Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. . re located smallauxiliary contacts in the controlcircuit. These are operated bythe motion of the contactor, asshown diagrammatically in This figure corresponds tothe interlocks on contactor auxiliary contact switchconsists of the stationary terminals and a movable stem attac
Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. . re located smallauxiliary contacts in the controlcircuit. These are operated bythe motion of the contactor, asshown diagrammatically in This figure corresponds tothe interlocks on contactor auxiliary contact switchconsists of the stationary terminals and a movable stem attachedat one end to the contactor lever. The stem carries one or moreinsulated copper contact disks. In Fig. 62 the contactor is shownopen and auxiliary circuit 1 closed. When the contactor closesby means of the current sent through its operating coil, auxiliarycircuit 1 is opened and 2 is closed. In this manner any numberof auxiliary circuits can be controlled. Control=Circuit Cut=Out Switch. The control-circuit cut-ouvswitch Is a simple cylindrical switch with a row of segments andcontact fingers. The rotation of this cylinder opens and closes all ofthe control circuits at one time. Main Circuit Breaker. The main circuit breaker is a modi-fication of the type used on station switchboards. In the latter. Fig. 62. HINea POINT OF ARM Diagram of Sprafrue-GeneralElectric Interlock 155 60 ELECTRIC RAILWAYS there is a switch opened by a spring, the contacts being located in ablow-out field. The switch is held closed by a trigger which is trippedby a solenoid carrying all or part of the line current. The circuitbreaker may be closed by hand. In the car circuit breaker showndiagrammatically in Fig. 58, the setting of the switch is done bymeans of a solenoid, represented vertically. The breaker may betripped either by the heavy-wire horizontal coil in the main circuit, orby the fine-wire horizontal coil in the control circuit. The left-handheavy-wire horizontal coil furnishes the magnetic
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Keywords: ., bookauthoramericantechnicalsoci, bookcentury1900, bookdecade1910
