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