Figure 2.3. Main Generator.
b. The auxiliary generator produces about 10 kilowatts of electricity
for the power needed to operate control equipment. It also charges the
storage battery and supplies current for the lowvoltage circuits required
for the lighting of the locomotive, operating the fuel pump motor, and
exciting the main field. Once the battery has supplied the power to start
the diesel engine, the auxiliary generator begins to operate. It is either
belt or gear driven from the shaft of the diesel engine or the main
generator, and it is usually mounted on the latter's frame, as shown in
figure 2.3. The auxiliary generators shown in figure 2.1 at the part
numbered 11 and in figure 2.3 are gear driven from the main generator's
shaft.
c. A steam generator is installed on locomotives used for passenger and
ambulance trains to produce steam heat for the cars
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