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 124
reak-er breaks the circuitof section A. Thiscauses the arma-ture of section Arelay to open, fol-lowed by that ofsection A repeater. THE TELEGRAPH 2,217 the circuit breaker of the latter also breaking the circuit of sectionA. The operator of section B line cannot now close the circuit,because it is… … 3CCTI0.Il 5 BATTERY SECTION A BATTERY Fig. 3,062.—Diagram of Toye repeater or transmitter system, used extensively in the UnitedStates and Canada. It comprises two relays, two transmitters with tongue contact break-ers, two rheostats and connection as shown. In operation,if section B send or open…
Electrical engineering
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