Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 155
hen the power isoff, or when the switch K isopened, the solenoid is deen- ergized, and the starting arm falls by gravity to the starting position. 155. Float Switch Control.—With such an automatic starterit is not necessary to run the power mains to the point from whichthe motor has to be started.… … 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
Electrical engineering
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