generator voltage and has controls to adjust
stability, voltage, and voltage range. The
motor-operated potentiometers are used to
adjust voltage and speed settings.
(5) External Power Box Assembly. The external
power box assembly provides a means of
accepting a supply of power from a single
phase 120/240V AC, 50/60 Hz external
source to energize its circuits when internal
power is not available. The battery charger
and convenience receptacle circuits
automatically transfer from internal power to
external power when internal power is not
available and the circuit breaker is closed.
Figure 1-3. Generator Set, Rear