TM 5-6115-400-35
Figure 119. Static exciter and voltage regulator.
transformer (CVT) are used. The load
However, since it is desired to stabilize
current flowing through the P (I) and P (I)
the generator output at rated voltage, a
windings
provide
additional
direct current is applied to the control
components in the CVT. The vector
winding S (C) of the current voltage
addition of the flux due to the P (V)
transformer (CVT), thus increasing the
current and the P (I)-P (I) currents for a
magnetizing current in the primary
given level of control current is S (C),
winding P (V).
This additional
determine the voltage that appears across
magnetizing current increases the voltage
S (V). With a zero power factor load, this
drop across the reactor (XL) producing a
vector
addition
is
approximately
result equivalent to a shift in the shunt
arithmetic, resulting in a large S (V)
field resistance line of a direct current
voltage. For unit power factor loads, the
generator to limit generator output to
vector additions are approximately at right
rated voltage.
angles, resulting in only a slight increase
(5) With the generator under load, all the
windings
of
the
current
voltage
153
