ABB REB 551-C3*2.5 Installation And Commissioning Manual page 120

Synchrocheck and energizing check (SYN)
Table 11: Test settings for phase difference (NA=Not applicable)
Parameter
Operation
InputPhase
UMeasure
PhaseShift
URatio
USelection
AutoEnerg
ManEnerg
ManDBDL
UHigh
ULow
FreqDiff
PhaseDiff
UDiff
tAutoEnerg
tManEnerg
OperationSynch
ShortPulse
FreqDiffSynch
tPulse
tBreaker
VTConnection
tSync
FreqDiffBlock
Test with UDiff = 0%
1. Apply voltages U-line (UL1) = 100% U1b and U-bus (U5) = 100% U1b,
with a phase difference equal to 0° and a frequency difference that is
lower than 50 mHz.
2. Check that the SYN1-AUTOOK and SYN1-MANOK outputs are acti-
vated.
The test can be repeated with other PhaseDiff values to verify that the
function operates for values lower than the set ones. By changing the
phase angle on U1 connected to U-bus, between ± 45°. The user can
check that the two outputs are activated for a PhaseDiff lower than 45°.
It should not operate for other values. See
Setting
On
UL1
Ph/N
0 deg
1.00
SingleBus
Off
Off
Off
70% 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
Figure
Verifying settings by secondary
Single bay Single bay
with phas-
ing
NA NA
NA
NA
NA
NA
NA
NA
21.
Chapter 13
injection
Multiple
bays
NA
NA
NA
NA
NA
NA
NA
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