Small motors, transformers, electromagnets; a practical presentation of design and construction data for small motors, small low- and high-tension transformers, electromagnets, and induction coils (1920)
Stoller, Hugh Montgomery, Austin, F. E. (Frank Eugene), 1873-, Seeger, Edwin Wilbur, 1892- joint author, American Technical Society · Chicago, American Technical Society · leaf 245
example, if the temperatureof the oil is 18 degrees higher than the surrounding air, then29.68 British thermal heat units are given off from 1 square foot 231 88 DESIGN OF SMALL TRANSFORMERS of oil surface every hour. One British thermal heat unit, orB.t.u., means, the amount of heat necessary to…
Electric motors · Electric transformers · Electromagnets · Induction coils
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