TM 9-6115-730-24
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REPROGRAMMING OR VERIFYING GSC SETPOINTS - Continued
Table 6. OP5-3 Synchronization Setpoint Programming - Continued.
FACTORY
DESCRIPTION
RANGE OF VALUES
SETPOINTS
DEFAULT
P308 Speed Control Rate: Controls
0.0% to 100.0% in
50.0%
% varies typical
rate of change of the phase angle
increments of 0.1%
17%
difference between the generator and
bus during synchronization. 2 3
P309 Speed Control Damping:
0.0% to 100.0% in
0.0%
% varies typical
Controls rate of change of the phase
increments of 0.1%
8%
angle difference between the generator
and bus during synchronization. 2 3
P310 Dead Bus Closure Enabled:
0 disabled
0
1
Enables or disables automatic closure to
1 enabled
a dead bus.
P311 Dead Bus Limit: Maximum
5% to 50% in increments of
20%
20%
acceptable voltage for bus to be
1%
considered dead as a percentage of
rated voltage.
P312 Dead Bus On Time Delay:
0 to 120 seconds in
0 sec
2 sec
Amount of time GSC waits before closing
increments of 1 second
to a dead bus.
P313 Frequency Match Notification
5 to 1000 seconds in
20 sec
20 sec
Time: Amount of time before notification
increments of 1 second
of possible synchronization failure. Must
not be greater than the Maximum
Synchronization Time.
P314 Maximum Synchronization Time:
5 to 1000 seconds in
20 sec
30 sec
Maximum amount of time to spend
increments of 1 second
attempting to synchronize before setting
Synchronization Timeout Alarm.
1
Setpoints are programmed at the factory to the default value. Setpoints changed to satisfy application
requirements.
2
P305, P306, P307, P308, and P309 ca be adjusted to precisely match individual engine response and
breaker closure characteristics using OP11-Synchronization Setpoint Turning.
3
GSC used P-1-D (proportional-integral-derivation) control to accomplish synchronization quickly and
smoothly. The P, 1, and D parameters are independently controlled by setpoints P307, P308, and P309,
respectively. Adjusting any one of these setpoints will not affect the other two settings.
4
Setpoints to be changed from factory defaults to 200 TQG setpoints at switch gear supplier.
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