Woodward EGCP-2 - Figure 7-8. Generator Breaker Close Sequence

Manual 26076 EGCP-2 Engine Generator Control Package
Woodward 101
Gen Breaker Close Sequence
Single No Mains Parallel Unit
Close Gen Breaker
FLAG = TRUE
Switch PT input to
Bus Sensing
Initialize Timers,
Counters
Dead Bus?
(Bus PT Input < 40VAC)
Dead Bus Closing
ENABLED?
Breaker Logic?
Energize Breaker
Open Command
Energize Breaker
Close Command
Gen CB Aux
Input?
Gen Breaker Hold
Timer Expired?
Increment Close
Attempts
Reset Close
Timer
De-Energize
Breaker Open
Command
De-Energize
Breaker Close
Command
Gen Breaker Hold
Timer Expired?
Sync Successful
Set Mode Flag
= IN SYNC
Close Attempts <
Close Attempts Setpoint?
Energize Breaker
Close Command
Breaker Logic?
Start Reclose
Delay Timer
Set Sync
Reclose Alarm
Sync Timeout
Time Expired?
Set Sync
Reclose Alarm
Force Sync
Mode = OFF
Force Sync
Mode = OFF
YES
YES
YES
Sync Timeout
Time Expired?
Set Sync
Reclose Alarm
Force Sync
Mode = OFF
No
Yes
No
No
No
YES
No
YES
No
YES
No
No
No
YES
YES
No
VIS-100
00-04-25
Figure 7-8. Generator Breaker Close Sequence
(Single No Mains Parallel)