
8.5.5
Setting parameters
Table 277:
VDCPTOV (60) Group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Disabled
Enabled
-
-
Disabled
Operation Enable/Disable
VBase
0.50 - 2000.00
kV
0.01
400.00
Base Voltage
BlkDiffAtVLow
No
Yes
-
-
Yes
Block operation at low voltage
VDTrip
0.0 - 100.0
%VB
0.1
5.0
Operate level, in % of VBase
tTrip
0.000 - 60.000
s
0.001
1.000
Time delay for voltage differential operate, in
milliseconds
tReset
0.000 - 60.000
s
0.001
0.000
Time delay for voltage differential reset, in
seconds
V1Low
0.0 - 100.0
%VB
0.1
70.0
Input 1 undervoltage level, in % of VBase
V2Low
0.0 - 100.0
%VB
0.1
70.0
Input 2 undervoltage level, in % of VBase
tBlock
0.000 - 60.000
s
0.001
0.000
Reset time for undervoltage block
VDAlarm
0.0 - 100.0
%VB
0.1
2.0
Alarm level, in % of VBase
tAlarm
0.000 - 60.000
s
0.001
2.000
Time delay for voltage differential alarm, in
seconds
Table 278:
VDCPTOV (60) Group settings (advanced)
Name
Values (Range)
Unit
Step
Default
Description
RF_A
0.000 - 3.000
-
0.001
1.000
Ratio compensation factor phase L1
U2L1*RFL1=U1L1
RF_B
0.000 - 3.000
-
0.001
1.000
Ratio compensation factor phase L2
U2L2*RFL2=U1L2
RF_C
0.000 - 3.000
-
0.001
1.000
Ratio compensation factor phase L3
U2L3*RFL3=U1L3
8.5.6
Technical data
Table 279:
VDCPTOV (60) technical data
Function
Range or value
Accuracy
Voltage difference for alarm and
trip
(0.0–100.0) % of
VBase
± 0.5 % of V
n
Under voltage level
(0.0–100.0) % of
VBase
± 0.5% of V
n
Timers
(0.000–60.000)s
± 0.5% ± 10 ms
1MRK505222-UUS C
Section 8
Voltage protection
545
Technical reference manual
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