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 1296
Fig. 589 SET OF COILS MADE UP READY TO BE PLACED IN TRANSFOBMEB Transformers 1267 now equivalent to 4 K. W. on a 100 K. W.) its efHciencyis 484-50=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…
