The EMERGENCY genset controller does NOT start the blackout response if:
•
The EMERGENCY genset controller is under switchboard control.
•
Harbour operation is active.
•
The
EDG not ready for blackout
alarm is active.
•
The
Extended stop
timer is running.
•
There is a stop coil failure.
More information
See
EMERGENCY genset controller
,
Emergency genset configurations
for more information.
Parameters
Configure this parameter in
Parameters > Busbar > AC setup > Blackout detection
.
Parameter name Range
Default Comment
Blackout delay
0 s to 1 h 15 s
The time the EMERGENCY genset controller waits before starting the emergency genset
during a blackout.
Configure this parameter in
Parameters > Local power management > Emergency generator > Blackout handling
.
Parameter
name
Range
Default
Comment
Blackout
control
•
Open TB and start
engine
•
Start engine and
open TB
Open TB and
start engine
•
Open TB and start engine
: When a blackout is detected, open the
TB after the
Blackout delay
. Then, when the TB is open, start the
emergency genset engine.
•
Start engine and open TB
: When a blackout is detected, start the
emergency genset engine after the
Blackout delay
. Then, when the
engine is running, open the TB.
Configure this parameter in
Parameters > Busbar > AC setup > Voltage and frequency OK
.
Parameter name
Range
Default Comment
Frequency and voltage OK 0 s to 1 h 5 s
The time the EMERGENCY genset controller waits before closing the tie breaker
after a blackout.
Switchboard control and blackout
An activated
Mode > Switchboard control
digital input on the EMERGENCY genset controller forces the controller under switchboard
control. In this case, the emergency genset will not start automatically during a blackout.
Some system alarms can also force the EMERGENCY genset controller under switchboard control. For example:
Controller not part
of system
and
Different single-line configurations
.
Apart from these, the EMERGENCY genset controller is not forced under switchboard control by the alarms that force the other
controllers under switchboard control, or by the
Power management > Force all controllers in section to SWBD control
input. This
means that the EMERGENCY genset controller is always ready to handle a blackout.
DESIGNER'S HANDBOOK 4189340911K UK
Page 340 of 521
