Basler Electric DGC-2020HD - Manual (Page 104)

94 9469300990 Rev B
Figure 45. Mains Breaker Closure Conditions Flow Diagram
Mains Breaker
Close Request
Close Mains Breaker
Is
Mains Breaker
Control
enabled?
Mains Breaker
state
Cannot Close
Mains Breaker
No
Yes
Is Load
bus dead?
Is Mains bus
stable?
Perform sync check
P0071-73
Is Load
bus stable?
No
Is Load Bus
metered?
Generator
breaker state
Yes
Open
Cannot Close
Mains Breaker
Is
Generator Bus
stable?
Are buses
synchronized?
Yes
No
No
Yes
No
Yes
Live Bus Close
Enable Setting
Yes
Enabled
Close Mains Breaker
Closed
Open
Yes
No
Disabled
No
Generator
breaker state
Closed
Open
Closed
Breaker Management DGC-2020HD