. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e three-phasepower is transmitted to the ArsenalBridge transformer station, where twogroups of Scott connected transformersare employed for transforming the sup-ply into two-phase 44,000 volt power. wire, from the source of supply at WestPhiladelphia transformer station. Thetransmission lines are protected by a tyiin. Siemens-Martin galvanized steelground wire carried on top of the trans-mission poles. A safety tying system of special de-sign is used on both the power and
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e three-phasepower is transmitted to the ArsenalBridge transformer station, where twogroups of Scott connected transformersare employed for transforming the sup-ply into two-phase 44,000 volt power. wire, from the source of supply at WestPhiladelphia transformer station. Thetransmission lines are protected by a tyiin. Siemens-Martin galvanized steelground wire carried on top of the trans-mission poles. A safety tying system of special de-sign is used on both the power and lines on poles adjacent tohighway crossings and station platformsin order to insure against burning off andfalling of wires in case of insulator fail-ures. These safety ties consist of Matgalvanized iron plates. 3j ins. wideplaced under and clamped to the trans-mission wire and to yokes on the insu-lators. The plates extend about 18 the insulators. Two insulatorsare used at highway crossings and onsharp curves. Tlie equipment in the West Philadel-phia transformer station originally con-. CATENARY CONSTRUCTION SHOWING SUSPENDED WIRES UXDER LOWOVERHEAD HIGHWAY BRIDGE. Phase balancers are installed in thePhiladelphia Electric Companys powerhouse to correct the unbalancing whichoccurs due to the variation in load re-quirements of the Paoli and ChestnutHill systems. For the Chestnut Hill supply, trans-mission lines are of stranded aluminumsteel reinforced wires, having a conduc-tivity equivalent to No. 00 copper, car-ried on cross-arms on separate trans-mission poles. A signal power line ofstranded aluminum steel reinforced wires,having a conductivity equivalent to No. 0copper, is carried from North Philadel-phia to Chestnut Hill on cross-armsplaced on the transmission poles belowthe power transmission cross-arms. Thesignal power line of insulated copper sisted of two 2,000 leva oil insulatedwater-cooled step-down order to take care of the ChestnutHill Ele
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Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
