. Electric railway journal . CONDENSER-TYPE LIGHTNING ARRESTERREADY FOR MOUNTING. CONDENSER-TYPE LIGHT-NING ARRESTER WITHCOVER REMOVED Spork Ga/> railway equipments up to 1500 volts, a condenser of 1mf. capacity is used, while for line mounting the capacity is only mf. In the first form, the resistance in parallel with thecondenser is high, and serves to keep the condenserdischarged so that its fullcapacity may eb alwaysavailable. The sparkgap, which is adjusta- -*»ble, can be set veryclose, thus making the ar-rester extremely can be even short-circuitedwithout causing harm
. Electric railway journal . CONDENSER-TYPE LIGHTNING ARRESTERREADY FOR MOUNTING. CONDENSER-TYPE LIGHT-NING ARRESTER WITHCOVER REMOVED Spork Ga/> railway equipments up to 1500 volts, a condenser of 1mf. capacity is used, while for line mounting the capacity is only mf. In the first form, the resistance in parallel with thecondenser is high, and serves to keep the condenserdischarged so that its fullcapacity may eb alwaysavailable. The sparkgap, which is adjusta- -*»ble, can be set veryclose, thus making the ar-rester extremely can be even short-circuitedwithout causing harm, asthe resistance of the con-denser shunt is high enoughto stand the line voltagewithout wasting any appre-ciable amount of power. Thespark gap provides a meansof noting the dischargeof the arrester by plac-ing a test paper in the gap. In the line arrester without gap or resistance thecondenser is charged up to line voltage, but having nogap is ready to discharge all static formed at any volt-age. A resistance is not necessary in this form ofarrester. Both forms of arrester
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
