. Electric railway journal . ed in the Virginia & Rainy Lake LumberCompanys power plant. A three-phase line has beeninstalled between the two switchboards so each stationmay synchronize with the other in case an interruptiondoes occur, and as an extra precaution, the main steamheaders of the two stations are also connected. The generating equipment includes two 750-kw, 600-volt, three-phase, 60-cycle horizontal condensing tur-bines operating at 80 per cent power factor and At the present time one of these units is held asa spare, but the rapid increase in the load anticipatedin the
. Electric railway journal . ed in the Virginia & Rainy Lake LumberCompanys power plant. A three-phase line has beeninstalled between the two switchboards so each stationmay synchronize with the other in case an interruptiondoes occur, and as an extra precaution, the main steamheaders of the two stations are also connected. The generating equipment includes two 750-kw, 600-volt, three-phase, 60-cycle horizontal condensing tur-bines operating at 80 per cent power factor and At the present time one of these units is held asa spare, but the rapid increase in the load anticipatedin the near future, owing to new contracts for light andpower service, will soon require the spare unit to beplaced in regular service. The governors on the turbo-generators are controlled by a motor from the switch-board and each generator panel is also equipped with awattless component indicator. Station excitation is ob-tained from a 35-kw, 125-volt, non-con-densing turbine exciter. In conjunction with this self-. January 10, 1914.] ELECTRIC RAILWAY JOURNAL 71 contained unit, a motor-driven exciter designed to runin parallel has been installed for regular service, theturbine exciter being used only in case the plant is shutdown. The motor-driven exciter set consists of a 75-hp, , 600-volt, three-phase induction motordirect-connected to a 60-kw, 125-volt compound-woundexciter. In the portion of the turbine room used as a substa-tion two 300-kw, 750-volt synchronous motor-generatorsets have been installed. These are General Electrictwo-bearing machines with compound-wound generatorswhich feed the line at 750 volts One of these unitsserves as a spare at the present time. The motor-gen-erator sets are served by three 250-kva water-cooledtransformers. A switchboard gallery is located in one corner of theturbine room and the space under it is utilized for thetransformer equipment. All circuits to the switchboardare arranged so that no switches are on the high-
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