. Operation of trains and station work and telegraphy . ■J Q © S h Hi OO 2 HEATING AND LIGHTING CARS 197 voltage of the generator is less than that of the storagebattery, by virtue of a reduced or zero speed. The auto-matic generator switch opens and closes the circuit be-tween the generator and the storage battery electrically,and is closed directly by the generator FIG. 94. GENERATOR SWITCH IN SINGLE SECTION IRON BOX. Construction.—The generator switch consists of arectangular iron frame, which forms the magnetic circuitof a solenoid and supports the insulated contacts. Withinthe f
. Operation of trains and station work and telegraphy . ■J Q © S h Hi OO 2 HEATING AND LIGHTING CARS 197 voltage of the generator is less than that of the storagebattery, by virtue of a reduced or zero speed. The auto-matic generator switch opens and closes the circuit be-tween the generator and the storage battery electrically,and is closed directly by the generator FIG. 94. GENERATOR SWITCH IN SINGLE SECTION IRON BOX. Construction.—The generator switch consists of arectangular iron frame, which forms the magnetic circuitof a solenoid and supports the insulated contacts. Withinthe frame are two concentric coils, constituting the solen-oid. They are made entirely separate, to facilitate con-struction and repairs, and are held in place by a centraltube. The inside, or lifting coil, is wound with fine wire,and is connected across the terminals of the outside, or releasing coil, is edgewise wound outof copper bar, and connected in series with the generatorand storage battery. Within the central tube, and freeto work in a vertical direction, is a soft iron plunger, at-tached to and insulated from a laminated metal brush. 198 RULES FOR MOVEMENT OF TRAINS Operation.—When the generator develops normallamp voltage the switch will close,-as the fine wire, orlifting coil, raises the plunger and causes the metal brushto make connection betw
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadtrains, booky
