Description
OFF The auto switch functionality is switched OFF.
Static section The back-up power is recovered within its own static section.
Dynamic section The back-up power is recovered within its own dynamic section.
The application will never try to synchronise/close a BTB to get help in an AMF situation.
All sections The back-up power is recovered within all available sections.
Sections are divided by bus tie breakers. If no BTBs are installed, then the settings static/dy-
namic/all have the same auto switch function.
If dynamic is selected, then please be aware that one mains unit will be requested to carry all
load from the dynamic section without any help from the DGs.
Therefore the remaining mains feeders must be able to carry the load from the entire section.
Run type:
This setting determines how the system in a dynamic section reacts in all the plant modes except island and
AMF.
Description Comment
Run one
mains
Only one mains breaker is al-
lowed to be closed at the
time.
"My ID to Run" (menu 8186) determines which mains feeder
is allowed to operate parallel to the mains.
If other TBs are closed, they will be tripped in order to only
have the TB of "My ID to Run" closed.
If no TB is available in the section, the MB will be tripped
(causing a blackout).
Run all
mains
All mains breakers are al-
lowed to be closed at the
time.
This setting can be handled from M-Logic.
8.4.12 Tie breaker configuration
Some of the possible applications of the AGC with option G5 can be used with a tie breaker, i.e. a breaker
connected between the gensets and the load bus.
8.4.13 Tie breaker open point
If the gensets are running parallel to mains and the mains breaker trips, e.g. due to a mains failure, it can be
necessary to trip the tie breaker as well.
This depends on the total nominal power of the running gensets. If the gensets cannot supply the amount of
load which is adjusted in the "tie breaker open point" menu 8192, then the tie breaker will open. It will close
again when the power capacity setpoint menu 8193 is reached.
This delay time can be used to trip non-essential load groups.
AGC 100 Designer's Reference Handbook
4189340766 UK
Power management (AGC 14x only)
DEIF A/S Page 131 of 152
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