Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 156
Fig Automatic solenoid starter. Art. 156] AUTOMATIC STARTERS AND CONTROLLERS 131 When the switch s is closed, the magnetic switch K is excitedand closes the main circuit so that power is available at the motor … Fig. 155.—Automatic solenoid starter with main magnetic switch. terminals. The switch s may readily be opened and closed bymeans of a float, a pressure gauge or some other device, so as tomaintain the water level orthe air pressure in a tankwithin prescribed limits. When the float F in Fig.…
Electrical engineering
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