beautypg.com

Figure 44 – Basler Electric DGC-2020HD User Manual

Page 102

background image

92

9469300990 Rev B

Figure 44. Generator Breaker Closure Conditions Flow Diagram (without Optional Load Bus Metering)

Generator Breaker

Close Request

Close Generator

Breaker

Is Generator

Breaker Control

enabled?

Generator

Breaker

state

Cannot Close

Generator Breaker

No

Yes

Is

Generator Bus

stable?

Synchronize buses

P0071-77

No

Is Mains

bus stable?

No

Mains breaker

state

Yes

Yes

Open

Closed

Is Mains

bus dead?

Is

Generator Bus

stable?

Is

Generator Bus

dead?

Dead Gen Close

Enable setting

Dead Bus Close

Enable setting

Open

No

Yes

Yes

Enabled

Yes

Enabled

Cannot Close

Generator Breaker

No

Disabled

No

Disabled

Close Generator

Breaker

Closed

Breaker Management

DGC-2020HD