. Electric railway journal . TRANSMISSION LINE TERMINALSTRUCTURE AT MOUNT ROYALTUNNEL SUBSTATION. TYPICAL OVERHEAD CONSTRUCTION NEAR WESTERN PORTAL OF MOUNT ROYAL TUNNEL, CANADIAN NORTHERN RAILWAY 726 ELECTRIC RAILWAY JOURNAL [Vol. 50, No. 16 beautiful brick building designed to harmonize with theresidence neighborhood of which it will one day form apart. The building is divided longitudinally into twomain sections, the motor-generator room and a group ofsmaller rooms and galleries for the alternating currentbusbars, switches, transformers, etc., used in connec-tion with the motor-generator se
. Electric railway journal . TRANSMISSION LINE TERMINALSTRUCTURE AT MOUNT ROYALTUNNEL SUBSTATION. TYPICAL OVERHEAD CONSTRUCTION NEAR WESTERN PORTAL OF MOUNT ROYAL TUNNEL, CANADIAN NORTHERN RAILWAY 726 ELECTRIC RAILWAY JOURNAL [Vol. 50, No. 16 beautiful brick building designed to harmonize with theresidence neighborhood of which it will one day form apart. The building is divided longitudinally into twomain sections, the motor-generator room and a group ofsmaller rooms and galleries for the alternating currentbusbars, switches, transformers, etc., used in connec-tion with the motor-generator sets, the signals and thedistribution of lighting and alternating-current powerover the system. Energy is purchased from the Montreal Light, Heat& Power Company at 11,000 volts and 60 cycles, threephase. Two synchronous motor-generator sets, rated at1500 kw. each, are used to transform the power to the2400-volt, direct-current form. Each set contains two1200-volt, separately-excited generators connected inseries. A foundation has been provided for a similarfuture set, and the building can r
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