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 118
e; Z, buffer; Aa,armature; Ba, laminated connection; Ca, connection; Da, base. CURRENT AND PRESSURE LIMITING DEVICES 1,637 auxiliary circuit under pre-determincd electrical conditions inthe main circuit. The object of a relay is generally to act as a sort of electricalmultiplier, that is to say, it… … NEGATIVE BUS . . PUSHSjjfl BUTTON CIRCUIT OPENINGAUXILIARY 5WITCH £H> TO FEEDER FROM GENERATORFig. 2,276.—Diagram of connections of General Electric shunt trip coil with and withoutcircuit opening auxiliary switch. switches where the small amount of energy derived from an ordinary instrument…
Electrical engineering
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