Description And Operation; Generator - Ford VSG-411 Service Manual

04-3
Charaina Svstem
04-3
DESCRIPTION AND OPERATION
Generator
The generator charging system is a negative ground
system, and consists of an generator, a regulator, a charge
indicator, a storage battery, and associated wiring.
The present VSG range uses a Prestolite 37-amp or
51 -amp generator. These units have a self-contained
regulator mounted directly to the generator case. The
generator is belt driven from the engine. Current is supplied
from the generator-regulator system to the rotating field of
the generator through two brushes to two slip rings.
The generator produces power in the form of alternating
current. The alternating current is rectified to direct current
by six diodes. The generator regulator automatically
adjusts the generator field current to maintain the generator
output voltage within prescribed limits to correctly charge
the battery.
(TO
OUTPUT
TERMINAL (+)
EXCITATION
RESISTOR PIGTAIL
IGNITION SWITCH)
FIELD TERMINAL
,~ / (INSIDE
REGULAI ' OR COVER)
FIELD TERMINAL