. Electric railway journal . ectric Light Com-panys system some 10 miles away through a 10,000-volttransmission, overhead to the Laurel Street substation,Hartford, and underground in cable to the Dutch Pointstation. PLANTS AT DUTCH POINT AND ELSEWHERE The Hartford Electric Light Company also has a com-pound system. The main plant at Dutch Point has 7500 kwcapacity in Westinghouse-Parsons turbo-alternators, gen-erating two-phase, sixty-cycle current at 2300 volts. TheHartford-New Britain line is fed from this station by trans-formers, which not only step up the lower voltage but alsochange the
. Electric railway journal . ectric Light Com-panys system some 10 miles away through a 10,000-volttransmission, overhead to the Laurel Street substation,Hartford, and underground in cable to the Dutch Pointstation. PLANTS AT DUTCH POINT AND ELSEWHERE The Hartford Electric Light Company also has a com-pound system. The main plant at Dutch Point has 7500 kwcapacity in Westinghouse-Parsons turbo-alternators, gen-erating two-phase, sixty-cycle current at 2300 volts. TheHartford-New Britain line is fed from this station by trans-formers, which not only step up the lower voltage but alsochange the two-phase current to three-phase current, orthe reverse if New Britain is feeding Hartford. The main power circuits and two other transmission linesare also taken off the Dutch Point busbars. The lightingservice, however, is from the Pearl Street substation, towhich go not only the 2300-volt feeders from Dutch Pointbut the two 10,000-volt transmission lines from the Farm-ington River hydroelectric plants, one at Rainbow, gY2. Connecticut Power—Transmission and Distribution BetweenBulls Bridge and Waterbury miles away, containing two 600-kw turbine-driven unitsoperated under a head of 35 ft., the other at Tariffville, 10miles away, with two 750-kw units operated under a The transmission line from this latter plant, ofstranded aluminum ^ in. in diameter, is interesting becauseof its white porcelain insulators, a color very commonlyused abroad but hardly ever in this country. SCHEME OF DISTRIBUTION Briefly, then, this district is fed by five primary stationsof an aggregate rated capacity of 26,200 kw. Within thelimits of the transformers at each point current can be takenfrom the other plants, while duplication and interconnectionof apparatus and lines permit the isolation of a broken-down unit with the least possible interference with genera!operation. The substations change the current transmitted to theminto the various forms for direct use, Waterbury exhibitingto
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