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Sensing voltage
Generator voltage
U/F adjust
On the figure 6.2 the control diagram of the WRGA-02 voltage regulator is shown. The
IEEE applied to systems where the rectifier is fed from the generator output (Type ST - Static Excitation Systems), directly or
through PMG or by transformer.
7. IDENTIFICATION LABEL
Model
Model
Power
Power input
Input
Rated Current
Rated
Current
The example above shows the main characteristics to be observed before installation.
NOTES
1.
The identification sticker is located under the regulator.
14
l
Automatic Voltage Regulator – GRT7-TH4-R2
Error signal
+
+ - +
+
-
Generator frequency
Figure 6.2 - Control diagram of WRGA-02.
PMG
PMG Frequency
Opertaion
Frequency
Operation Frequency
Frequency
Figura 7.1 - Identification Label.
PI
Rectifier
0
s KC
1 + s Tf
control is similar to ST1A, shown by
Excitation
Excitation Voltage
Field
Vc máx.
Máx. Vc
Vc máx.
Field voltage