Test
activated
Engine start
sequence
Close generator
breaker
Ramp up to
power set point
Open generator
breaker
Genset stop
sequence
Controller to
mode after test
GB closed
No
Yes
GB opened
No
Yes
Stop
sequence
OK
No
Yes
Start
sequence
OK
No
Yes
Test
timer
expired
No
Yes
Alarm
Test timer
starts
Alarm
Alarm
Alarm
G
Emergency
load
1. The controller starts the emergency
genset when the TEST function is
activated.
2. The controller synchronises and
closes the genset breaker.
3. The controller regulates the
emergency genset to supply the load
defined in the
Test base load
parameter.
4. The test timer starts.
5. After the test timer runs out, the
controller de-loads and opens the
emergency genset breaker.
6. The emergency genset cools down
and then stops.
7. The EMERGENCY genset controller
changes to the mode specified in the
After EDG test
parameter.
9.6.4 Load take-over test
For the load take-over test, the controller starts the emergency genset, and closes the genset breaker. The controller then opens the
tie breaker and runs the genset for the specified time. At the end of the test, the controller closes the tie breaker, opens the
generator breaker and stops the emergency genset.
DESIGNER'S HANDBOOK 4189340911K UK
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