(3) You should now review the regulator testing procedures in lesson 4.
6. SUMMARY. In this lesson we studied the purpose, operation, and testing of
regulators. The need for regulators was brought about by the instability of the
generator output voltage.
a. To protect the battery and accessories is the big job of the regulator.
It does it by controlling the generator.
b. The regulator does its controlling by varying the field current of the
generator. This field current is turned ON and OFF at particular rates, thereby
efficiently adjusting the output voltage.
c. The relay type, carbon pile, and action of the solid-state regulators
were discussed. It was found that most every regulator has a line switch relay to
remove the load from the battery.
d. Tests are performed on the line switch relay and the function of
regulation under load conditions.
EXERCISE
Note. - Refer to the exercise directions in lesson 1.
71.
The purpose of a regulator is to limit the
a.
generator revolutions.
b.
battery current.
c.
generator voltage.
72.
The best way to control the generator voltage is with a variable
a.
load resistance.
b.
field resistance.
c.
stator winding.
73.
If you were controlling a generator manually, what should be done if the
generator speed increases?
a.
Increase the load resistance
b.
Decrease the field current
c.
Increase the field current
74.
The principle used to regulate is by a
a.
switching ON and OFF action.
b.
variable regulated voltage.
c.
variable regulated load.
75.
The first type of regulator incorporated a voltage sensitive
a.
relay.
b.
carbon pile.
c.
semiconductor.
76.
The reverse current relay in a regulator disconnects the
a.
stator winding.
b.
battery circuit.
c.
field winding.
OS 010, 5-P11
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