Woodward EGCP-2 - Figure 7-12. Mains Breaker Close Sequence

Manual 26076 EGCP-2 Engine Generator Control Package
Woodward 105
Close Mains
Breaker Flag
Initialize Timers,
Counters
Close Attempts >
Close Attempts
Setpoint?
Generator
CB Aux?
Monitor Bus
PT
Dead
Bus?
Mains
Stable?
Sync
Check?
Breaker
Logic
De-Energize Mains
Breaker Open
Command
De-Energize
Mains Breaker
Close
Energize Mains
Breaker Close
Command
Mains CB
Aux?
Decrement Hold
Timer
Hold Timer
Expired?
Sync
Successful
Start Reclose
Delay
Decrement
Delay
Reclose Delay
Timer Expired?
Increment Close
Attempts
Decrement Hold
Timer
Hold Timer
Expired?
Monitor
Mains
PT
De-Energize Mains
Breaker Close
Energize Mains
Breaker Close
Command
Breaker
Logic?
Synchro OFF,
Reclose Alarm
Parallel Mains Breaker Close Diagram
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Unit in Auto?
YES
YES
NO
NO
YES
Note: To Clear Mains Reclose Failure,
Cycle Run W/ Load Input
from OFF to ON to OFF.
Phase <=
Phase Window
Adjust
Speed
Bias
Voltage <=
Voltage Window?
Adjust Volt
Bias
Voltage Matching
= ENABLED?
In Phase
=> Dwell Time?
Sync Mode =
CHECK?
Sync Mode =
PERMISSIVE?
Sync Mode =
PERMISSIVE?
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
Check Mains
Breaker =
Enabled?
Command
Window for
VIS-104
00-04-26
Figure 7-12. Mains Breaker Close Sequence
(Mains Parallel)