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 1304
Fig. 595 PARTLY ASSEMBLED 25 CYCLE, 500 K. W., 20,000 TO 375 VOLTTRANSFORMER Transformers 1275 … Fig. 596 GORE AND COILS, 500 K. W.. 20,000 TO 875 VOLT TRANSFORMERS 1276 Steam Engineering woTind with double cotton covered strip copper^ one turnper layer^ with fuUerboard insulation^ in addition to thecotton covering, between turns. Exceptions to this con-
