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 68
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 to increasethe radiating surface. These transformers do not require such heavy 54 POWER STATIONS 45 insulation on the outside of the coils as air-blast… … :#^. Fig. 17. 400-Kw. Water-Cooled Oil Transfoimer Water-cooled transformers, Figs. 16 and 17, are used when highvoltages are required. This type is like an oil-cooled transformer, butwith water tubes arranged in coils in the top. Cold water passesthrough these tubes and aids in removing heat from…
Electrical engineering
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