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 489
so to a small tripping switch, located near each controller, and corresponding tothe usual car circuit breaker. This switch is so arranged that an overload or short in themain circuit will release the handle of the tripping switch, thus opening the auxiliarycircuit and causing the contactor beneath…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
