. The street railway review . e, but no trouble has been experienced since, howeverheavy the load. The first four miles of each road is feddirect from the generators and the rest from the diagram of the feeders is given in Fig. 2. The boosteris a series wound machine with its negative brush connectedto the positive bus bar, and the positive brush to the feeder;the voltage is thus raised automatically as the load in-creases, to compensate for the drop in the line. Theoret-ically, the rise in the voltage ought to be equal to the dropin the line, but such close regulation is not necessa
. The street railway review . e, but no trouble has been experienced since, howeverheavy the load. The first four miles of each road is feddirect from the generators and the rest from the diagram of the feeders is given in Fig. 2. The boosteris a series wound machine with its negative brush connectedto the positive bus bar, and the positive brush to the feeder;the voltage is thus raised automatically as the load in-creases, to compensate for the drop in the line. Theoret-ically, the rise in the voltage ought to be equal to the dropin the line, but such close regulation is not necessary inrailroad work. The characteristic of the booster at Bowl-ing Green taken in actual service is given in Fig. 3. It isseen that the voltage rises a little faster than theoreticallyrequired for loads under 100 amperes, and a little slowerfor loads above this, due to the fields approaching satura-tion. The booster, used at Bowling Green, Fig. 4, is onemade by the General Electric Company, and is a 45-k. s^^^^n !!Ji B^^r7 ••^*- ^■4 H 1 « *^^ ^ ^lEK ^ Bl i j^-.^ *2^ jJK-i ^ Lfl ii^^ 1B^! % rV ^M^jpi^^ ^^^k B ^BB WL A ^^^^^^SmW m /i ^ f ^ ^^fl^p^^r^. ^^9t^L &[, FIG, 4.—BOOSTER AT BOWLING; GREEN. —TOLEDO i MAUMEE VALLEY BOOSTER. 104 ^1]^%i!lwiai\^ACMr The one used at Toledo on the Toledo & Maumee Val-ley Railway is a 200-k. w. Edison bi-pole railway generator,Fig. 5, rewound for use as a booster. A double-pole,double-throw switch is used in order that the booster maybe cut out, and this line fed direct from the generators andstill have the current pass through the wattmeter. A dia-gram of connections is given in Fig. 6. Both machines areengine driven. On several occasions, due to accidents at of the Valley circuit wire; it is then attached to the BowlingGreen line writh a fibre circuit breaker on the Bowling Greenline. There are two No. 000 figure 8 trolley wires runningthe entire distance of the line, 13 miles. Then we have twoNo. 0000 fee
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
