ABB Relion REG670, Technical Manual

Page: 597 / 1298

AND
a
b
b>a
Selected voltage
StartVolt_UV1
Operation_UV1=On
BLKUV1
Inverse time
selected
en05000752.vsd
Inverse
DEF
DEF time
selected
OR
STUV1
TRUV1
AND
BLKTRUV
1
IEC05000752 V1 EN
Figure 283: Simplified internal logic diagram for built-in first undervoltage step UV1 (step UV2 has the same
internal logic)
11.1.8 Technical data
Table 337: CVGAPC technical data
Function Range or value Accuracy
Measuring current
input
phase1, phase2, phase3, PosSeq, -
NegSeq, -3*ZeroSeq, MaxPh, MinPh,
UnbalancePh, phase1-phase2, phase2-
phase3, phase3-phase1, MaxPh-Ph,
MinPh-Ph, UnbalancePh-Ph
-
Measuring voltage
input
phase1, phase2, phase3, PosSeq, -
NegSeq, -3*ZeroSeq, MaxPh, MinPh,
UnbalancePh, phase1-phase2, phase2-
phase3, phase3-phase1, MaxPh-Ph,
MinPh-Ph, UnbalancePh-Ph
-
Start overcurrent,
step 1 - 2
(2 - 5000)% of IBase ±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
Start undercurrent,
step 1 - 2
(2 - 150)% of IBase ±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
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):
Start 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
-
Table continues on next page
1MRK502052-UEN B
Section 11
Multipurpose protection
591
Technical manual