. Journal of electricity, power, and gas . cars that may be in a train is not limited. While theoperating voltage is 14 volts only, these controllersare submitted to a shop test of 2000 volts alternatingcurrent. Motor Control with cover removed. Fig. switch is hand operated and is designed to. cut out operating circuits of certain unit switches,thereby cutting out either pair of motors should they April 23. 1910] JOURNAL OF ELECTRICITY, POWER AND GAS 383 be disabled. There is an interlock provided whichprevents the switch group from reaching the Multi-ple position except w
. Journal of electricity, power, and gas . cars that may be in a train is not limited. While theoperating voltage is 14 volts only, these controllersare submitted to a shop test of 2000 volts alternatingcurrent. Motor Control with cover removed. Fig. switch is hand operated and is designed to. cut out operating circuits of certain unit switches,thereby cutting out either pair of motors should they April 23. 1910] JOURNAL OF ELECTRICITY, POWER AND GAS 383 be disabled. There is an interlock provided whichprevents the switch group from reaching the Multi-ple position except when all motors are in circuit. Limit Switch. This switch with cover removed shown byFig. 13. The rate at which the resistance is cut out ofcircuit so as to give uniform acceleration current, is < - -A .- 1 Pig. 13. affected by the limit switch. This feature is a valuableone as it gives smooth and economical prevents abuse to equipment due to throwing on ofpower in excess of the predetermined rate. The limit switch consists of a small switchactuated by a solenoid through the coil of which cur-rent of one pair of motors passes. When this currentexceeds a predetermined limit for which the switchis adjusted, its armature is attracted against gravity,opening the switch which is connected in t
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Keywords: ., bookcentury1800, bookdecade1890, bookidjo, booksubjectelectricity
