Parameter
Range
Default
Comment
Test delay > Test
time
10 s to 1 h
30 s
The time the test runs from the moment the generator is started.
Test base load >
Base load
10.0 to 100.0 % of
nominal power
50 %
The load the genset will ramp up to during the parallel test.
Test type > Type
•
Engine test
•
Parallel test
•
Load take-over
test
Engine
test
Engine test
: Starts, runs and stops the emegergency genset.
Parallel test
: Starts and runs the emergency genset. The power
management system synchronises and closes the generator breaker. The
emergency genset runs parallel to other power suppliers on the busbar,
then de-loads and opens the generator breaker. The power management
system then stops the emergency genset.
Load take-over test
: Similar to the parallel test, but after the emegency
genset is in parallel to the other power suppliers, the tie breaker is de-
loaded and opened. The power management system synchronises and
closes the tie breaker. Then de-loads and opens the generator breaker
before stopping the emergency genset.
Configure this parameter under
Configure > Parameters > Local power management > Return modes
.
Parameter
Range
Default
Comment
After EDG test > Mode
•
No mode change
•
SEMI mode
•
AUTO mode
AUTO mode
This parameter determines to which power management mode the
controller should return to when the EMERGENCY genset controller
test is finished.
Test function
The EMERGENCY genset controller has three test functions. The availability of the test functions for a stand-alone system depends
whether the controller is able to control the emergency genset governor.
Table 9.6
Test function availability
Test function
Governor control possible
Governor control not possible
Engine test
●
●
Parallel test
●
-
Load take-over test
●
*See note
*Note: If the controller cannot synchronise with the main busbar, then for the load take-over test, the EMERGENCY genset controller
opens the tie breaker, and immediately after that closes the generator breaker.
Emergency genset test and blackout
If there is a blackout during the emergency genset test, then the controller stops the test immediately, and starts the blackout
response.
More information
See
EMERGENCY genset controller
,
Other EMERGENCY genset controller functions
,
Blackout response
(emergency busbar blackout)
for more information.
9.6.2 Engine test
For the engine test, the controller starts the emergency genset, and runs it for the specified time with the genset breaker open.
DESIGNER'S HANDBOOK 4189340911K UK
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