. The Street railway journal . system is 8 per cent. The insulators are testedto a potential of 40,000 volts. Formost of the distance the trans-mission line is carried alongside of the track, which is on its ownright of way. The Wirt lightning arresters are used. The fre-quency is 25 cycles per second. The transformers are of the G. E. air-blast type of 180 kw efficiency is as follows: With full non-inductive load, 97per cent; with three-fourths inductive load, per cent; withone-half non-inductive load, per cent; with one-fourth non-inductive load, per cent. The trans
. The Street railway journal . system is 8 per cent. The insulators are testedto a potential of 40,000 volts. Formost of the distance the trans-mission line is carried alongside of the track, which is on its ownright of way. The Wirt lightning arresters are used. The fre-quency is 25 cycles per second. The transformers are of the G. E. air-blast type of 180 kw efficiency is as follows: With full non-inductive load, 97per cent; with three-fourths inductive load, per cent; withone-half non-inductive load, per cent; with one-fourth non-inductive load, per cent. The transformers are capable ofcarrying an overload of 25 per cent for one-half hour and 40 percent for several seconds. The rotary converters are of 500 and200 kw each. THE TRACK The third rail is a 45-kg (91 lbs.) T, as shown in Figs. 1 and2, and rolled in 12-m (39-ft.) sections. It is held in an iron clampsupported on a composition insulator, which, in turn, is supportedon a cast-iron chair. The rail-joints are connected by a single. FIG. 3.—LINE INSULATOR fish-plate with a flexible copper bond with Chicago third rail is fed every 100 m (328 ft.) The third rail is car-ried outside the service rail at a distance of about 675 mm (3 ft2y2 ins.). The rails are bonded for the return by the same type olbond as in the third rail. ROLLING STOCK This consists of twenty motor cars, all of the so-called Ameri-can type. The car body has a length of m (59 ft.), a heightof m (13 ft. 8 ins.) and a width over sash rails of m(6 ft. 5 ins.). Each is divided into two first class, two secondclass and two third class compartments, making a total carrying
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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
