Deif Multi-line 2 Designers Reference Handbook page 139

AGC
Flowchart 1, GB handling
START
Start DG(s)
No
RPM > SP1
Yes
Close GB
No
RPM >
SP2
Yes
Delay 1 expired
on all DG(s)
No
Yes
Start
excitation
DEIF A/S
No
Yes
Delay 1
Trip GB
expired
No
Yes
Activate
Delay 2
regulators
expired
No
Delay 3
U
BUS
expired
No
Yes
"Close before
excitation"
failure
END
Designer's Reference Handbook
No
Delay 1
expired
Yes
Start
excitation
Delay 2
expired
Yes
Activate
OK
regulators
Yes
U OK
BUS
Yes
Sync GB
No
No
Delay 3
expired
No
Yes
"Close before
excitation"
failure
Page 139 of 168