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- · New York, T. Audel · leaf 127
The relay contacts are of two kinds,circuit opening, as shown above, and circuit closing, as shown in figs. 2,292 to 2,300. Ques. What kind of current is generally used for theauxiliary circuit of a circuit closing relay? Ans. Direct current. 1,646 HAWKINS ELECTRICITY Ques. At what pressure? Ans.… … Figs. 2,292 to 2,300.—General Electric alternating current instantaneous overload circuitclosing relays, covers removed. The function of a circuit closing relay is to close anelectrical circuit, usually direct current, through a trip coil on an oil switch or circuitbreaker, or it may short circuit…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
