Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1306
cient for the effective radia-tion of the heat unless the case is made abnormally large.Fig. 593 shows a standard transformer of this type. Water-cooled transformers, Fig. 594, are made in sizesfrom 100 K. V. A. up. Water is circulated through a coilof seamless copper tubing immersed in the oil In… … Fig. 593 ALUS-CHALMERS OIL-FILLED SELF-COOLED TRANSFORMER, 60 CYCLE?, 170 K. w., 20,000 TO 2,300 volts transformers, as it permits operation at lower temperatures,and allows more margin for overloads. Air-blast transformers are made in sizes from 75 K. V,A. up. Cooling is effected by placing the…
