ABB REL670 Installation And Commissioning Manual page 147

Control
3. Increase the U-Line to 60% UBase and U-Bus to be equal to
100% UBase . The outputs should not be activated.
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 one the U-line. This corresponds to an energizing of a dead bus from a live line.
Procedure
1. Verify the local HMI settings AutoEnerg or ManEnerg to be DBLL .
2. Apply a single-phase voltage of 30% UBase to the U-bus and a sin-
gle-phase voltage of 100% UBase to the U-line.
3. Check that the AUTOENOK and MANENOK outputs are activated.
4. Decrease the U-line to 60% UBase and keep the U-bus equal to 30%
UBase .
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)
Procedure
1. Verify the local HMI settings AutoEnerg or ManEnerg to be Both .
2. Apply a single-phase voltage of 30% UBase to the U-line and a sin-
gle-phase voltage of 100% UBase to the U-bus.
3. Check that the AUTOENOK and MANENOK outputs are activated.
4. Change the connection so that the U-line is equal to100% UBase and
the U-bus is equal to 30% UBase .
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, i.e closing of the breaker in a non-energized system. Test is valid only
when this function is used.
Procedure
1. Verify the local HMI setting AutoEnerg to Off and ManEnerg to DBLL .
2. Set the parameter ManDBDL to On .
Chapter 11
Verifying settings by secondary
injection
139