. The Street railway journal . PLAN AND SECTIONS OF SWITCHING LOCOMOTIVE ondaries of which are connected by the Scott method tor twophases. There is another like transformer set and wired so itcan be connected in place of either of the others in case oftrouble. All are protected by low-equivalent lightning ar-resters, with reactance coils and fuse switch circuit breakers inthe primary leads. These transformers supply a 450-hp, 390-volt, quarter-phasesynchronous motor, which drives through a flexible shaft coup- ling a 300-kw, 390-volt, three-phase, twenty-five cycle com-pound-wound generator.
. The Street railway journal . PLAN AND SECTIONS OF SWITCHING LOCOMOTIVE ondaries of which are connected by the Scott method tor twophases. There is another like transformer set and wired so itcan be connected in place of either of the others in case oftrouble. All are protected by low-equivalent lightning ar-resters, with reactance coils and fuse switch circuit breakers inthe primary leads. These transformers supply a 450-hp, 390-volt, quarter-phasesynchronous motor, which drives through a flexible shaft coup- ling a 300-kw, 390-volt, three-phase, twenty-five cycle com-pound-wound generator. The starting motor for the set is a 40-hp, two-phase induc-tion motor, connected to the pulley overhanging the outerbearing of the large motor by an endless leather belt, 10 by 5-16 ins. thick, arranged so it can be thrown off afterstarting. This is a liberal starting motor and holds the largerunit steadily at speed so synchronizing is very easy. The CONTROL PANEL (see note) 12311231 153.|5fi7 7U543 2. I I I IB CONNECTIONS FOR CONTROL PANEL To connect transformers for1170 Volts ping in the middle rowof sockets (Shown light on diagram.) Note: See Controller Notches1,2 & 3 Starting only. Notches 4,5,6 & 7 RunningNotches.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
