Deif Multi-line 2 Designers Reference Handbook page 49

AGC
Example 1 (6590 Mains failure voltage
)
Start engine and open MB:
Mains OK
MB On
GB On
Gen start seq
Gen stop seq
Gen running
Gen f/U OK
Mains failure
detected
Example 2 (6590 Mains failure voltage
)
Start engine:
Mains OK
MB On
GB On
Gen start seq
Gen stop seq
Gen running
Gen f/U OK
Mains failure
detected
Conditions for breaker operations
The breaker sequences react depending on the breaker positions and the frequency/voltage
measurements.
DEIF A/S
t
FD
t
FU
t
FD
t
FU
t
FOD
Mains OK
t
GBC
t
FOD
Mains OK
Designer's Reference Handbook
t
MCB
t
MBC
Page 49 of 168