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12.4
12.4.1
Synchrocheck and energizing check (SYN)
Testing the voltage selection
The settings in
table
13can be used during the test if the final setting is not determined.
Table 13:
Test settings for voltage selection (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
Testing the voltage selection for single CB arrangements
This test should verify that the correct voltage is selected for the measurement in the energizing
function used in a double-bus arrangement. Apply a single-phase voltage of 30% U1b to the
U-line (UL1) and a single-phase voltage of 100% U1b to the U-bus (U5).
If the SYN1-UB1/2OK inputs for the fuse failure are used, normally they must be activated, thus
activated and deactivated must be inverted in the description of tests below.
1.
Connect the signals below to binary inputs and binary outputs.
Setting
On
UL1
Ph/N
0 deg
1.00
DbleB
Both
Both
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
NA
NA
injection
117
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