oil. The oil serves to conduct theheat to the case, and the case is usually made either of corrugatedsheet metal or of cast iron containing deep grooves, so as…
Electrical engineering
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