. Electric railway journal . exciters also furnish current for lighting and for theshop motors, and are connected to a storage battery of 120cells and 1050-amp hours high-tension equipment is kept entirely separate from Scheveningen Single-Phase Railway—Overhead Constructionin the Leidschendam Station The main busbars are three in number, of which theoutside ones lead to the separate phases on the trolley cir-cuit, while the center bar is connected to the return circuitof the running rails. Each outgoing circuit is providedwith two oil switches connected in parallel.
. Electric railway journal . exciters also furnish current for lighting and for theshop motors, and are connected to a storage battery of 120cells and 1050-amp hours high-tension equipment is kept entirely separate from Scheveningen Single-Phase Railway—Overhead Constructionin the Leidschendam Station The main busbars are three in number, of which theoutside ones lead to the separate phases on the trolley cir-cuit, while the center bar is connected to the return circuitof the running rails. Each outgoing circuit is providedwith two oil switches connected in parallel. Only oneswitch is used at a time, so that the other is available imme-diately if the first should fail. A small test line, also fur-nished with an oil switch, leads from one of the busbars tothe car shops. The main switchboard, consisting of 11 mar-ble panels with complete equipment, is mounted on an irongallery at one end of the engine room, as shown. Thepanels, which were blank at the time this view was taken, The Hague. Section breaker jopen —Power —Car house. • C — C Separation of phases I to IV.—The four feeder sections,—Feeders of Rotterdam phase. -Feeders of Scheveningen circuits. Scheveningen Single-Phase Railway—Diagram of Overhead Line System the low-tension apparatus. The high-tension chamber isdivided into concrete compartments for the oil switches ofthe generators, motor generator sets and the two outgoinglines, and for the measuring instrument transformers andlightning protection equipment. As shown in one of theaccompanying cuts, an oil-switch cell for a main generatoror outgoing line consists of a steel framework, the lower are for the fourth generating set and the third motor-gen-erator. LINE CONSTRUCTION As has been previously intimated, the trolley circuit isdivided in two parts, each of which is fed by a separatephase from the power house. This division is made nearPynackcr, about miles from Rotter
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