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 1311
Fig. 596 COBE AND COILS, 500 K. W., 20,000 TO 375 VOLT TRANSFORMERS 1276 Steam Engineering wound with double cotton covered strip copper^ one turnper layer^ with fullerboard insulation^ in addition to thecotton covering, between turns. Exceptions to this con- … FiG. 597struction are made only when the size of the conductor issuch as to render the use of copper strip impracticable, andin such cases the coils are wound with round, double-cotton ( Transformers 1277 covered wire with few turns per layer, so that the voltagebetween the layers is kept within…
