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 478
an a predetermined value. Thus, the motor starts with a proper current and as soon as the cur-rent has decreased to a specified value, the connections are automaticallychanged so that the rate of acceleration and the current are kept prac-tically uniform throughout the period of control. Ques.… … /amsi/tm/G/? ffemomb/eT/p toSegmer?£ Fig. 3,552.—Detail of General Electric type K magnetic blow out showing pole piece, seg-ment and removable tip. The principal object of multi-unit control is in service requiring thatcars be operated singly or several coupled together in a train and oper-ated…
Electrical engineering
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