. The street railway review . o the alternators and the latter equally as conductors lor tin- return circuit cross bonds have beenplaced 60 m. apart, these bonds bein;; of copper wire 8 mm. diameler, boiled to the rail. Each car is equipped with two triphase motors which (levelo|ifrom 20 to 25 h. p. at 400 r. p. ni. with a current of 500 volts and40 periods per second. The diameter of the bore of the 12 polesis mm. and that of the rotor 450 mm., giving an air gap of 360 STREET RAILWAY RE\ lEW. [Vol. XIV. No. 6. mm. The voltagr of llic stator is 500 and that of the roior novolts. The
. The street railway review . o the alternators and the latter equally as conductors lor tin- return circuit cross bonds have beenplaced 60 m. apart, these bonds bein;; of copper wire 8 mm. diameler, boiled to the rail. Each car is equipped with two triphase motors which (levelo|ifrom 20 to 25 h. p. at 400 r. p. ni. with a current of 500 volts and40 periods per second. The diameter of the bore of the 12 polesis mm. and that of the rotor 450 mm., giving an air gap of 360 STREET RAILWAY RE\ lEW. [Vol. XIV. No. 6. mm. The voltagr of llic stator is 500 and that of the roior novolts. The total weight of each motor is 830 kg. The motors arcconstructed in such a manner that the motor cars can mount themaximum grades at normal voltage without any increase in thevoltage of the current, while carrying a full complement of passen-gers. Tests were made on a car which made a rim of alR>.it J-J full to determine the rise in temperature ofthe motors. The temperature at the interior of one motor was. I .\K Ki;SlST.\N(lJ. 4(< and of the other 49°, the temperature of the atmosphere lieiiiK22°. The diameter of the wheels is 800 mm. For lighting each car is provided with a transformer which re-duces the tension of the soo-volt current to 100 volts. The lampsare in parallel. The starting resistances are placed under the carand are operated from the controller by means of a chain are two controllers on each car which resemble in exteriorappearance those of continuous current equipments. Fuses are T m
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
