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 1301
needed. Efficiency of Transformers,—The losses in transformersare less than any other piece of electrical machinery or ap-paratus; 98 per cent of the intake being delivered in thelarger sizes as used in railroad sub-stations or power houses,when fully loaded. Unfortunately they lose about the… … Fig. 588interior construction of an air blast transii^rmee
