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 88
osed by the action of a plunger solenoid,and opened either by another solenoid called a tripping coil or bygravity. Some examples of remote control are shown in the accom-panying illustrations. SWITCHING DEVICES 1,607 Ques. What indicating devices are used with elec-trically operated switches ?… … AUTOMATIC COHTACT FINGERSCAM ACTUATED OIL SWITCH IN CL0SE.O POSITIONPlG. 2,231.—Diagram of connections of motor operated remote control switch. The motorwhich operates the switch is controlled by a small lever generally mounted on the panelwith the instruments which are in the circuit controlled by…
Electrical engineering
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