File:Electric railway review (1906) (14761143375).jpg

Identifier: electricrailwayr18amer (find matches)
Title: Electric railway review
Year: 1906 (1900s)
Authors: American Street and Interurban Railway Association
Subjects: Street-railroads Electric railroads
Publisher: Chicago : Wilson Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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ny part of the transformer thatrepairs may make it necessary to handle. Transformer oil is pumped from a tank in the basementto a tanji suspended from the roof by means of a steam pum;i two trolley feeders, the third breaker, which is situated be-tween the other two, being a spare. The outgoing 11,000-volt feeders run up to the mezzaninefloor, directly over the operating room, where they emergefrom the building through, perforated glass discs, set in IS-inchround tiles. Before emerging there are tapped to them twoWestinghouse low equivalent lightning arresters, set in brickcompartments, and reinforced by two electrolytic lightningarresters of the 11.000-volt type. A set of call bells is pro-vided so that when the automatic breakers open a bell isrung in the inspection shed adjoining. Also, if the tempera-ture of any transformer runs above normal, a bell circuit, con-nected to a thermometer in the top of the transformer tank,is similarly made to operate. The station itself does not re-
Text Appearing After Image:
Electrification of the Rochester Division of the Erie—Overhead Construction at Clarissa Street Bridge, Rochester, Showing Trolley Section Insulator and Bridge Wiring. supplied from the boiler room in the adjacent division round-house, where steam is always available. From the upper tankoil is fed by gravity into either transformer. The water cir-culation is by gravity, the supply coming from the railroadcompanys water tank system. The necessary transformationfrom three-phase to two-phase fits in very well with thenatural subdivision of the electrified line, into two sections,one of which is about 19 miles in length, north of Avon, theother about 15 miles in length, being to the south of Avon.The connections were therefore laid out to operate the sec-tions upon separate phases of the two-phase secondary system.Either the T or V connections can be used, the latter methodbeing employed at present. Each one of the active trans-formers therefore feeds a separate section. The low-tension

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