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 229
rdless of load, making accurate stops at landings an easy matter. 5. To open the circuit to the motor should an overload current flow 6. To apply the dynamic brake in the off position. 7. To operate the elevator at normal speed from the switchboard fc itest purposes. To these seven functions may be…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
