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 149
Figs. 2,338 and 2,339.—General Electric instantaneous direct current reverse current or dis-criminating relays. Fig. 2.233. for 500 amperes; fig. 2.339 for 2,000 amperes. Theserelays are designed for mounting directly on circuit breaker studs. These relays consistof a horseshoe magnet with a shunt…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
