Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1302
Fig. 5S8 INTERIOR CONSTRUCTION OF AN AIR BLAST TRANSFORMER 11 ,s 1 • ? Fig. 589set of coils made up ready to be placed in transformer Transformers 1267 now equivalent to 4 K. W. on a 100 K. W.) its efficiencyis 48-7-50=0.96. … Fig. 590air blast transformer At quarter load it takes in 25 K. W., loses 2 K. W., soits efficiency is 23-^25=0.92. By clever designing transformers are built to be mostefficient at three-quarters load. They are a little less effi- ^ 1268 Steam Engineering cient at half, and full loads, and still…
