ABB REC 561 - Dead Bus Live Line (DBLL)

ABB Network Partner AB
Synchronism and energizing
check for single circuit breaker
with voltage selection
Version 1.0-00
1MRK 580 152-XEN
Page 5 - 26
1 Set these MMI settings:
2 Apply a single-phase voltage 100% U
r
/sqr3 to the U-bus (U5), and a
single-phase voltage 30% U
r
/sqr3 to the U-line (UL1).
3 Check that the SYN1-AUTOOK and SYN1-MANOK outputs are
activated.
4 Increase the U-Line (UL1) to 60% U
r
/sqr3 and U-Bus(U5) to be equal
to 100% U
r
/sqr3. The outputs should not be activated.
5 The test can be repeated with different values on the U-Bus and the
U-Line.
4.3.2 Dead bus live line
(DBLL)
The test should verify that the energizing function operates for a low volt-
age on the U-bus and for a high one on the U-line. This corresponds to an
energizing of a dead bus from a live line.
1 Change the MMI settings AutoEnerg and ManEnerg to DBLL.
2 Apply a single-phase voltage of 30% U
r
/sqr3 to the U-bus (U5) and a
single-phase voltage of 100% U
r
/sqr3 to the U-line (UL1).
3 Check that the SYN1-AUTOOK and SYN1-MANOK outputs are
activated.
4 Decrease the U-line to 60% U
r
/sqr3 and keep the U-bus equal to 30%
U
r
/sqr3.
The outputs should not be activated.
5 The test can be repeated with different values on the U-bus and the U-
line.
Parameter Setting
Operation On
InputPhase UL1
USelection SingleBus
AutoEnerg DLLB
ManEnerg DLLB
UHigh 80%
U
r
/sqr3
ULow 40% U
r
/sqr3
FreqDiff 0,05 Hz
PhaseDiff 45°
UDiff 15%
tAutoEnerg 0.5 s
tManEnerg 0.5 s