Description Genset Mains
Bus tie
breaker
Group tie
breaker
Plant Notes
Inh. request for section ● ● ● ●
Prevent the section from helping other
sections.
Inh. BTB deload ●
Inh. AOP1 buttons ● ● ● ● ●
All command buttons on AOP1 are
ignored.
Inh. AOP2_[1-5] buttons ● ● ● ● ●
All command buttons on AOP2/[1-5] are
ignored.
Activate CBE ● ●
Activates the Close Before Excitation
function.
Deactivate CBE ● ●
Deactivates the Close Before Excitation
function.
Inh. regulation ● ● Ignore regulation.
Exclude from Run all
sequences
●
Include in Run all sequences ●
Inh. start button ● ● ● ● Ignore the start button.
Inh. stop button ● ● ● ● Ignore the stop button.
Inh. GB button ● Ignore the generator breaker button.
Inh. MB button ● ● ● Ignore the mains breaker button.
Inh. BTB button ●
Inh. TB button ●
Inh. GG BTB close request ●
Inh. request for GG section ●
Inh. engine start ● Engine start is not allowed.
Inh. GB black close ●
Genset is not allowed to close to a
black busbar.
5.9 BTB Cmd
Output, BTB Cmd
Description
Notes
BTB [33-40] open feedback The power management system must regard the BTB as open.
BTB [33-40] closed feedback The power management system must regard the BTB as closed.
BTB [33-40] open cmd The power management system must command the BTB to open.
BTB [33-40] close cmd The power management system must command the BTB to close.
5.10 Fast TB action and CBE
These commands are only available for group tie breaker controllers.
Application note 4189341276B EN Page 47 of 50
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