Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 580
kes it impossible to break the main circuit until the currentin it practically ceases to flow. In each motor circuit there is a four pole, double throw switch. Oneclosed position of this switch connects the motor for 35 poles, the otherclosed position for 24 poles. As the pole changing switches are… … Fig. 0,000.—Arrangement of Westinghouse marine steam turbines with Melville-MacAlpinereduction gear, proposed for U. S. S. Baltimore. The entire equipment is shownas if installed in one of the two engine rooms occupied by the reciprocating engines withwhich this vessel was actually fitted. Since…
Electrical engineering
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