. Electrical world. machine and the series arc regulator circuit, thusinsuring perfect separation of its circuit from any others suppliedfrom the same machine. Transformers for this use are furnished ofone-to-one ratio, or if higher voltages are required with the properratio to obtain the desired voltage for the arc circuit. It is frequently necessary in installing arc lighting systems to con- ELECTRICAL WORLD and ENGINEER. Vol. XLIII, No. 23. sider extensions of the system to meet the growth of the Fort Wayne series alternating system is designed to take careof extensions and at
. Electrical world. machine and the series arc regulator circuit, thusinsuring perfect separation of its circuit from any others suppliedfrom the same machine. Transformers for this use are furnished ofone-to-one ratio, or if higher voltages are required with the properratio to obtain the desired voltage for the arc circuit. It is frequently necessary in installing arc lighting systems to con- ELECTRICAL WORLD and ENGINEER. Vol. XLIII, No. 23. sider extensions of the system to meet the growth of the Fort Wayne series alternating system is designed to take careof extensions and at the same time to operate efficiently with theinitial load. This is done by installing a regulator large enough tomeet the maximum future demands and a transformer furnishingproper voltage to economically operate the regulator with this partialinitial load. This lower voltage is obtained from a series of sec-ondary taps, by means of which the arc circuit voltage may be varied Interchangeable Enamel Resistance FIG. 2.— from so per cent, of full voltage up to maximum secondary voltagein steps of such value that the circuit will always be working atapproximately full load efficiency. This method of transformationwill allow a lighting plant to practically double its series arc lightingoutput without any increase in the regulating system or trans-former, simply by changing the connections on the secondary tapsof the transformer; and at all times it insures the highest economyand maximum power factor in the regulator circuit. Figs. I and 2 show the Wood regulator mounted on a stand forstation installation. The knife edges are mounted on a casting sup-ported on two A-frames, between which the regulator is joints in the levers furnish means for adjusting the regulator forthe proper current. Gas Power Plant Extension. A gas engine power plant which has attracted considerable noticewithin the last few years is that of the Union Switch & SignalCompany, Sw
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
