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 1267
Fig. 557constbuctiok of fig. 547 fob large capacity Switch Boards 1233 shown in Fig. 561, while Fig. 562 has an instrument andswitch for each circuit. . Fig. 563 gives the diagram of these feeder panels andFig. 564 gives the electrical connections. Boc/1 i//^M Crounaecf J Circuit SrQoMQr/…
