Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1300
^ carried off.Wherever water is available and not expensive this methodis preferable to air coolings even for comparatively small … 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…
