ABB Relion 670 Series Technical Reference Manual page 551

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