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12.3.3
Synchrocheck and energizing check (SYN)
Parameter
USelection
AutoEnerg
ManEnerg
ManDBDL
UHigh
ULow
FreqDiff
PhaseDiff
UDiff
tAutoEnerg
tManEnerg
OperationSynch
ShortPulse
FreqDiffSynch
tPulse
tBreaker
VTConnection
tSync
FreqDiffBlock
1.
Apply a single-phase voltage 100% U1b to the U-bus (U5), and a sin-
gle-phase voltage 30% U1b to the U-line (UL1).
2.
Check that the SYN1-AUTOOK and SYN1-MANOK outputs are acti-
vated.
3.
Increase the U-Line (UL1) to 60% U1b and U-Bus(U5) to be equal to
100% U1b. 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 function operates for a low voltage 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 HMI settings AutoEnerg and ManEnerg to DBLL.
2.
Apply a single-phase voltage of 30% U1b to the U-bus (U5) and a sin-
gle-phase voltage of 100% U1b to the U-line (UL1).
Setting
SingleBus
DLLB
DLLB
Off
80% U1b
40% U1b
0,05 Hz
45 °
15% U1b
0.5 s
0.5 s
Off
Off
0.4 Hz
0.2 s
0.2 s
Line
Os
Off
Chapter 13
Verifying settings by secondary
Single bay
Single bay
Multiple
with phas-
bays
ing
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
injection
115
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