Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1275
■vQ&Qflr^^r L--Qi 5 ^o -<y sQSiSJLQr* ■N.-U § <* * S I ¥|W f &5 -Oi r<y … sSlQSlSlr^So~ T3 4 Fig. 564three styles of d. c. feeder panels 1241 Fig. 565a. c. generator panel lar row any variation in the deflection of the pointers isreadily detected. i The current transformers serve to operate the ammeters^nd the automatic release on oil switches. _^ 1242 Steam Engineering…
