. Journal of electricity. however, the compound winding of the voltmeterwill correctly reproduce in miniature the resistance drop asexisting in the feeder, but not the reactive drop. Conse-quently, to obtain correct compensation for the latter condi-tion of operation, which is being adopted more generally bycentral stations, it is necessary to use in conjunction with a one to one insulating transformer, the latter design permit-ting the grounding of both current and potential transformercircuits. It can be connected in circuit with any contactmaking voltmeter of General Electric manufacture wi
. Journal of electricity. however, the compound winding of the voltmeterwill correctly reproduce in miniature the resistance drop asexisting in the feeder, but not the reactive drop. Conse-quently, to obtain correct compensation for the latter condi-tion of operation, which is being adopted more generally bycentral stations, it is necessary to use in conjunction with a one to one insulating transformer, the latter design permit-ting the grounding of both current and potential transformercircuits. It can be connected in circuit with any contactmaking voltmeter of General Electric manufacture withoutany change in the meter regardless of the type or design, andonce properly adjusted for the line will cause the regulatorto maintain correct voltage within its limits of range andcapacity. The units of the compensator are assembled in a neat,compact case suitable for mounting on the switchboard ifdesired. It is easily adjusted, and after correct conditionsare obtained for a given feeder requires no further A new line drop compensator the contact making voltmeter a device which will reproducein miniature* on the voltmeter the resistance and reactancedrop as found in the line under varying condition of load andpower factor. The General Electric Company has recently developeda new line drop compensator. This compensator when usedin connection with any contact making voltmeter will enablethe regulator to provide correct voltage compensation to anygiven point on the feeder regardless of the load or the powerfactor. The compensator consists of a resistance and a re-actance, each independently adjustable by means of dialswitches, whereby the resistance and the reactance of theline may be reproduced in miniature and the effect of the loadon the line reproduced in the feeder regulator control, i. e., inthe contact making voltmeter. The compensator can be furnished either with or without V. V. SAFETY SWITCHES Among the recent safety devices of interest are the 4types of
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Keywords: ., bookcentury1900, bookdecade1910, bookidjo, booksubjectelectricity
