1-12. GENERATING EQUIPMENT AND CONTROL DEVICES (cont)
1 MAIN GENERATORS. Furnish dc power to operate the traction motors and also serve as series-wound starting
motors, operating from low battery voltage, to start the diesel engines.
2 ENGINE CRANKING CONTACTORS. Connects the battery to either main generator and its starting field, when
operating the generator as a starting motor.
3 BATTERY CHARGING ALTERNATORS. There are two auxiliary alternators, one mounted on each engine, which
provide current to charge the storage batteries and to operate electrical auxiliaries. The alternators are internally