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 134
eferably govern the time lag? Ans. It should depend on the extent to which the overload isreduced as the time elapses. CURRENT AND PRESSURE LIMITING DEVICES 1,653 Instantaneous Relays.—The so called instantaneous relaysoperate almost instantly on the occurrence of the abnormalcondition that they… … PIVOT CONTACT Fig. 2,307.—Electric circuits of Cor.dit type A relay. The construction is described infiK. 2.309. As here shown, the relay is not in operation, but should the current passingthrough the coil be of sufficient value to cause the lower movable half of the magneticcircuit to approach the…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
