. Journal of electricity, power, and gas . of the same make. Theswitchboards were assembled and the mountings madeby the Northern Electric engineers in accordance withtheir own ideas. Connection between the switchboard and trackare made with 1,000,000 cir. mil copper cable. The first station is, as before mentioned, at thecar house at Mulberry. There are no transformers,as current is supplied from the sub-station of thepower company in close proximity. There are twomotor-generator sets, so that the total output is 800kilowatts. Number 2 is miles from Mulberry. It rep-resents one of the typ
. Journal of electricity, power, and gas . of the same make. Theswitchboards were assembled and the mountings madeby the Northern Electric engineers in accordance withtheir own ideas. Connection between the switchboard and trackare made with 1,000,000 cir. mil copper cable. The first station is, as before mentioned, at thecar house at Mulberry. There are no transformers,as current is supplied from the sub-station of thepower company in close proximity. There are twomotor-generator sets, so that the total output is 800kilowatts. Number 2 is miles from Mulberry. It rep-resents one of the types of sub-station buildingsadopted by the company. The building is almostsquare; it has a concrete foundation under the walls,transformers and machines. Provision is made torapidly drain the transformers of their oil, should aburn-out occur and in carrying out this idea a systemof ducts has been incorporated so as to cause a naturaldraught of air, drawn from beneath the building andnext to the ground, where it will be coolest, to pass up. A Sub-Stations Switchboard. and around the transformer cases and out throughspecial transformer cell ventilators. The switchboard is mounted well away from thewall and behind it is an elongated pit through whichall cables are carried; this is covered with a gratedwood floor. The oil-switch for the induction motor is April 23, 1910] JOURNAL OF ELECTRICITY, POWER AND GAS 3S7 of the remote control, niaiuially operated type and iscontained in a fire-proof enclosure, outside of thebuilding. The framework of the building is of wood, but it iscovered with wire lath which is also used for the panelwalls. Two coats of cement plaster both inside andout cover the lath, making a thoroughly serviceableand practically fire-proof building. At No. 2 station there is but one motor-generatorset. There are three, 150 kw. transformers.
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Keywords: ., bookcentury1800, bookdecade1890, bookidjo, booksubjectelectricity
