ABB Relion 670 series - Page 718

AND
a
b
b>a
Selected voltage
PickupVolt_UV1
Operation_UV1=On
BLKUV1
Inverse time
selected
en05000752_ansi.vsd
Inverse
0-DEF
DEF time
selected
OR
PU_UV1
TRUV1
AND
BLKTRUV1
0
ANSI05000752 V1 EN-US
Figure 382: Simplified internal logic diagram for built-in first undervoltage step UV1 (step UV2 has the same
internal logic)
11.1.8 Technical data
M13095-2 v7
Table 414: CVGAPC technical data
Function Range or value Accuracy
Measuring current input Phase A, Phase B, Phase C, PosSeq, -
NegSeq, -3*ZeroSeq, MaxPh, MinPh,
UnbalancePh, Phase A-Phase B, Phase
B-Phase C, Phase C-Phase A, MaxPh-
Ph, MinPh-Ph, UnbalancePh-Ph
-
Measuring voltage input Phase A, Phase B, Phase C, PosSeq, -
NegSeq, -3*ZeroSeq, MaxPh, MinPh,
UnbalancePh, Phase A-Phase B, Phase
B-Phase C, Phase C-Phase A, MaxPh-
Ph, MinPh-Ph, UnbalancePh-Ph
-
Pickup overcurrent, step 1 - 2 (2 - 5000)% of IBase ±1.0% of I
n
at I ≤ I
n
±1.0% of I at I > I
n
Pickup undercurrent, step 1-2 (2 - 150)% of IBase ±1.0% of I
n
at I ≤ I
n
±1.0% of I at I > I
n
Independent time delay, overcurrent at
0 to 2 x I
set
, step 1 - 2
(0.00 - 6000.00) s ±0.2% or ±35 ms whichever is
greater
Independent time delay, undercurrent
at 2 to 0 x I
set
, step 1 - 2
(0.00 - 6000.00) s ±0.2% or ±35 ms whichever is
greater
Overcurrent (non-directional):
Pickup time at 0 to 2 x I
set
Min. = 15 ms
Max. = 30 ms
-
Reset time at 2 to 0 x I
set
Min. = 15 ms
Max. = 30 ms
-
Pickup time at 0 to 10 x I
set
Min. = 5 ms
Max. = 20 ms
-
Table continues on next page
Section 11 1MRK 502 066-UUS B
Multipurpose protection
712
Technical manual