. Electric railway journal . C, M. & ST. P. LOCOMOTIVES—LONGITUDINAL CROSS-SECTIONOF MOTOR these devices are mounted in a separate high-tensioncompartment. The trolley lead, starting from the pan-tograph, first enters this high-tension compartment andis divided into main and auxiliary circuits the main switch and fuse the main power leadgoes directly to the controlling apparatus of the trac- 892 ELECTRIC RAILWAY JOURNAL [Vol. XLVIII, No. 17 tion motors. The auxiliary lead passes to three discon-necting switches from which separate circuits runto the motor-generator set, the air co
. Electric railway journal . C, M. & ST. P. LOCOMOTIVES—LONGITUDINAL CROSS-SECTIONOF MOTOR these devices are mounted in a separate high-tensioncompartment. The trolley lead, starting from the pan-tograph, first enters this high-tension compartment andis divided into main and auxiliary circuits the main switch and fuse the main power leadgoes directly to the controlling apparatus of the trac- 892 ELECTRIC RAILWAY JOURNAL [Vol. XLVIII, No. 17 tion motors. The auxiliary lead passes to three discon-necting switches from which separate circuits runto the motor-generator set, the air compressor and thecab heater. For each lead the switch and fuse aremounted on a cradle that disconnects the fuse when theswitch is open. A 3000-volt aluminum-cell lightning. c. M. & ST. P. LOCOMOTIVES—SIMPLIFIED ARRANGEMENT OFCONNECTIONS FOR ELECTRIC BRAKING arrestor is tapped into the main lead and is mounted onthe back of the high tension compartment. The controlling apparatus which, in general, is ofthe well-known Sprague-General Electric type M, isgrouped in a sheet-iron compartment located near thecenter of the cab. At the bottom of this compartmentare assembled the starting rheostats, which are of thecast-iron grid type and mounted upon 3000-volt insula-tors. The rheostats are separated from the equipmentgroups above them by a horizontal partition, and thebottom of the rheostat compartment is open, ventilationbeing obtained by six chimneys leading up to ventilatorsin the cab. Between the chimneys four control groups are in-stalled, the first of these including the high-voltage dis-
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