Electrical news and engineering . r inthe lateral direction only, which permits free longitudinalmovement of the cab relative to one truck. The locomotives are equipped with Westinghouse airbrakes, the standard of the Chilean Railways. The airbrake, type 14-EL is interlocked with the regenerative brakeso that the latter may be supplemented by service applicationof the train brakes, if desired, without applying the air braketo the locomotive drivers. Current is collected by spring-raised, air-lowered pan-tagraphs, controlled by compressed air and arranged to bemechanically locked in the lowered
Electrical news and engineering . r inthe lateral direction only, which permits free longitudinalmovement of the cab relative to one truck. The locomotives are equipped with Westinghouse airbrakes, the standard of the Chilean Railways. The airbrake, type 14-EL is interlocked with the regenerative brakeso that the latter may be supplemented by service applicationof the train brakes, if desired, without applying the air braketo the locomotive drivers. Current is collected by spring-raised, air-lowered pan-tagraphs, controlled by compressed air and arranged to bemechanically locked in the lowered position. Individual switches mounted in banks establish the maincircuit connections. Each switch is a complete unit in it-self and may be removed without disturbing adjacent switch-es.^ Compressed air controlled by electro-magnetic valvesis used to operate the switches. For certain circuits whereno current is broken and for low voltage, cam switches areused. These also operate by compressed air controlled by THE ELECTRICAL NEWS. General desi^ of Freight Locomotive electro-iiilagiietic valves. The cam group comprises a num-ber of switches mounted on a single shaft, connected througha rack and pinion to a double acting air piston. Each of the locomotive is driven by a \Vestinghou>cNo. 350-D niotor, wound for 1500 volts and insulated tooi^erate two in scries on 3000 volts. The nominal rating ofthis motor on short field is 380 , at loo amperes and 1500volts. Field control is secured by the use of two separatefield windings on the main poles. The motors are geareddirectly to the axles with a ratio of to 1. The gear is ofthe flexible type. A motor-generator set provides low voltage power tocompressors, blowers, control equipment and lights. Thisset has a single frame and two armatures carried by a com-mon shaft. The 3000 volt motor is a bi-polar double-com-mutator machine. The continuous rating of the generator is35 kw. at 92 volts. A master controller is located
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidelectricalnewsen31donm
