ABB REL670 - Page 89

Multipurpose protection
Table 74. General current and voltage protection CVGAPC
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
x I
set
to 0, 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 x I
set
to 0 Min. = 15 ms
Max. = 30 ms
-
Start time at 0 to 10 x I
set
Min. = 5 ms
Max. = 20 ms
-
Reset time at 10 x I
set
to 0 Min. = 20 ms
Max. = 35 ms
-
Undercurrent:
Start time at 2 x I
set
to 0 Min. = 15 ms
Max. = 30 ms
-
Reset time at 0 to 2 x I
set
Min. = 15 ms
Max. = 30 ms
-
Overcurrent:
Inverse time characteristics, see table
180, 181 and table 182
16 curve types See table 180, 181 and table 182
Overcurrent:
Minimum operate time for inverse curves,
step 1 - 2
(0.00 - 6000.00) s ±0.2% or ±35 ms whichever is greater
Voltage level where voltage memory takes
over
(0.0 - 5.0)% of UBase ±0.5% of U
r
Start overvoltage, step 1 - 2 (2.0 - 200.0)% of UBase ±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
1MRK 506 372-BEN -
Line distance protection REL670 2.2
Product version: 2.2
ABB 89