. Electric railway journal . volts per commuta-tor. Control connections are also provided for operatingfour, six, or twelve motors in series. Additional speedvariation is obtained by tapping the motor fields in allcombinations. Cooling air for each pair of motors issupplied by a small motor-driven blower, an arrangementwhich was adopted to avoid the heavy duct losses en-countered when a single large blower is used. Auxiliary Apparatus Is Well Distributed The 3000-volt contactors and resistors are mounted inthe curved end cab at each end of the locomotive? Inone of these cabs there is also the
. Electric railway journal . volts per commuta-tor. Control connections are also provided for operatingfour, six, or twelve motors in series. Additional speedvariation is obtained by tapping the motor fields in allcombinations. Cooling air for each pair of motors issupplied by a small motor-driven blower, an arrangementwhich was adopted to avoid the heavy duct losses en-countered when a single large blower is used. Auxiliary Apparatus Is Well Distributed The 3000-volt contactors and resistors are mounted inthe curved end cab at each end of the locomotive? Inone of these cabs there is also the 3000-volt direct-currentair compressor and storage battery. In the other is a smallmotor-generator set ancl the high-speed circuit operating cabs contain the master controller, indicat-ing instruments, and a small air compressor (in the No. 2cab) operated from the battery circuit with sufficient capac-ity for raising the pantograph. Near the controllerare the usual air-brake handles for standard trig locomotives for the CASCADE DIVISION OF THE CHICAGO, MILWAUKEE & ST. PAUL RAILWAY 830 Electbic Railway Journal Vol. 54, No. 18
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