ABB Relion 670 series, Technical Reference Manual, Page: 551 / 1232

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