The test shall be performed according to the settings for the station. Test the
alternatives below that are applicable.
Testing the dead line live bus (DLLB)
The test should verify that the energizing check function operates for a low voltage on
the U-Line and for a high voltage on the U-Bus. This corresponds to the energizing of
a dead line to a live bus.
1.
Apply a single-phase voltage 100%
GblBaseSelBus
to the U-Bus, and a single-
phase voltage 30%
GblBaseSelLine
to the U-Line.
2.
Check that the AUTOENOK and MANENOK outputs are activated after set
tAutoEnerg
respectively
tManEnerg
.
3.
Increase the U-Line to 60%
GblBaseSelLine
and U-Bus to be equal to 100%
GblBaseSelBus
. The outputs should not be activated.
4.
The test can be repeated with different values on the U-Bus and the U-Line.
Testing the dead bus live line (DBLL)
The test should verify that the energizing check function operates for a low voltage on
the U-Bus and for a high voltage on the U-Line. This corresponds to an energizing of
a dead bus to a live line.
1.
Verify the settings
AutoEnerg
or
ManEnerg
to be
DBLL
.
2.
Apply a single-phase voltage of 30%
GblBaseSelBus
to the U-Bus and a single-
phase voltage of 100%
GblBaseSelLine
to the U-Line.
3.
Check that the AUTOENOK and MANENOK outputs are activated after set
tAutoEnerg
respectively
tManEnerg
.
4.
Decrease the U-Line to 60%
GblBaseSelLine
and keep the U-Bus equal to 30%
GblBaseSelBus
. The outputs should not be activated.
5.
The test can be repeated with different values on the U-Bus and the U-Line.
Testing both directions (DLLB or DBLL)
1.
Verify the local HMI settings
AutoEnerg
or
ManEnerg
to be
Both
.
2.
Apply a single-phase voltage of 30%
GblBaseSelLine
to the U-Line and a single-
phase voltage of 100%
GblBaseSelBus
to the U-Bus.
3.
Check that the AUTOENOK and MANENOK outputs are activated after set
tAutoEnerg
respectively
tManEnerg
.
4.
Change the connection so that the U-Line is equal to100%
GblBaseSelLine
and
the U-Bus is equal to 30%
GblBaseSelBus
. The outputs should still be activated.
5.
The test can be repeated with different values on the U-Bus and the U-Line.
Testing the dead bus dead line (DBDL)
The test should verify that the energizing check function operates for a low voltage on
both the U-Bus and the U-Line, that is, closing of the breaker in a non-energized
system. Test is valid only when this function is used.
1MRK 502 049-UEN A
Section 6
Testing functionality
105
Commissioning manual
