. The Street railway journal . 50-light air-cooled tub trans-formers. Exciting current for the two generators just mentioned comes from the main generator exciters, and each ofthese is also large enough to supply the station current, when the station is closed down, is suppliedby a small steam-driven exciter set. Twelve 1,500,000-circ. mil asbestos-covered cables lead fromthe main generators to a set of 370-volt buses, consisting of 240 STREET RAILWAY JOURNAL. [Vol. XXVI. No. 7. flat copper bars extending nearly the full length of the switch-board ; the switchboard, consistin
. The Street railway journal . 50-light air-cooled tub trans-formers. Exciting current for the two generators just mentioned comes from the main generator exciters, and each ofthese is also large enough to supply the station current, when the station is closed down, is suppliedby a small steam-driven exciter set. Twelve 1,500,000-circ. mil asbestos-covered cables lead fromthe main generators to a set of 370-volt buses, consisting of 240 STREET RAILWAY JOURNAL. [Vol. XXVI. No. 7. flat copper bars extending nearly the full length of the switch-board ; the switchboard, consisting of thirty-two panels, ex-tends across the room at one end of the house. The generatorleads pass through circuit breakers between generators andbuses. Instead of the usual oil switches, these are motor-operated laminated brush carbon circuit breakers. They arelocated back of the switchboard and have small controlswitches on the front of the panel, together with automatictrips and overload releases. From the bus-bar, lines run. —— 1. r 1 ■ fEJ rrm j iU m L-rJ- 1 P : 1 i _i 1 1. Front Elevation
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
