. The Street railway journal . MOTOR-OPERATED ASH CAR and water-cooled single-phase transformers on the first floorof the high-tension structure. These transformers, whichhave delta connections, raise the pressure from 2300 voltsto 33,000 volts. The high-tension leads from the trans-formers, which are No. 4 solid bare wire, are carried upthrough concrete chutes to the motor-operated oil switchesinstalled on the top floor of the high-tension under these switches are the high-tensionbuses, which are carried in a brick bus structure havingconcrete barriers. Two three-phase,
. The Street railway journal . MOTOR-OPERATED ASH CAR and water-cooled single-phase transformers on the first floorof the high-tension structure. These transformers, whichhave delta connections, raise the pressure from 2300 voltsto 33,000 volts. The high-tension leads from the trans-formers, which are No. 4 solid bare wire, are carried upthrough concrete chutes to the motor-operated oil switchesinstalled on the top floor of the high-tension under these switches are the high-tensionbuses, which are carried in a brick bus structure havingconcrete barriers. Two three-phase, high-tension lines ofNo. 4 copper wire leave the station. The lightning ar-. THE MOTOR-OPERATED SWITCHES AND THE BARRIERS FORTHE OUTGOING HIGH-TENSION LINES IN THE THIRDFLOOR OF THE HIGH-TENSION COMPARTMENT resters for these are placed on the walls of the switchchamber. Current for each of the two six-phase, 750-kwrotary converters is supplied from the high-tension bus-bars through motor-operated switches above the buses and 92 STREET RAILWAY JOURNAL. [Vol. XXX. No. 3. through three 250-kw, 33,000 to 400-volt, single-phasetransformers located on the lower floor of the high-ten-sion structure. These transformers have two intermediatetaps for supplying low voltage for starting the single 75-kw, 33,000-volt to 2020-volt, three-phase trans-former connected to the high-tension buses through anoil switch furnishes current to the motor-driven exciter set. The engine room crane motor, stoker motors, wet vacuumpump motor, ash car motors and the station lights aresupplied with direct current at 125 volts from the exciterbus-bars. A Tirrill regulator is empl
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
