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 207
er which forces the arm out of the switch, thus automaticallyopening the circuit. The device is so constructed that in opening the circuit the arc isbroken on the carbon contacts instead of the copper contacts. electromagnet of the circuit breaker with two coils, one connectedas a shunt across the…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
