. Electric railway review . t is used on the smallertypes of motors and is capable of carrying 80 amperes. For the larger motors larger contacts are required; this require-ment is met by furnishing renewable contacts, as shown inone of the illustrations of the 160-ampere rheostat. In thislarger type of starter a special short-circuiting brush is pro-vided which cuts out the last contact, insuring the lowestresistance possible. For starting motors on 110 volts of 25 horsepower or 220volts 45 horsepower and larger, the grid type of resistanceis used, which is fully ventilated and will stand the
. Electric railway review . t is used on the smallertypes of motors and is capable of carrying 80 amperes. For the larger motors larger contacts are required; this require-ment is met by furnishing renewable contacts, as shown inone of the illustrations of the 160-ampere rheostat. In thislarger type of starter a special short-circuiting brush is pro-vided which cuts out the last contact, insuring the lowestresistance possible. For starting motors on 110 volts of 25 horsepower or 220volts 45 horsepower and larger, the grid type of resistanceis used, which is fully ventilated and will stand the heavyduty required in starting large motors. All contacts, brushes,fingers and springs may be removed from the front with ease. The line of rheostats is described in Leaflet No. 9000, withfull information as to dimensions, carrying capacities, etc. Thisline of starters is adapted for 110, 220 and 500 volt motors. As these rheostats are used only in starting the handlewill not remain on any point except the last unless Direct-Current Starting Rheostats—Grid Type Starter with240-Ampere Face Plate. They are intended to bring the motor up to speed in 15 to 30seconds according to size, and are made for full load condi-tions. ELECTRIFICATION IN MEXICO. Com pan ia Minera Las Dos Estrellas is the first in therepublic of Mexico to electrify a steam railroad, by doingwhich its locomotive equipment is increased to seveti locomo-tives. In view of the considerable saving made in the lasttwo years in operating this property by electricity in placeof steam, orders have been placed for machinery for elec-trically equipping a part of the present steam road operatingbetween the companys mines and El Oro. To supply currentfor this work the Westinghouse Electric & ManufacturingCompany is now building a 450-horsepower motor generatorset, which will be located centrally with regard to the partof the road to be electrified. This set will take its powerfrom the circuits of the Mexican Light &
Size: 1992px × 1254px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreetr, bookyear1906
