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 152
th which they are used. I: is desirable to disconnect a large victor in case of voltagefailure, and with conditions requiring either a motor operated. CURRENT AND PRESSURE LIMITING DEVICES 1,671 or a solenoid operated circuit breaker, a low voltage relay isused to close the tripping circuit… … Fig. 2,342.—Condit time limit relay, designed primarily for use in connection with feedercircuits, where close selection or discrimination of circuit breakers is not required. It maybe used satisfactorily on lighting and power circuits and also where there are sudden, mo-mentary fluctuations of…
Electrical engineering
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