. The street railway review . three generators in this room, two being current generators of 550 volts pressure, which are run in 71. STKLt-T :;.\ .\i REVIEW. I \OL. IX. No. lO. Inndiin Iruiu one engine, one bell running i n top of the other generator is a 6,(X)0-volt 3-phase revolving fieldniachineof 30O-k\v. capacity, and is belted to the second engine. Thi^ isexcited by a 4-pole Ijj-kw. exciter, and the 3-].base circuit is ledto six 50-k\v. air blast transformers, three being at the pow r houseand three at the sub-station on the line of the interurl .n m
. The street railway review . three generators in this room, two being current generators of 550 volts pressure, which are run in 71. STKLt-T :;.\ .\i REVIEW. I \OL. IX. No. lO. Inndiin Iruiu one engine, one bell running i n top of the other generator is a 6,(X)0-volt 3-phase revolving fieldniachineof 30O-k\v. capacity, and is belted to the second engine. Thi^ isexcited by a 4-pole Ijj-kw. exciter, and the 3-].base circuit is ledto six 50-k\v. air blast transformers, three being at the pow r houseand three at the sub-station on the line of the interurl .n miles distant. The plant also contains two 4-polc rotary con-verters, one at the power house and one at the sub-station, eachbeing 150 kw. capacity and of the G. E. type. The power houseswitchboard is located in the front of the building 5 ft. from thewall, is I5j ft. long and made of white marble. It contains thestandard G. E. ct|uipment. The direct current machinery at the CINCINNATI STREET RY. AND THE EM-PLOYES FIG, .^—STRINGING OVEKHE.\ll WIKES. power house ordinarily takes care of the urban portions of theroad and the alternating current the interurban portion. In timesof light load, however, both divisions of the road may be run to-gether on either the direct or alternating machines, and in generalthe two parts of the road are electrically connected so that thegenerator current and the converter current are in parallel. Thetwo divisions may also be kept separate by means of section insu-lators. The sub-station is shown in diagram in Fig. 4. This is locatedon the line of the interurban road towards Ncenah. and besidesthe room for the machinery contains dwelling apartments for theattendant. The converter room contains three static transformers,a 150 kw. rotary converter, a switchboard and a motor and blower
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
