. The Street railway journal . Valtellina Railway, and canbe operated from either end of the car. The valve is so ar-ranged that the trolley cannot he put on the wire unless thecases of all of the high-tension apparatus are closed. ELECTRICAL EQUIPMENT BETWEEN THE TROLLKY AND PRIMARY SWITCHThe high-tension cut-outs, lightning arresters, choking coilsand fuse box are fitted on the lower side of the roof of themotormans cab. The current from the current collector pass-ing through high-tension leads is first carried to the high-ten-sion main fuse box, on the inner side of the motormans cab. 198 S
. The Street railway journal . Valtellina Railway, and canbe operated from either end of the car. The valve is so ar-ranged that the trolley cannot he put on the wire unless thecases of all of the high-tension apparatus are closed. ELECTRICAL EQUIPMENT BETWEEN THE TROLLKY AND PRIMARY SWITCHThe high-tension cut-outs, lightning arresters, choking coilsand fuse box are fitted on the lower side of the roof of themotormans cab. The current from the current collector pass-ing through high-tension leads is first carried to the high-ten-sion main fuse box, on the inner side of the motormans cab. 198 STREET RAILWAY JOURNAL. [Vol. XXVI. No. 6. There are two such single-pole main fuses on each side of thelocomotives. The boxes are enclosed, and the cut-outs areimbedded in porcelain. After passing the cut-outs the conductors coming from thetwo current collectors are connected together, and connectionsare then branched off to the high-tension lightning arresters,Fig. 18. The latter consists of a series of zinc rollers arranged. FIG. 12.—CURRENT COLLECTING DEVICE in a locked box. The zinc rollers are connected in Y. Thetwo end rollers are connected to the main conductors whichjoin the current collectors. The third end roller is earthed bygraphite resistance, and the whole apparatus is mounted in apiece of porcelain. After passing the lightning arrester, the two main conductorsare carried through one choking coil to the main distributing boxes, each ofwhich has fourbranches, two forthe primary switchand two leading tothe lowering trans-formers, whichsupply the air com-pressor with cur-rent. All high-tensionconductors of thislocomotive areplaced in metaltubes, which arecarefully grounded. PNEUMATIC MAS-TER CONTROLLER Through the two pneumatic master controllers fitted at both sides of the locomotive is operated the entire connectingand regulating apparatus of the motors, viz., the two primaryswitches, the speed controllers and the two water rheostats, in-cluding the short circuit
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
